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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
Education & Training
Mercer University
Degree
Doctor of Medicine
Residency
Memorial Medical Center
Fellowship
University of Texas Health Science Center
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 188 patient ratings
Treated me with courtesy and respect
Shared easy to understand information
I'd recommend this provider to family and friends
I'd recommend this practice 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
very caring and patient and knowledgeable not only the doctor but the staff as well appointment was on time and i was not rushed facilities were comfortable and clean
July 4, 2026
5
Yes, from the beginning of the receptionist check-in to the various, I was extremely impressed, and everybody was so nice and professional. And I love Dr. Patrick all my visits. This is my first time having this experience with me with him, and he is everything that he is supposed to be for his skills. And I'm grateful to have him. So thank you so much.
July 5, 2026
5
Only critique i would say is the friendliness of the lady at the rear check out across from the nurse's station. I didn't get her name, but she was kind of rude, a little argumentative especially, when I ask for a work excuse. She also cut me off when I tried to explain what the doctor said to me about scheduling. Other than that, everyone with the exception of her was excellent!
July 3, 2026
5
They always treat me really well every time I come
June 27, 2026
5
Dr. Hammen was amazing!! The staff was friendly and courteous!!
June 26, 2026
5
I felt appreciated and comfortable at my appointment. Dr. Hammen was most efficient with details.
June 19, 2026
5
Very professional
June 16, 2026
5
Staff is amazing! Answered questions and eased my anxiety and concerns.
June 14, 2026
5
The staff were very friendly and courteous. I felt comfortable in the office.
June 5, 2026
5
My experience was pleasant and everyone was professional, and helpful.
May 30, 2026
5
I read good things about Dr. Hammen, and though it was a long drive for me to see him, I'm very glad that I did. Trusted him completely upon meeting him and found my consultation to be highly educational, not rushed, and came away with a strong game plan that resorted to surgery as a last option. That's saying something coming from a surgeon. Came away highly impressed and feeling good about my treatment plan.
May 30, 2026
5
Thank you!
May 30, 2026
5
Everyone was extremely nice and helpful
May 30, 2026
5
Dr Hammen and staff are the best
May 16, 2026
5
Dr. Hammen was warm and friendly. He explained everything that I needed to know about my problem. I trust him to do my surgery.
May 9, 2026
5
Dr Hammond has taken great care of me and I've recommended him to all my friends. Thank you Dr
May 2, 2026
5
Dr hammen is great and the nurse ,receptionist all Exellent thanks
April 10, 2026
5
Very nice staff makes you feel rite at home
April 3, 2026
5
I received prompt and professional service throughout my visit.
April 2, 2026
5
Definitely one of the nicest doctors I've ever had. His nurse was also the sweetest. Very pleasant experience.
March 13, 2026
5
Dr. Hammen and his staff were wonderful. Thank you.
March 9, 2026
5
Wonderful friendly and attentive staff and doctor!! I felt right at home!!
March 4, 2026
5
Great medical staff, nurse and doctor.
March 1, 2026
5
I was very impressed with the entire facility from the moment I walked in. The women that greeted me were extremely pleasant and helpful. The people who checked me in upstairs at the doctor's office, again, very professional, very friendly, very informative. And then the nurse was absolutely wonderful. The doctor was fantastic. So overall, every person I encountered showed that they genuinely cared about me as a person and for my health.
February 28, 2026
5
The support staff exhibited exceptional care and support, significantly contributing to the success of Dr. Hammens' office. While the doctor maintained an optimistic outlook, he expressed concern regarding my prognosis. I am confident that he will devise the most effective course of action to ensure my well-being throughout my health journey.
February 26, 2026
5
Best experience I've had with a doctor, nurse staff, everything in maybe ever.
February 24, 2026
5
Dr. Patrick Hammen and his staff were very professional and courteous. It was an amazing and very informative experience.
February 21, 2026
5
Staff, Nurses, and Doctors were perfect!
