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Dr. Ryan V. Cantwell is a fourth generation physician and native Atlantan. Within the field of primary care medicine, he particularly enjoys prevention, sports medicine and fitness, as well as participating in short-term overseas medical missions. As an Aviation Medical Examiner, he does Class I,II and III flight physicals for the Federal Aviation Administration. After his undergraduate training at Duke University in North Carolina, he earned his Doctorate in Medicine from Morehouse School of Medicine in Atlanta, GA.
He was recognized by the National Committee for Quality Assurance (NCQA)’s Bridges to Excellence program for their quality diabetes care and management. The Bridges to Excellence program is designed to create significant leaps in the quality of care by recognizing and rewarding healthcare providers who demonstrate that they have implemented comprehensive solutions in the management of patients and deliver safe, timely, effective, efficient, equitable and patient-centered care.
Specialties
Internal Medicine
Education & Training
Morehouse School of Medicine
Degree
Doctor of Medicine
Residency
Mayo Clinic and Foundation
Certifications
American Board of Internal Medicine
Hospital Affiliations
Wellstar Kennestone Hospital
Languages spoken
English
Common Treatments, Conditions, and Procedures
Anemia
COPD
High Blood Pressure
High Cholesterol
Immunization
Men's Health
Stop Smoking
Patient Reviews
Overall patient rating
4.9
Based on 766 patient ratings
I'd recommend this provider to family and friends
I'd recommend this practice to family and friends
Listened to me carefully
Earned my trust
Shared the right amount of information
All reviews have been submitted by patients after seeing the provider.For more information about the review system, check out this Learn more about our review system.
Patient Reviews
5
Good communication skills
July 30, 2026
5
Love dr Cantwell. Wellstar processes work so smoothly
July 30, 2026
5
Dr. Cantwell is an excellent doctor but more than that he's a wonderful person. I look forward to going to his office because he not only gets all the information from the computer, but he listens carefully what I'm saying you're such a fortunate group of people to have a doctor like Dr. Cantwell in your practice I cannot recommend him highly enough! He is great!
July 30, 2026
5
I received endless text messages, phone calls, and emails reminding me of this appointment. I understand that people forget their appointments often, but the reminders became excessive and intrusive. Otherwise, my doctor and the medical team were exceptional.
July 23, 2026
5
Great Dr experience. He's been good to me for many years. Listens well and diagnoses issues for me accurately. He's a good man, husband, and dad.
July 24, 2026
5
Dr. Cantwell always listens and helps me make the right choices to better my health.
July 23, 2026
5
I have referred them 2 new patients this year so far .
July 22, 2026
5
Dr. Cantwell is a superb doctor.
July 20, 2026
5
Great experience during the visits with Dr. Cantwell and Team
July 19, 2026
5
Everything was good except when I gave blood, my arm was bruised when the technician poked in the wrong spot
July 18, 2026
5
As always it was a very good experience. Dr.Cantwell is very caring and considerate as well as knowledgeable.
July 18, 2026
5
The two ladies at the intake desk were warm, very friendly. Cassidy was very competent, very personable. Dr. Cantwell was patient and thorough, listened patiently. Very good visit.
July 17, 2026
5
Very good experience, as usual!
July 17, 2026
3
Dr. Cantwell was great as a person, nothing against him. I just felt like the appointment was really short and rushed and didn't have a lot of time to really discuss overall health. Felt like it was just a quick, hey, how are you?
July 17, 2026
5
Very efficient and smooth visit as always!
July 16, 2026
5
Dr. Cantwell is the best doctor in Cobb County.
July 15, 2026
5
I am very satisfied to have Dr Cantwell as my healthcare provider. He talks great care to listen to any health concerns I might have and ensures I am comfortable that my concerns were addressed completely or that he took any required actions to ensure I received follow up care to address issues that were not able to be resolved during any office visit. Definitely recommend him as a healthcare provider.
July 11, 2026
5
My provider is amazing! He is professional, a good listener, answers all my questions and makes me feel valued!
July 11, 2026
5
Dr. Cantwell and his team are very caring and supportive. They are great.
July 10, 2026
5
Have been going to Dr. Cantwell for 20 years and believe he cares about my wellbeing.
