Our "Book Now" feature should not be used for life threatening conditions such as heart attack, severe injury, poisoning, chest pain, or stroke. If you are experiencing such conditions, STOP and CALL 911 IMMEDIATELY or visit your nearest Emergency Department.
Dr. Patrick Hammen is a highly accomplished surgeon specializing in colon and rectal surgery. He offers expert care for patients aged 18 and older. He earned his medical degree from Mercer University in Macon, Georgia, and completed his residency at Memorial Health University Medical Center in Savannah, Georgia. Following this, he pursued advanced training with a fellowship at the University of Texas Health Science Center.
Dr. Hammen holds dual board certifications in General Surgery from the American Board of Surgery and in Colon and Rectal Surgery from the American Board of Colon and Rectal Surgery. He is a distinguished Fellow of both the American College of Surgeons and the American Society of Colon and Rectal Surgeons.
Dr. Hammen brings decades of expertise to his practice, focusing on the diagnosis and treatment of colorectal conditions. His areas of specialization include:
Benign anorectal disorders
Inflammatory bowel disease
Colorectal cancer screening and treatment
The surgical management of diverticulitis
Dedicated to delivering compassionate and cutting-edge care, Dr. Hammen is committed to improving his patients' health and quality of life.
In his spare time, Dr. Hammen enjoys reading and spending time with family.
Dr. Hammen welcomes new patients and accepts most insurance plans.
Specialties
Colon and Rectal Surgery
General Surgery
Education & Training
Mercer University
Certifications
American Board of Colon & Rectal Surgery
Hospital Affiliations
Wellstar Cobb Hospital
Wellstar Kennestone Hospital
Languages spoken
English
Patient Reviews
Overall patient rating
4.8
Based on 211 patient ratings
I'd recommend this practice to family and friends
I'd recommend this provider to family and friends
Listened to me carefully
Shared the right amount of information
Earned my trust
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
Dr. Hammen is a great doctor!!!
November 22, 2024
5
I m very happy with the results and the great service provided to me many thanks
November 22, 2024
5
I was very impressed by your service thank you.
November 16, 2024
5
Great people and felt like I got quality care and info about my health problem.
November 16, 2024
5
Can't asked for better care.
November 16, 2024
5
Dr Hammen was great and so were the nurses. I was very well cared for!
November 14, 2024
5
Great experience!
November 8, 2024
5
Great staff and professional.
November 2, 2024
5
Was able to explain my questions and to receive full answers on my journey of health care with WellStar.
November 3, 2024
5
Every staff member was extremely friendly and helpful. Great experience!
October 6, 2024
4
This was my first time meeting this doctor. He is so kind and the best doctor patient relationship I have every experienced
September 28, 2024
5
The staff was super nice and helpful and Dr. Hammen was incredible and comforting and very thorough in his description of the procedure that's going to be done and my overall experience was amazing.
September 22, 2024
5
Great doctor shows that he cares about his patients explains everything to me
September 21, 2024
5
I really trust Dr. Hammen.
September 1, 2024
5
Dr Hammen is a wi detail doctor and surgeon. I appreciated his knowledge and understanding. I was comfortable during my appt.
August 31, 2024
5
Everything was successful. I appreciate it. Bye-bye.
August 25, 2024
5
I thought he was a very good doctor. It would be great if Wellstar would try to KEEP doctors like this. Wellstar seems to loose their good doctors. A lot.
August 17, 2024
5
Keep up the good work.
August 16, 2024
5
The doctor and his staff are outstanding.
August 15, 2024
5
It was very nice to attend Wellstar. Everyone is very kind.
August 12, 2024
5
The Entire staff at WellStar is fantastic
August 9, 2024
5
Dr. Hammen and his staff, including the staff at the Wellstar Cobb Hospital during and after my procedure, also the follow-up call that Dr. Hammen and his nurse set up for me was one of the best experiences I've had with an outpatient procedure that was a preventative with it being my first time. I really appreciate the bedside manner and the follow-up calls and the follow-up from the after the procedure. I would highly recommend not only Dr. Hammen and his staff, but also Wellstar in general. Thank you. Have a good day.