February 16, 2026
5
Always a pleasant experience when I visit the office, very kind and welcoming staff .
February 12, 2026
5
Foi um atendimento maravilhoso, desde a recepcionista, enfermeira, médico e tradutores! Agradeço muito pela atenção
February 8, 2026
5
very caring and patient and knowledgeable not only the doctor but the staff as well appointment was on time and i was not rushed facilities were comfortable and clean
July 4, 2026
5
Yes, from the beginning of the receptionist check-in to the various, I was extremely impressed, and everybody was so nice and professional. And I love Dr. Patrick all my visits. This is my first time having this experience with me with him, and he is everything that he is supposed to be for his skills. And I'm grateful to have him. So thank you so much.
July 5, 2026
5
Only critique i would say is the friendliness of the lady at the rear check out across from the nurse's station. I didn't get her name, but she was kind of rude, a little argumentative especially, when I ask for a work excuse. She also cut me off when I tried to explain what the doctor said to me about scheduling. Other than that, everyone with the exception of her was excellent!
July 3, 2026
5
They always treat me really well every time I come
June 27, 2026
5
Dr. Hammen was amazing!! The staff was friendly and courteous!!
June 26, 2026
5
I felt appreciated and comfortable at my appointment. Dr. Hammen was most efficient with details.
June 19, 2026
5
Very professional
June 16, 2026
5
Staff is amazing! Answered questions and eased my anxiety and concerns.
June 14, 2026
5
The staff were very friendly and courteous. I felt comfortable in the office.
June 5, 2026
5
My experience was pleasant and everyone was professional, and helpful.
May 30, 2026
5
I read good things about Dr. Hammen, and though it was a long drive for me to see him, I'm very glad that I did. Trusted him completely upon meeting him and found my consultation to be highly educational, not rushed, and came away with a strong game plan that resorted to surgery as a last option. That's saying something coming from a surgeon. Came away highly impressed and feeling good about my treatment plan.
May 30, 2026
5
Thank you!
May 30, 2026
5
Everyone was extremely nice and helpful
May 30, 2026
5
Dr Hammen and staff are the best
May 16, 2026
5
Dr. Hammen was warm and friendly. He explained everything that I needed to know about my problem. I trust him to do my surgery.
May 9, 2026
5
Dr Hammond has taken great care of me and I've recommended him to all my friends. Thank you Dr
May 2, 2026
5
Dr hammen is great and the nurse ,receptionist all Exellent thanks
April 10, 2026
5
Very nice staff makes you feel rite at home
April 3, 2026
5
I received prompt and professional service throughout my visit.
April 2, 2026
5
Definitely one of the nicest doctors I've ever had. His nurse was also the sweetest. Very pleasant experience.
March 13, 2026
5
Dr. Hammen and his staff were wonderful. Thank you.
March 9, 2026
5
Wonderful friendly and attentive staff and doctor!! I felt right at home!!
March 4, 2026
5
Great medical staff, nurse and doctor.
March 1, 2026
5
I was very impressed with the entire facility from the moment I walked in. The women that greeted me were extremely pleasant and helpful. The people who checked me in upstairs at the doctor's office, again, very professional, very friendly, very informative. And then the nurse was absolutely wonderful. The doctor was fantastic. So overall, every person I encountered showed that they genuinely cared about me as a person and for my health.
February 28, 2026
5
The support staff exhibited exceptional care and support, significantly contributing to the success of Dr. Hammens' office. While the doctor maintained an optimistic outlook, he expressed concern regarding my prognosis. I am confident that he will devise the most effective course of action to ensure my well-being throughout my health journey.
February 26, 2026
5
Best experience I've had with a doctor, nurse staff, everything in maybe ever.
February 24, 2026
5
Dr. Patrick Hammen and his staff were very professional and courteous. It was an amazing and very informative experience.
February 21, 2026
5
Staff, Nurses, and Doctors were perfect!
February 16, 2026
5
Always a pleasant experience when I visit the office, very kind and welcoming staff .