July 10, 2026
5
A very positive experience from the person who checked me in at the desk, to Cassidy, who took me back to the room, to Dr. Cantwell he was so professional, kind, and concerned, to the person who checked me out. Also a shout out to the lab staff in the building, in and out in a very efficient manner, very courteous, and the venipuncture was painless. Thank you to Dr. Cantwell and all of his staff.
July 9, 2026
5
Dr. Cantwell and team are excellent
July 4, 2026
5
They are great!! All of them!!
July 4, 2026
2
I felt I was not taking seriously about my pain. I was afterwards admitted to hospital. When following up after hospital stay about my abnormal blood results I was referred back to ER although ER told me to follow up with my doctor. Disappointing experience, I will switch to another wellstar primary care physician
July 17, 2026
5
I have been happy with my care at Kennestone!
July 4, 2026
5
Annual check up was done and all my questions were asked and answered. Bloodwork was done and handled professionally and with care!
July 3, 2026
5
Everyone was courteous and provided great customer service. Dr. Cantwell is very smart and I trust him implicitly with my care.
July 3, 2026
5
Dr. Cantwell and his staff are friendly and patient. I never have to wait long for my appointment and I feel as though they care about my health and answering all my questions.
July 3, 2026
5
Dr. Cantwell was congenial and very thorough with my care. His nurse also. Am thankful for their service.
July 2, 2026
5
Very complete annual physical
July 2, 2026
5
Good communication skills
July 30, 2026
5
Love dr Cantwell. Wellstar processes work so smoothly
July 30, 2026
5
Dr. Cantwell is an excellent doctor but more than that he's a wonderful person. I look forward to going to his office because he not only gets all the information from the computer, but he listens carefully what I'm saying you're such a fortunate group of people to have a doctor like Dr. Cantwell in your practice I cannot recommend him highly enough! He is great!
July 30, 2026
5
I received endless text messages, phone calls, and emails reminding me of this appointment. I understand that people forget their appointments often, but the reminders became excessive and intrusive. Otherwise, my doctor and the medical team were exceptional.
July 23, 2026
5
Great Dr experience. He's been good to me for many years. Listens well and diagnoses issues for me accurately. He's a good man, husband, and dad.
July 24, 2026
5
Dr. Cantwell always listens and helps me make the right choices to better my health.
July 23, 2026
5
I have referred them 2 new patients this year so far .
July 22, 2026
5
Dr. Cantwell is a superb doctor.
July 20, 2026
5
Great experience during the visits with Dr. Cantwell and Team
July 19, 2026
5
Everything was good except when I gave blood, my arm was bruised when the technician poked in the wrong spot
July 18, 2026
5
As always it was a very good experience. Dr.Cantwell is very caring and considerate as well as knowledgeable.
July 18, 2026
5
The two ladies at the intake desk were warm, very friendly. Cassidy was very competent, very personable. Dr. Cantwell was patient and thorough, listened patiently. Very good visit.
July 17, 2026
5
Very good experience, as usual!
July 17, 2026
5
Very efficient and smooth visit as always!
July 16, 2026
5
Dr. Cantwell is the best doctor in Cobb County.
July 15, 2026
5
I am very satisfied to have Dr Cantwell as my healthcare provider. He talks great care to listen to any health concerns I might have and ensures I am comfortable that my concerns were addressed completely or that he took any required actions to ensure I received follow up care to address issues that were not able to be resolved during any office visit. Definitely recommend him as a healthcare provider.
July 11, 2026
5
My provider is amazing! He is professional, a good listener, answers all my questions and makes me feel valued!
July 11, 2026
5
Dr. Cantwell and his team are very caring and supportive. They are great.
July 10, 2026
5
Have been going to Dr. Cantwell for 20 years and believe he cares about my wellbeing.
July 10, 2026
5
A very positive experience from the person who checked me in at the desk, to Cassidy, who took me back to the room, to Dr. Cantwell he was so professional, kind, and concerned, to the person who checked me out. Also a shout out to the lab staff in the building, in and out in a very efficient manner, very courteous, and the venipuncture was painless. Thank you to Dr. Cantwell and all of his staff.