August 11, 2024
5
Very helpful and informative, which is what you need when you're dealing with such topics.
August 9, 2024
5
I was very impressed with Dr. Hammen. He made an uncomfortable situation, as comfortable as possible. He listened, and took his time educating me on my condition and treatment options. Very appreciative of Dr. Hammen, and his staff, for a great visit!
August 3, 2024
5
Dr Hammen was excellent! Provided the consultation and information I was looking for.
July 23, 2024
5
The entire Wellstar team couldn't have been better. From the original call addressing and scheduling of my referral, check-in, pre and post op care and Dr Hammen's interactions. The follow-up card was a nice touch! I've heard stories about poor healthcare treatment from others, so I was a bit apprehensive about this procedure. But the Wellstar team couldn't have been better! Thanks
July 13, 2024
5
Nothing much that's thank you for everything.
July 13, 2024
5
Great and friendly team. Than you
July 2, 2024
5
I am satisfied so far with the medical services provide by your Institution. From the desk of the receptionist to the care of the physician, everything went very well. I do congratulate the Staff.
June 29, 2024
5
Great doctor and great staff
June 21, 2024
5
Dr. Hammen is a great doctor!!!
November 22, 2024
5
I m very happy with the results and the great service provided to me many thanks
November 22, 2024
5
I was very impressed by your service thank you.
November 16, 2024
5
Great people and felt like I got quality care and info about my health problem.
November 16, 2024
5
Can't asked for better care.
November 16, 2024
5
Dr Hammen was great and so were the nurses. I was very well cared for!
November 14, 2024
5
Great experience!
November 8, 2024
5
Great staff and professional.
November 2, 2024
5
Was able to explain my questions and to receive full answers on my journey of health care with WellStar.
November 3, 2024
5
Every staff member was extremely friendly and helpful. Great experience!
October 6, 2024
5
The staff was super nice and helpful and Dr. Hammen was incredible and comforting and very thorough in his description of the procedure that's going to be done and my overall experience was amazing.
September 22, 2024
5
Great doctor shows that he cares about his patients explains everything to me
September 21, 2024
5
I really trust Dr. Hammen.
September 1, 2024
5
Dr Hammen is a wi detail doctor and surgeon. I appreciated his knowledge and understanding. I was comfortable during my appt.
August 31, 2024
5
Everything was successful. I appreciate it. Bye-bye.
August 25, 2024
5
I thought he was a very good doctor. It would be great if Wellstar would try to KEEP doctors like this. Wellstar seems to loose their good doctors. A lot.
August 17, 2024
5
Keep up the good work.
August 16, 2024
5
The doctor and his staff are outstanding.
August 15, 2024
5
It was very nice to attend Wellstar. Everyone is very kind.
August 12, 2024
5
The Entire staff at WellStar is fantastic
August 9, 2024
5
Dr. Hammen and his staff, including the staff at the Wellstar Cobb Hospital during and after my procedure, also the follow-up call that Dr. Hammen and his nurse set up for me was one of the best experiences I've had with an outpatient procedure that was a preventative with it being my first time. I really appreciate the bedside manner and the follow-up calls and the follow-up from the after the procedure. I would highly recommend not only Dr. Hammen and his staff, but also Wellstar in general. Thank you. Have a good day.
August 11, 2024
5
Very helpful and informative, which is what you need when you're dealing with such topics.
August 9, 2024
5
I was very impressed with Dr. Hammen. He made an uncomfortable situation, as comfortable as possible. He listened, and took his time educating me on my condition and treatment options. Very appreciative of Dr. Hammen, and his staff, for a great visit!
August 3, 2024
5
Dr Hammen was excellent! Provided the consultation and information I was looking for.
July 23, 2024
5
The entire Wellstar team couldn't have been better. From the original call addressing and scheduling of my referral, check-in, pre and post op care and Dr Hammen's interactions. The follow-up card was a nice touch! I've heard stories about poor healthcare treatment from others, so I was a bit apprehensive about this procedure. But the Wellstar team couldn't have been better! Thanks
July 13, 2024
5
Nothing much that's thank you for everything.