February 12, 2026
5
Foi um atendimento maravilhoso, desde a recepcionista, enfermeira, médico e tradutores! Agradeço muito pela atenção
February 8, 2026
5
very caring and patient and knowledgeable not only the doctor but the staff as well appointment was on time and i was not rushed facilities were comfortable and clean
July 4, 2026
5
Yes, from the beginning of the receptionist check-in to the various, I was extremely impressed, and everybody was so nice and professional. And I love Dr. Patrick all my visits. This is my first time having this experience with me with him, and he is everything that he is supposed to be for his skills. And I'm grateful to have him. So thank you so much.
July 5, 2026
5
Only critique i would say is the friendliness of the lady at the rear check out across from the nurse's station. I didn't get her name, but she was kind of rude, a little argumentative especially, when I ask for a work excuse. She also cut me off when I tried to explain what the doctor said to me about scheduling. Other than that, everyone with the exception of her was excellent!
July 3, 2026
5
They always treat me really well every time I come
June 27, 2026
5
Dr. Hammen was amazing!! The staff was friendly and courteous!!
June 26, 2026
5
I felt appreciated and comfortable at my appointment. Dr. Hammen was most efficient with details.
June 19, 2026
5
Very professional
June 16, 2026
5
Staff is amazing! Answered questions and eased my anxiety and concerns.
June 14, 2026
5
The staff were very friendly and courteous. I felt comfortable in the office.
June 5, 2026
5
My experience was pleasant and everyone was professional, and helpful.
May 30, 2026
5
I read good things about Dr. Hammen, and though it was a long drive for me to see him, I'm very glad that I did. Trusted him completely upon meeting him and found my consultation to be highly educational, not rushed, and came away with a strong game plan that resorted to surgery as a last option. That's saying something coming from a surgeon. Came away highly impressed and feeling good about my treatment plan.
May 30, 2026
5
Thank you!
May 30, 2026
5
Everyone was extremely nice and helpful
May 30, 2026
5
Dr Hammen and staff are the best
May 16, 2026
5
Dr. Hammen was warm and friendly. He explained everything that I needed to know about my problem. I trust him to do my surgery.
May 9, 2026
5
Dr Hammond has taken great care of me and I've recommended him to all my friends. Thank you Dr
May 2, 2026
5
Dr hammen is great and the nurse ,receptionist all Exellent thanks
April 10, 2026
5
Very nice staff makes you feel rite at home
April 3, 2026
5
I received prompt and professional service throughout my visit.
April 2, 2026
5
Definitely one of the nicest doctors I've ever had. His nurse was also the sweetest. Very pleasant experience.
March 13, 2026
5
Dr. Hammen and his staff were wonderful. Thank you.
March 9, 2026
5
Wonderful friendly and attentive staff and doctor!! I felt right at home!!
March 4, 2026
5
Great medical staff, nurse and doctor.
March 1, 2026
5
I was very impressed with the entire facility from the moment I walked in. The women that greeted me were extremely pleasant and helpful. The people who checked me in upstairs at the doctor's office, again, very professional, very friendly, very informative. And then the nurse was absolutely wonderful. The doctor was fantastic. So overall, every person I encountered showed that they genuinely cared about me as a person and for my health.
February 28, 2026
5
The support staff exhibited exceptional care and support, significantly contributing to the success of Dr. Hammens' office. While the doctor maintained an optimistic outlook, he expressed concern regarding my prognosis. I am confident that he will devise the most effective course of action to ensure my well-being throughout my health journey.
February 26, 2026
5
Best experience I've had with a doctor, nurse staff, everything in maybe ever.
February 24, 2026
5
Dr. Patrick Hammen and his staff were very professional and courteous. It was an amazing and very informative experience.
February 21, 2026
5
Staff, Nurses, and Doctors were perfect!
February 16, 2026
5
Always a pleasant experience when I visit the office, very kind and welcoming staff .