July 9, 2026
5
Dr. Cantwell and team are excellent
July 4, 2026
5
They are great!! All of them!!
July 4, 2026
5
I have been happy with my care at Kennestone!
July 4, 2026
5
Annual check up was done and all my questions were asked and answered. Bloodwork was done and handled professionally and with care!
July 3, 2026
5
Everyone was courteous and provided great customer service. Dr. Cantwell is very smart and I trust him implicitly with my care.
July 3, 2026
5
Dr. Cantwell and his staff are friendly and patient. I never have to wait long for my appointment and I feel as though they care about my health and answering all my questions.
July 3, 2026
5
Dr. Cantwell was congenial and very thorough with my care. His nurse also. Am thankful for their service.
July 2, 2026
5
Very complete annual physical
July 2, 2026
3
Dr. Cantwell was great as a person, nothing against him. I just felt like the appointment was really short and rushed and didn't have a lot of time to really discuss overall health. Felt like it was just a quick, hey, how are you?
July 17, 2026
2
I felt I was not taking seriously about my pain. I was afterwards admitted to hospital. When following up after hospital stay about my abnormal blood results I was referred back to ER although ER told me to follow up with my doctor. Disappointing experience, I will switch to another wellstar primary care physician
July 17, 2026
2
I felt I was not taking seriously about my pain. I was afterwards admitted to hospital. When following up after hospital stay about my abnormal blood results I was referred back to ER although ER told me to follow up with my doctor. Disappointing experience, I will switch to another wellstar primary care physician
July 17, 2026
3
Dr. Cantwell was great as a person, nothing against him. I just felt like the appointment was really short and rushed and didn't have a lot of time to really discuss overall health. Felt like it was just a quick, hey, how are you?
July 17, 2026
5
Good communication skills
July 30, 2026
5
Love dr Cantwell. Wellstar processes work so smoothly
July 30, 2026
5
Dr. Cantwell is an excellent doctor but more than that he's a wonderful person. I look forward to going to his office because he not only gets all the information from the computer, but he listens carefully what I'm saying you're such a fortunate group of people to have a doctor like Dr. Cantwell in your practice I cannot recommend him highly enough! He is great!
July 30, 2026
5
I received endless text messages, phone calls, and emails reminding me of this appointment. I understand that people forget their appointments often, but the reminders became excessive and intrusive. Otherwise, my doctor and the medical team were exceptional.
July 23, 2026
5
Great Dr experience. He's been good to me for many years. Listens well and diagnoses issues for me accurately. He's a good man, husband, and dad.
July 24, 2026
5
Dr. Cantwell always listens and helps me make the right choices to better my health.
July 23, 2026
5
I have referred them 2 new patients this year so far .
July 22, 2026
5
Dr. Cantwell is a superb doctor.
July 20, 2026
5
Great experience during the visits with Dr. Cantwell and Team
July 19, 2026
5
Everything was good except when I gave blood, my arm was bruised when the technician poked in the wrong spot
July 18, 2026
5
As always it was a very good experience. Dr.Cantwell is very caring and considerate as well as knowledgeable.
July 18, 2026
5
The two ladies at the intake desk were warm, very friendly. Cassidy was very competent, very personable. Dr. Cantwell was patient and thorough, listened patiently. Very good visit.
July 17, 2026
5
Very good experience, as usual!
July 17, 2026
5
Very efficient and smooth visit as always!
July 16, 2026
5
Dr. Cantwell is the best doctor in Cobb County.
July 15, 2026
5
I am very satisfied to have Dr Cantwell as my healthcare provider. He talks great care to listen to any health concerns I might have and ensures I am comfortable that my concerns were addressed completely or that he took any required actions to ensure I received follow up care to address issues that were not able to be resolved during any office visit. Definitely recommend him as a healthcare provider.
July 11, 2026
5
My provider is amazing! He is professional, a good listener, answers all my questions and makes me feel valued!
July 11, 2026
5
Dr. Cantwell and his team are very caring and supportive. They are great.
July 10, 2026
5
Have been going to Dr. Cantwell for 20 years and believe he cares about my wellbeing.