July 13, 2024
5
Great and friendly team. Than you
July 2, 2024
5
I am satisfied so far with the medical services provide by your Institution. From the desk of the receptionist to the care of the physician, everything went very well. I do congratulate the Staff.
June 29, 2024
5
Great doctor and great staff
June 21, 2024
4
This was my first time meeting this doctor. He is so kind and the best doctor patient relationship I have every experienced
September 28, 2024
4
This was my first time meeting this doctor. He is so kind and the best doctor patient relationship I have every experienced
September 28, 2024
5
Dr. Hammen is a great doctor!!!
November 22, 2024
5
I m very happy with the results and the great service provided to me many thanks
November 22, 2024
5
I was very impressed by your service thank you.
November 16, 2024
5
Great people and felt like I got quality care and info about my health problem.
November 16, 2024
5
Can't asked for better care.
November 16, 2024
5
Dr Hammen was great and so were the nurses. I was very well cared for!
November 14, 2024
5
Great experience!
November 8, 2024
5
Great staff and professional.
November 2, 2024
5
Was able to explain my questions and to receive full answers on my journey of health care with WellStar.
November 3, 2024
5
Every staff member was extremely friendly and helpful. Great experience!
October 6, 2024
5
The staff was super nice and helpful and Dr. Hammen was incredible and comforting and very thorough in his description of the procedure that's going to be done and my overall experience was amazing.
September 22, 2024
5
Great doctor shows that he cares about his patients explains everything to me
September 21, 2024
5
I really trust Dr. Hammen.
September 1, 2024
5
Dr Hammen is a wi detail doctor and surgeon. I appreciated his knowledge and understanding. I was comfortable during my appt.
August 31, 2024
5
Everything was successful. I appreciate it. Bye-bye.
August 25, 2024
5
I thought he was a very good doctor. It would be great if Wellstar would try to KEEP doctors like this. Wellstar seems to loose their good doctors. A lot.
August 17, 2024
5
Keep up the good work.
August 16, 2024
5
The doctor and his staff are outstanding.
August 15, 2024
5
It was very nice to attend Wellstar. Everyone is very kind.
August 12, 2024
5
The Entire staff at WellStar is fantastic
August 9, 2024
5
Dr. Hammen and his staff, including the staff at the Wellstar Cobb Hospital during and after my procedure, also the follow-up call that Dr. Hammen and his nurse set up for me was one of the best experiences I've had with an outpatient procedure that was a preventative with it being my first time. I really appreciate the bedside manner and the follow-up calls and the follow-up from the after the procedure. I would highly recommend not only Dr. Hammen and his staff, but also Wellstar in general. Thank you. Have a good day.
August 11, 2024
5
Very helpful and informative, which is what you need when you're dealing with such topics.
August 9, 2024
5
I was very impressed with Dr. Hammen. He made an uncomfortable situation, as comfortable as possible. He listened, and took his time educating me on my condition and treatment options. Very appreciative of Dr. Hammen, and his staff, for a great visit!
August 3, 2024
5
Dr Hammen was excellent! Provided the consultation and information I was looking for.
July 23, 2024
5
The entire Wellstar team couldn't have been better. From the original call addressing and scheduling of my referral, check-in, pre and post op care and Dr Hammen's interactions. The follow-up card was a nice touch! I've heard stories about poor healthcare treatment from others, so I was a bit apprehensive about this procedure. But the Wellstar team couldn't have been better! Thanks
July 13, 2024
5
Nothing much that's thank you for everything.
July 13, 2024
5
Great and friendly team. Than you
July 2, 2024
5
I am satisfied so far with the medical services provide by your Institution. From the desk of the receptionist to the care of the physician, everything went very well. I do congratulate the Staff.
June 29, 2024
5
Great doctor and great staff
June 21, 2024
5
Dr. Hammen is a great doctor!!!
November 22, 2024
5
I m very happy with the results and the great service provided to me many thanks
November 22, 2024
5
I was very impressed by your service thank you.
November 16, 2024
5
Can't asked for better care.
November 16, 2024
5
Great people and felt like I got quality care and info about my health problem.