February 12, 2026
5
Foi um atendimento maravilhoso, desde a recepcionista, enfermeira, médico e tradutores! Agradeço muito pela atenção
February 8, 2026
5
Yes, from the beginning of the receptionist check-in to the various, I was extremely impressed, and everybody was so nice and professional. And I love Dr. Patrick all my visits. This is my first time having this experience with me with him, and he is everything that he is supposed to be for his skills. And I'm grateful to have him. So thank you so much.
July 5, 2026
5
very caring and patient and knowledgeable not only the doctor but the staff as well appointment was on time and i was not rushed facilities were comfortable and clean
July 4, 2026
5
Only critique i would say is the friendliness of the lady at the rear check out across from the nurse's station. I didn't get her name, but she was kind of rude, a little argumentative especially, when I ask for a work excuse. She also cut me off when I tried to explain what the doctor said to me about scheduling. Other than that, everyone with the exception of her was excellent!
July 3, 2026
5
They always treat me really well every time I come
June 27, 2026
5
Dr. Hammen was amazing!! The staff was friendly and courteous!!
June 26, 2026
5
I felt appreciated and comfortable at my appointment. Dr. Hammen was most efficient with details.
June 19, 2026
5
Very professional
June 16, 2026
5
Staff is amazing! Answered questions and eased my anxiety and concerns.
June 14, 2026
5
The staff were very friendly and courteous. I felt comfortable in the office.
June 5, 2026
5
I read good things about Dr. Hammen, and though it was a long drive for me to see him, I'm very glad that I did. Trusted him completely upon meeting him and found my consultation to be highly educational, not rushed, and came away with a strong game plan that resorted to surgery as a last option. That's saying something coming from a surgeon. Came away highly impressed and feeling good about my treatment plan.
May 30, 2026
5
Thank you!
May 30, 2026
5
My experience was pleasant and everyone was professional, and helpful.
May 30, 2026
5
Everyone was extremely nice and helpful
May 30, 2026
5
Dr Hammen and staff are the best
May 16, 2026
5
Dr. Hammen was warm and friendly. He explained everything that I needed to know about my problem. I trust him to do my surgery.
May 9, 2026
5
Dr Hammond has taken great care of me and I've recommended him to all my friends. Thank you Dr
May 2, 2026
5
Dr hammen is great and the nurse ,receptionist all Exellent thanks
April 10, 2026
5
Very nice staff makes you feel rite at home
April 3, 2026
5
I received prompt and professional service throughout my visit.
April 2, 2026
5
Definitely one of the nicest doctors I've ever had. His nurse was also the sweetest. Very pleasant experience.
March 13, 2026
5
Dr. Hammen and his staff were wonderful. Thank you.
March 9, 2026
5
Wonderful friendly and attentive staff and doctor!! I felt right at home!!
March 4, 2026
5
Great medical staff, nurse and doctor.
March 1, 2026
5
I was very impressed with the entire facility from the moment I walked in. The women that greeted me were extremely pleasant and helpful. The people who checked me in upstairs at the doctor's office, again, very professional, very friendly, very informative. And then the nurse was absolutely wonderful. The doctor was fantastic. So overall, every person I encountered showed that they genuinely cared about me as a person and for my health.
February 28, 2026
5
The support staff exhibited exceptional care and support, significantly contributing to the success of Dr. Hammens' office. While the doctor maintained an optimistic outlook, he expressed concern regarding my prognosis. I am confident that he will devise the most effective course of action to ensure my well-being throughout my health journey.
February 26, 2026
5
Best experience I've had with a doctor, nurse staff, everything in maybe ever.
February 24, 2026
5
Dr. Patrick Hammen and his staff were very professional and courteous. It was an amazing and very informative experience.
February 21, 2026
5
Staff, Nurses, and Doctors were perfect!
February 16, 2026
5
Always a pleasant experience when I visit the office, very kind and welcoming staff .