July 10, 2026
5
A very positive experience from the person who checked me in at the desk, to Cassidy, who took me back to the room, to Dr. Cantwell he was so professional, kind, and concerned, to the person who checked me out. Also a shout out to the lab staff in the building, in and out in a very efficient manner, very courteous, and the venipuncture was painless. Thank you to Dr. Cantwell and all of his staff.
July 9, 2026
5
Dr. Cantwell and team are excellent
July 4, 2026
5
They are great!! All of them!!
July 4, 2026
5
I have been happy with my care at Kennestone!
July 4, 2026
5
Annual check up was done and all my questions were asked and answered. Bloodwork was done and handled professionally and with care!
July 3, 2026
5
Everyone was courteous and provided great customer service. Dr. Cantwell is very smart and I trust him implicitly with my care.
July 3, 2026
5
Dr. Cantwell and his staff are friendly and patient. I never have to wait long for my appointment and I feel as though they care about my health and answering all my questions.
July 3, 2026
5
Dr. Cantwell was congenial and very thorough with my care. His nurse also. Am thankful for their service.
July 2, 2026
5
Very complete annual physical
July 2, 2026
5
Good communication skills
July 30, 2026
5
Love dr Cantwell. Wellstar processes work so smoothly
July 30, 2026
5
Dr. Cantwell is an excellent doctor but more than that he's a wonderful person. I look forward to going to his office because he not only gets all the information from the computer, but he listens carefully what I'm saying you're such a fortunate group of people to have a doctor like Dr. Cantwell in your practice I cannot recommend him highly enough! He is great!
July 30, 2026
5
Great Dr experience. He's been good to me for many years. Listens well and diagnoses issues for me accurately. He's a good man, husband, and dad.
July 24, 2026
5
Dr. Cantwell always listens and helps me make the right choices to better my health.
July 23, 2026
5
I received endless text messages, phone calls, and emails reminding me of this appointment. I understand that people forget their appointments often, but the reminders became excessive and intrusive. Otherwise, my doctor and the medical team were exceptional.
July 23, 2026
5
I have referred them 2 new patients this year so far .
July 22, 2026
5
Dr. Cantwell is a superb doctor.
July 20, 2026
5
Great experience during the visits with Dr. Cantwell and Team
July 19, 2026
5
Everything was good except when I gave blood, my arm was bruised when the technician poked in the wrong spot
July 18, 2026
5
As always it was a very good experience. Dr.Cantwell is very caring and considerate as well as knowledgeable.
July 18, 2026
3
Dr. Cantwell was great as a person, nothing against him. I just felt like the appointment was really short and rushed and didn't have a lot of time to really discuss overall health. Felt like it was just a quick, hey, how are you?
July 17, 2026
5
The two ladies at the intake desk were warm, very friendly. Cassidy was very competent, very personable. Dr. Cantwell was patient and thorough, listened patiently. Very good visit.
July 17, 2026
2
I felt I was not taking seriously about my pain. I was afterwards admitted to hospital. When following up after hospital stay about my abnormal blood results I was referred back to ER although ER told me to follow up with my doctor. Disappointing experience, I will switch to another wellstar primary care physician
July 17, 2026
5
Very good experience, as usual!
July 17, 2026
5
Very efficient and smooth visit as always!
July 16, 2026
5
Dr. Cantwell is the best doctor in Cobb County.
July 15, 2026
5
I am very satisfied to have Dr Cantwell as my healthcare provider. He talks great care to listen to any health concerns I might have and ensures I am comfortable that my concerns were addressed completely or that he took any required actions to ensure I received follow up care to address issues that were not able to be resolved during any office visit. Definitely recommend him as a healthcare provider.
July 11, 2026
5
My provider is amazing! He is professional, a good listener, answers all my questions and makes me feel valued!
July 11, 2026
5
Dr. Cantwell and his team are very caring and supportive. They are great.
July 10, 2026
5
Have been going to Dr. Cantwell for 20 years and believe he cares about my wellbeing.
July 10, 2026
5
A very positive experience from the person who checked me in at the desk, to Cassidy, who took me back to the room, to Dr. Cantwell he was so professional, kind, and concerned, to the person who checked me out. Also a shout out to the lab staff in the building, in and out in a very efficient manner, very courteous, and the venipuncture was painless. Thank you to Dr. Cantwell and all of his staff.
