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Dr. Patrick Hammen received his bachelor of science in psychology from Furman University in Greenville, SC. He received his medical degree from Mercer University School of Medicine. He completed his general surgery residency at Memorial Medical Center and completed his colon and rectal surgery fellowship at the University of Texas Health Sciences Foundation.
Dr. Hammen is board-certified by the American Board of Surgery and the American Board of Colon & Rectal Surgery. He is a member of the American Medical Association, the Medical Association of Georgia, the Georgia Medical Society, the Southern Medical Association, the American College of Surgeons Fellow (Elected), the Crohn’s & Colitis Foundation of America, the American Society of Colon & Rectal Surgeons Fellow (Elected), and the Piedmont Society of Colon & Rectal Surgeons Member (Elected).
Dr. Hammen performs surgery and procedures at Wellstar Cobb Medical Center and Wellstar Vinings Health Park Outpatient Surgery Center.
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
4.8
Based on 204 patient ratings
I'd recommend this practice to family and friends
4.90
I'd recommend this provider to family and friends
4.89
Listened to me carefully
4.88
Shared the right amount of information
4.83
Earned my trust
4.73
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
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
The Nurse was very nice and showed concern for my situation. Dr. Hammen was very knowledgeable of my situation and explain in great detail on how the isuue occur and the recommendations to handle it in the very near future.
June 18, 2024
5
Dr. Hammen is easy to understand and is very nice. The people in his office are all polite. I feel I am in good hands.
June 10, 2024
5
My experience was great! The front staff and Doctor were very kind and listened to everything I wanted to talk about.
June 8, 2024
5
Excellent reception. Visit went well. And good departure. 4.5-5 star visit
May 17, 2024
5
Great staff. . . Admin & medical
May 12, 2024
5
The patient access person was so patient with me on the phone while updating my insurance and went over and beyond the call of duty to make sure it was verified prior to my appointment,she even called me back for reassurance after that so that I would have a successful visit . She even made me a copy of the of my verification for future reference while we wait for our cards to arrive . She definitely should be rewarded and givena supersized raise for her excellent customer service skills !!! The Dr is amazing !!
May 11, 2024
5
Dr. Hammen and his staff are great.
May 12, 2024
5
He's great
May 9, 2024
5
Dr Hammen is one of a kind Dr. With a staff just like him ..
May 9, 2024
5
Great experience
May 9, 2024
5
I walked out with an understanding of the problem, a treatment plan, & an accurate diagnosis. I appreciated the plan to exhaust all non-surgical options with high hopes of avoiding surgical interventions all-together, when I'm high-risk!
May 4, 2024
5
I really enjoyed Dr. Hammen. He took his time. He was communicated very well and never felt rushed. He showed a lot of care and explained everything where I understood the process from the very beginning to even post-surgery. And I would highly, highly recommend Dr. Hammen for others. Thank you.
May 5, 2024
5
Dr Hammen & staff were very professional, courteous, and very attentive to my needs!!!!!
May 3, 2024
5
Everything was great.
April 27, 2024
5
Superb staff that is warm and welcoming. Everyone is attentive and seems to work together to create a well-run office, Getting scheduled for surgery was surprisingly fast and very professional with plenty of follow-up and communication. Highly recommend Wellstar Vinings Colorectal Surgery for excellent care.
April 27, 2024
5
Dr Hammen was very nice and explained the problem, what led to the problem, and hopefully, how to fix the problem. We liked him very much.
April 26, 2024
5
Dr. Hammen is the nicest doctor I have ever encountered at Wellstar or anywhere else.
April 12, 2024
5
My experience with this appointment was awesome. The doctor, Dr. Hammen, had an excellent bedside manner and so did all of the Wellstar
April 17, 2024
5
Dr Hammen's exceptional professionalism, care and concern, and attention to detail inspires my confidence. He is especially attentive to my wartime long term effects. I'm very blessed to be in his care.
April 6, 2024
5
I felt very comfortable and our questions were all answered.Things went well with my visit to Dr.Hammen.Thanks to all at office!