February 12, 2026
5
Foi um atendimento maravilhoso, desde a recepcionista, enfermeira, médico e tradutores! Agradeço muito pela atenção
February 8, 2026
5
Foi um atendimento maravilhoso, desde a recepcionista, enfermeira, médico e tradutores! Agradeço muito pela atenção
February 8, 2026
5
Always a pleasant experience when I visit the office, very kind and welcoming staff .
February 12, 2026
5
Staff, Nurses, and Doctors were perfect!
February 16, 2026
5
Dr. Patrick Hammen and his staff were very professional and courteous. It was an amazing and very informative experience.
February 21, 2026
5
Best experience I've had with a doctor, nurse staff, everything in maybe ever.
February 24, 2026
5
The support staff exhibited exceptional care and support, significantly contributing to the success of Dr. Hammens' office. While the doctor maintained an optimistic outlook, he expressed concern regarding my prognosis. I am confident that he will devise the most effective course of action to ensure my well-being throughout my health journey.
February 26, 2026
5
I was very impressed with the entire facility from the moment I walked in. The women that greeted me were extremely pleasant and helpful. The people who checked me in upstairs at the doctor's office, again, very professional, very friendly, very informative. And then the nurse was absolutely wonderful. The doctor was fantastic. So overall, every person I encountered showed that they genuinely cared about me as a person and for my health.
February 28, 2026
5
Great medical staff, nurse and doctor.
March 1, 2026
5
Wonderful friendly and attentive staff and doctor!! I felt right at home!!
March 4, 2026
5
Dr. Hammen and his staff were wonderful. Thank you.
March 9, 2026
5
Definitely one of the nicest doctors I've ever had. His nurse was also the sweetest. Very pleasant experience.
March 13, 2026
5
I received prompt and professional service throughout my visit.
April 2, 2026
5
Very nice staff makes you feel rite at home
April 3, 2026
5
Dr hammen is great and the nurse ,receptionist all Exellent thanks
April 10, 2026
5
Dr Hammond has taken great care of me and I've recommended him to all my friends. Thank you Dr
May 2, 2026
5
Dr. Hammen was warm and friendly. He explained everything that I needed to know about my problem. I trust him to do my surgery.
May 9, 2026
5
Dr Hammen and staff are the best
May 16, 2026
5
Everyone was extremely nice and helpful
May 30, 2026
5
My experience was pleasant and everyone was professional, and helpful.
May 30, 2026
5
Thank you!
May 30, 2026
5
I read good things about Dr. Hammen, and though it was a long drive for me to see him, I'm very glad that I did. Trusted him completely upon meeting him and found my consultation to be highly educational, not rushed, and came away with a strong game plan that resorted to surgery as a last option. That's saying something coming from a surgeon. Came away highly impressed and feeling good about my treatment plan.
May 30, 2026
5
The staff were very friendly and courteous. I felt comfortable in the office.
June 5, 2026
5
Staff is amazing! Answered questions and eased my anxiety and concerns.
June 14, 2026
5
Very professional
June 16, 2026
5
I felt appreciated and comfortable at my appointment. Dr. Hammen was most efficient with details.
June 19, 2026
5
Dr. Hammen was amazing!! The staff was friendly and courteous!!
June 26, 2026
5
They always treat me really well every time I come
June 27, 2026
5
Only critique i would say is the friendliness of the lady at the rear check out across from the nurse's station. I didn't get her name, but she was kind of rude, a little argumentative especially, when I ask for a work excuse. She also cut me off when I tried to explain what the doctor said to me about scheduling. Other than that, everyone with the exception of her was excellent!
July 3, 2026
5
very caring and patient and knowledgeable not only the doctor but the staff as well appointment was on time and i was not rushed facilities were comfortable and clean
July 4, 2026
5
Yes, from the beginning of the receptionist check-in to the various, I was extremely impressed, and everybody was so nice and professional. And I love Dr. Patrick all my visits. This is my first time having this experience with me with him, and he is everything that he is supposed to be for his skills. And I'm grateful to have him. So thank you so much.
July 5, 2026
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.”