November 16, 2024
5
Dr Hammen was great and so were the nurses. I was very well cared for!
November 14, 2024
5
Great experience!
November 8, 2024
5
Was able to explain my questions and to receive full answers on my journey of health care with WellStar.
November 3, 2024
5
Great staff and professional.
November 2, 2024
5
Every staff member was extremely friendly and helpful. Great experience!
October 6, 2024
4
This was my first time meeting this doctor. He is so kind and the best doctor patient relationship I have every experienced
September 28, 2024
5
The staff was super nice and helpful and Dr. Hammen was incredible and comforting and very thorough in his description of the procedure that's going to be done and my overall experience was amazing.
September 22, 2024
5
Great doctor shows that he cares about his patients explains everything to me
September 21, 2024
5
I really trust Dr. Hammen.
September 1, 2024
5
Dr Hammen is a wi detail doctor and surgeon. I appreciated his knowledge and understanding. I was comfortable during my appt.
August 31, 2024
5
Everything was successful. I appreciate it. Bye-bye.
August 25, 2024
5
I thought he was a very good doctor. It would be great if Wellstar would try to KEEP doctors like this. Wellstar seems to loose their good doctors. A lot.
August 17, 2024
5
Keep up the good work.
August 16, 2024
5
The doctor and his staff are outstanding.
August 15, 2024
5
It was very nice to attend Wellstar. Everyone is very kind.
August 12, 2024
5
Dr. Hammen and his staff, including the staff at the Wellstar Cobb Hospital during and after my procedure, also the follow-up call that Dr. Hammen and his nurse set up for me was one of the best experiences I've had with an outpatient procedure that was a preventative with it being my first time. I really appreciate the bedside manner and the follow-up calls and the follow-up from the after the procedure. I would highly recommend not only Dr. Hammen and his staff, but also Wellstar in general. Thank you. Have a good day.
August 11, 2024
5
The Entire staff at WellStar is fantastic
August 9, 2024
5
Very helpful and informative, which is what you need when you're dealing with such topics.
August 9, 2024
5
I was very impressed with Dr. Hammen. He made an uncomfortable situation, as comfortable as possible. He listened, and took his time educating me on my condition and treatment options. Very appreciative of Dr. Hammen, and his staff, for a great visit!
August 3, 2024
5
Dr Hammen was excellent! Provided the consultation and information I was looking for.
July 23, 2024
5
The entire Wellstar team couldn't have been better. From the original call addressing and scheduling of my referral, check-in, pre and post op care and Dr Hammen's interactions. The follow-up card was a nice touch! I've heard stories about poor healthcare treatment from others, so I was a bit apprehensive about this procedure. But the Wellstar team couldn't have been better! Thanks
July 13, 2024
5
Nothing much that's thank you for everything.
July 13, 2024
5
Great and friendly team. Than you
July 2, 2024
5
I am satisfied so far with the medical services provide by your Institution. From the desk of the receptionist to the care of the physician, everything went very well. I do congratulate the Staff.
June 29, 2024
5
Great doctor and great staff
June 21, 2024
5
Great doctor and great staff
June 21, 2024
5
I am satisfied so far with the medical services provide by your Institution. From the desk of the receptionist to the care of the physician, everything went very well. I do congratulate the Staff.
June 29, 2024
5
Great and friendly team. Than you
July 2, 2024
5
Nothing much that's thank you for everything.
July 13, 2024
5
The entire Wellstar team couldn't have been better. From the original call addressing and scheduling of my referral, check-in, pre and post op care and Dr Hammen's interactions. The follow-up card was a nice touch! I've heard stories about poor healthcare treatment from others, so I was a bit apprehensive about this procedure. But the Wellstar team couldn't have been better! Thanks
July 13, 2024
5
Dr Hammen was excellent! Provided the consultation and information I was looking for.
July 23, 2024
5
I was very impressed with Dr. Hammen. He made an uncomfortable situation, as comfortable as possible. He listened, and took his time educating me on my condition and treatment options. Very appreciative of Dr. Hammen, and his staff, for a great visit!