March 31, 2024
5
Dr. HAMMEN is wonderful.
March 25, 2024
5
Medical staff was super helpful and supportive throughout the whole process - from the intake process to the check in process, all the way through the medical procedure. The entire medical staff was top notch, and I especially appreciated the follow up and the card they sent me afterwards. I couldn't have asked for a better experience. Thank you.
March 16, 2024
4
The doctor is a very good person, he treated us very well, he is very kind and professional and I highly recommend him. God bless the doctor.
March 13, 2024
5
Dr Hammen and his staff are great
March 2, 2024
5
I was pleasantly surprised. Dr. Hammen and his staff made a scary situation seem not scary at all. I was wowed with this experience.
March 2, 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
The Nurse was very nice and showed concern for my situation. Dr. Hammen was very knowledgeable of my situation and explain in great detail on how the isuue occur and the recommendations to handle it in the very near future.
June 18, 2024
5
Dr. Hammen is easy to understand and is very nice. The people in his office are all polite. I feel I am in good hands.
June 10, 2024
5
My experience was great! The front staff and Doctor were very kind and listened to everything I wanted to talk about.
June 8, 2024
5
Excellent reception. Visit went well. And good departure. 4.5-5 star visit
May 17, 2024
5
Great staff. . . Admin & medical
May 12, 2024
5
The patient access person was so patient with me on the phone while updating my insurance and went over and beyond the call of duty to make sure it was verified prior to my appointment,she even called me back for reassurance after that so that I would have a successful visit . She even made me a copy of the of my verification for future reference while we wait for our cards to arrive . She definitely should be rewarded and givena supersized raise for her excellent customer service skills !!! The Dr is amazing !!
May 11, 2024
5
Dr. Hammen and his staff are great.
May 12, 2024
5
He's great
May 9, 2024
5
Dr Hammen is one of a kind Dr. With a staff just like him ..
May 9, 2024
5
Great experience
May 9, 2024
5
I walked out with an understanding of the problem, a treatment plan, & an accurate diagnosis. I appreciated the plan to exhaust all non-surgical options with high hopes of avoiding surgical interventions all-together, when I'm high-risk!
May 4, 2024
5
I really enjoyed Dr. Hammen. He took his time. He was communicated very well and never felt rushed. He showed a lot of care and explained everything where I understood the process from the very beginning to even post-surgery. And I would highly, highly recommend Dr. Hammen for others. Thank you.
May 5, 2024
5
Dr Hammen & staff were very professional, courteous, and very attentive to my needs!!!!!
May 3, 2024
5
Everything was great.
April 27, 2024
5
Superb staff that is warm and welcoming. Everyone is attentive and seems to work together to create a well-run office, Getting scheduled for surgery was surprisingly fast and very professional with plenty of follow-up and communication. Highly recommend Wellstar Vinings Colorectal Surgery for excellent care.
April 27, 2024
5
Dr Hammen was very nice and explained the problem, what led to the problem, and hopefully, how to fix the problem. We liked him very much.
April 26, 2024
5
Dr. Hammen is the nicest doctor I have ever encountered at Wellstar or anywhere else.
April 12, 2024
5
My experience with this appointment was awesome. The doctor, Dr. Hammen, had an excellent bedside manner and so did all of the Wellstar
April 17, 2024
5
Dr Hammen's exceptional professionalism, care and concern, and attention to detail inspires my confidence. He is especially attentive to my wartime long term effects. I'm very blessed to be in his care.
April 6, 2024
5
I felt very comfortable and our questions were all answered.Things went well with my visit to Dr.Hammen.Thanks to all at office!
March 31, 2024
5
Dr. HAMMEN is wonderful.
March 25, 2024
5
Medical staff was super helpful and supportive throughout the whole process - from the intake process to the check in process, all the way through the medical procedure. The entire medical staff was top notch, and I especially appreciated the follow up and the card they sent me afterwards. I couldn't have asked for a better experience. Thank you.