July 9, 2026
5
I have been happy with my care at Kennestone!
July 4, 2026
5
Dr. Cantwell and team are excellent
July 4, 2026
5
They are great!! All of them!!
July 4, 2026
5
Everyone was courteous and provided great customer service. Dr. Cantwell is very smart and I trust him implicitly with my care.
July 3, 2026
5
Annual check up was done and all my questions were asked and answered. Bloodwork was done and handled professionally and with care!
July 3, 2026
5
Dr. Cantwell and his staff are friendly and patient. I never have to wait long for my appointment and I feel as though they care about my health and answering all my questions.
July 3, 2026
5
Dr. Cantwell was congenial and very thorough with my care. His nurse also. Am thankful for their service.
July 2, 2026
5
Very complete annual physical
July 2, 2026
5
Very complete annual physical
July 2, 2026
5
Dr. Cantwell was congenial and very thorough with my care. His nurse also. Am thankful for their service.
July 2, 2026
5
Dr. Cantwell and his staff are friendly and patient. I never have to wait long for my appointment and I feel as though they care about my health and answering all my questions.
July 3, 2026
5
Annual check up was done and all my questions were asked and answered. Bloodwork was done and handled professionally and with care!
July 3, 2026
5
Everyone was courteous and provided great customer service. Dr. Cantwell is very smart and I trust him implicitly with my care.
July 3, 2026
5
They are great!! All of them!!
July 4, 2026
5
Dr. Cantwell and team are excellent
July 4, 2026
5
I have been happy with my care at Kennestone!
July 4, 2026
5
A very positive experience from the person who checked me in at the desk, to Cassidy, who took me back to the room, to Dr. Cantwell he was so professional, kind, and concerned, to the person who checked me out. Also a shout out to the lab staff in the building, in and out in a very efficient manner, very courteous, and the venipuncture was painless. Thank you to Dr. Cantwell and all of his staff.
July 9, 2026
5
Have been going to Dr. Cantwell for 20 years and believe he cares about my wellbeing.
July 10, 2026
5
Dr. Cantwell and his team are very caring and supportive. They are great.
July 10, 2026
5
My provider is amazing! He is professional, a good listener, answers all my questions and makes me feel valued!
July 11, 2026
5
I am very satisfied to have Dr Cantwell as my healthcare provider. He talks great care to listen to any health concerns I might have and ensures I am comfortable that my concerns were addressed completely or that he took any required actions to ensure I received follow up care to address issues that were not able to be resolved during any office visit. Definitely recommend him as a healthcare provider.
July 11, 2026
5
Dr. Cantwell is the best doctor in Cobb County.
July 15, 2026
5
Very efficient and smooth visit as always!
July 16, 2026
5
Very good experience, as usual!
July 17, 2026
2
I felt I was not taking seriously about my pain. I was afterwards admitted to hospital. When following up after hospital stay about my abnormal blood results I was referred back to ER although ER told me to follow up with my doctor. Disappointing experience, I will switch to another wellstar primary care physician
July 17, 2026
5
The two ladies at the intake desk were warm, very friendly. Cassidy was very competent, very personable. Dr. Cantwell was patient and thorough, listened patiently. Very good visit.
July 17, 2026
3
Dr. Cantwell was great as a person, nothing against him. I just felt like the appointment was really short and rushed and didn't have a lot of time to really discuss overall health. Felt like it was just a quick, hey, how are you?
July 17, 2026
5
As always it was a very good experience. Dr.Cantwell is very caring and considerate as well as knowledgeable.
July 18, 2026
5
Everything was good except when I gave blood, my arm was bruised when the technician poked in the wrong spot
July 18, 2026
5
Great experience during the visits with Dr. Cantwell and Team
July 19, 2026
5
Dr. Cantwell is a superb doctor.
July 20, 2026
5
I have referred them 2 new patients this year so far .
July 22, 2026
5
I received endless text messages, phone calls, and emails reminding me of this appointment. I understand that people forget their appointments often, but the reminders became excessive and intrusive. Otherwise, my doctor and the medical team were exceptional.
July 23, 2026
5
Dr. Cantwell always listens and helps me make the right choices to better my health.