August 3, 2024
5
Very helpful and informative, which is what you need when you're dealing with such topics.
August 9, 2024
5
The Entire staff at WellStar is fantastic
August 9, 2024
5
Dr. Hammen and his staff, including the staff at the Wellstar Cobb Hospital during and after my procedure, also the follow-up call that Dr. Hammen and his nurse set up for me was one of the best experiences I've had with an outpatient procedure that was a preventative with it being my first time. I really appreciate the bedside manner and the follow-up calls and the follow-up from the after the procedure. I would highly recommend not only Dr. Hammen and his staff, but also Wellstar in general. Thank you. Have a good day.
August 11, 2024
5
It was very nice to attend Wellstar. Everyone is very kind.
August 12, 2024
5
The doctor and his staff are outstanding.
August 15, 2024
5
Keep up the good work.
August 16, 2024
5
I thought he was a very good doctor. It would be great if Wellstar would try to KEEP doctors like this. Wellstar seems to loose their good doctors. A lot.
August 17, 2024
5
Everything was successful. I appreciate it. Bye-bye.
August 25, 2024
5
Dr Hammen is a wi detail doctor and surgeon. I appreciated his knowledge and understanding. I was comfortable during my appt.
August 31, 2024
5
I really trust Dr. Hammen.
September 1, 2024
5
Great doctor shows that he cares about his patients explains everything to me
September 21, 2024
5
The staff was super nice and helpful and Dr. Hammen was incredible and comforting and very thorough in his description of the procedure that's going to be done and my overall experience was amazing.
September 22, 2024
4
This was my first time meeting this doctor. He is so kind and the best doctor patient relationship I have every experienced
September 28, 2024
5
Every staff member was extremely friendly and helpful. Great experience!
October 6, 2024
5
Great staff and professional.
November 2, 2024
5
Was able to explain my questions and to receive full answers on my journey of health care with WellStar.
November 3, 2024
5
Great experience!
November 8, 2024
5
Dr Hammen was great and so were the nurses. I was very well cared for!
November 14, 2024
5
Great people and felt like I got quality care and info about my health problem.
November 16, 2024
5
Can't asked for better care.
November 16, 2024
5
I was very impressed by your service thank you.
November 16, 2024
5
I m very happy with the results and the great service provided to me many thanks
November 22, 2024
5
Dr. Hammen is a great doctor!!!
November 22, 2024
Publications and Articles
CJCare
Former former major league baseball player CJ Stewart didn’t want to have a colonoscopy. He dreaded the liquid diet. The needles. The IV sedation. The possibility of cancer.
So how did CJ face his fears—and what happened next?
On track for a heart attack
It started in 2020 when CJ scouted a new primary care provider. He chose Dr. Randy Hines II, Wellstar Primary Care. He said Dr. Hines was the most straightforward doctor he had ever visited.
“I was overweight,” CJ remembered. “My health changed positively because Dr. Hines said things to me in a very positive way. He was direct with me and that helped save my life.”
Dr. Hines learned CJ’s father was a diabetic and had quadruple bypass heart surgery to treat a heart attack. CJ remembered him saying, “‘You’re on track to have the same thing but you can control it.’”
CJ admitted that he had a daily dose of French fries and two peanut butter and jelly sandwiches before bed. Dr. Hines challenged him to rethink his relationship with food if he wanted to see his daughters walk down the aisle one day. It was tough talk and it meant something.
“I really love my daughters!” CJ said. “It made me change.”
As a result, he modified his diet, took up running and lost 45 pounds.
Preventing colorectal cancer
Then CJ’s mom revealed a family history of colon cancer.
“My wife and daughters were like, ‘We really need you to go get checked to make sure you’re good,’” he said.
Because of his fears related to the colonoscopy, CJ wanted to have Cologuard, an at-home screening test for colon cancer. But Dr. Hines recommended the 47-year-old have a preventive colonoscopy screening instead, explaining that if pre-cancerous polyps are detected during the procedure, they can be removed before becoming cancerous.
“I didn’t want to hear it,” CJ laughed. “But hearing that from a fellow African American man, I trusted that it was the right thing to do.”