July 23, 2026
5
Great Dr experience. He's been good to me for many years. Listens well and diagnoses issues for me accurately. He's a good man, husband, and dad.
July 24, 2026
5
Dr. Cantwell is an excellent doctor but more than that he's a wonderful person. I look forward to going to his office because he not only gets all the information from the computer, but he listens carefully what I'm saying you're such a fortunate group of people to have a doctor like Dr. Cantwell in your practice I cannot recommend him highly enough! He is great!
July 30, 2026
5
Love dr Cantwell. Wellstar processes work so smoothly
July 30, 2026
5
Good communication skills
July 30, 2026
Publications and Articles
Wellstar Team Members Voted Best of Cobb in 2024
The care teams at Wellstar are dedicated to enhancing the health and well-being of everyone we serve, and we thank our team members for their commitment to world-class care. We also thank Cobb residents for
trusting the expertise of Wellstar to keep their families healthy and provide them with more than healthcare, PeopleCare.
Several Wellstar team members have been voted among the Best of Cobb:
Bruce Alayof, MD
Wellstar Center for Cardiovascular Care
Cardiac/Vascular Specialist, Third Place
Ryan Cantwell, MD
Wellstar Primary Care
Family Physician, Third Place
General Practice Doctor, Third Place
The care teams at Wellstar are dedicated to enhancing the health and well-being of everyone we serve, and we thank our team members for their commitment to world-class care. We also thank Cobb residents for
trusting the expertise of Wellstar to keep their families healthy and provide them with more than healthcare, PeopleCare.
Several Wellstar team members have been voted among the Best of Cobb:
Bruce Alayof, MD
Wellstar Center for Cardiovascular Care
Best Cardiac/Vascular Specialist, Second Place
Kyle Brown
Wellstar Health Place
Best Personal Trainer, Second Place
Ryan Breshears, PhD
Wellstar Clinical Psychology
Best Psychologist, Second Place
Ryan Cantwell, MD
Wellstar Internal Medicine
Best Family Physician, First Place
Best General Practice Doctor, Second Place
Kozue Cunningham
Wellstar Health Place
Best Massage Therapist, First Place
Diedre Greene, MD
Wellstar Pediatrics
Best Pediatrician, Second Place
Amy Gross
Wellstar Outpatient Rehabilitation
Best Physical Therapist, First Place
Wellstar Health System has recently hit 1 million active users on MyChart. When we deployed this electronic medical record patient portal in 2015, we were the first Georgia-based health system to offer the service to patients.
Since then, MyChart has transformed the way patients interact with their healthcare information and clinical team by giving them 24/7 access at their fingertips. Patients became active participants in their care, both during their hospital stay and at home. Research shows that empowering patients to take control of their health leads to lower costs and better clinical outcomes.
MyChart’s "Open Notes" feature also allows patients to go to appointments and ask questions without having to worry about writing down information. Our physicians type up all notes and attach them to the records, allowing patients to review everything once they get home. If additional questions come to mind, patients can also ask them directly on the portal.
"I love MyChart and that I keep everything organized. What medications I'm taking, I can order them easily. I can text the doctors and Sharon at Ryan Cantwell's office, the nurse there," said Frank Ryan, who has used Wellstar to navigate through his health journey for several years.
"At Wellstar, we work as a team to take care of our patients," Wellstar Family Medicine Physician Dr. Ryan Cantwell said. "I enjoy being my patients’ quarterback and coordinating their care with other physicians. Through our electronic health records system, the referral process and communication with other specialists is easy and accurate."
That’s why Wellstar continues working on how we connect digitally with our patients to improve their experience and keep them in control of their health.
In 2018, we set the goal of reaching Epic’s top quartile for MyChart activation, which was 50 percent. At that time, the activation rate at Wellstar was 28 percent, with 420,000 patients signed up for MyChart. As of July 2022, the MyChart activation rate at Wellstar hit 65 percent.
Looking to the future, Wellstar is focusing on increasing and optimizing MyChart digital experiences, particularly around patient self-scheduling, e-Check, and MyChart bedside utilization for in-patient encounters. This high level of MyChart engagement ultimately gets Wellstar closer to our mission of providing world-class healthcare to every person we serve.