March 16, 2024
5
Dr Hammen and his staff are great
March 2, 2024
5
I was pleasantly surprised. Dr. Hammen and his staff made a scary situation seem not scary at all. I was wowed with this experience.
March 2, 2024
4
The doctor is a very good person, he treated us very well, he is very kind and professional and I highly recommend him. God bless the doctor.
March 13, 2024
4
The doctor is a very good person, he treated us very well, he is very kind and professional and I highly recommend him. God bless the doctor.
March 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
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
The Nurse was very nice and showed concern for my situation. Dr. Hammen was very knowledgeable of my situation and explain in great detail on how the isuue occur and the recommendations to handle it in the very near future.
June 18, 2024
5
Dr. Hammen is easy to understand and is very nice. The people in his office are all polite. I feel I am in good hands.
June 10, 2024
5
My experience was great! The front staff and Doctor were very kind and listened to everything I wanted to talk about.
June 8, 2024
5
Excellent reception. Visit went well. And good departure. 4.5-5 star visit
May 17, 2024
5
Great staff. . . Admin & medical
May 12, 2024
5
The patient access person was so patient with me on the phone while updating my insurance and went over and beyond the call of duty to make sure it was verified prior to my appointment,she even called me back for reassurance after that so that I would have a successful visit . She even made me a copy of the of my verification for future reference while we wait for our cards to arrive . She definitely should be rewarded and givena supersized raise for her excellent customer service skills !!! The Dr is amazing !!
May 11, 2024
5
Dr. Hammen and his staff are great.
May 12, 2024
5
He's great
May 9, 2024
5
Dr Hammen is one of a kind Dr. With a staff just like him ..
May 9, 2024
5
Great experience
May 9, 2024
5
I walked out with an understanding of the problem, a treatment plan, & an accurate diagnosis. I appreciated the plan to exhaust all non-surgical options with high hopes of avoiding surgical interventions all-together, when I'm high-risk!
May 4, 2024
5
I really enjoyed Dr. Hammen. He took his time. He was communicated very well and never felt rushed. He showed a lot of care and explained everything where I understood the process from the very beginning to even post-surgery. And I would highly, highly recommend Dr. Hammen for others. Thank you.
May 5, 2024
5
Dr Hammen & staff were very professional, courteous, and very attentive to my needs!!!!!
May 3, 2024
5
Everything was great.
April 27, 2024
5
Superb staff that is warm and welcoming. Everyone is attentive and seems to work together to create a well-run office, Getting scheduled for surgery was surprisingly fast and very professional with plenty of follow-up and communication. Highly recommend Wellstar Vinings Colorectal Surgery for excellent care.
April 27, 2024
5
Dr Hammen was very nice and explained the problem, what led to the problem, and hopefully, how to fix the problem. We liked him very much.
April 26, 2024
5
Dr. Hammen is the nicest doctor I have ever encountered at Wellstar or anywhere else.
April 12, 2024
5
My experience with this appointment was awesome. The doctor, Dr. Hammen, had an excellent bedside manner and so did all of the Wellstar
April 17, 2024
5
Dr Hammen's exceptional professionalism, care and concern, and attention to detail inspires my confidence. He is especially attentive to my wartime long term effects. I'm very blessed to be in his care.
April 6, 2024
5
I felt very comfortable and our questions were all answered.Things went well with my visit to Dr.Hammen.Thanks to all at office!
March 31, 2024
5
Dr. HAMMEN is wonderful.
March 25, 2024
5
Medical staff was super helpful and supportive throughout the whole process - from the intake process to the check in process, all the way through the medical procedure. The entire medical staff was top notch, and I especially appreciated the follow up and the card they sent me afterwards. I couldn't have asked for a better experience. Thank you.
March 16, 2024
5
Dr Hammen and his staff are great
March 2, 2024
5
I was pleasantly surprised. Dr. Hammen and his staff made a scary situation seem not scary at all. I was wowed with this experience.
March 2, 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
The Nurse was very nice and showed concern for my situation. Dr. Hammen was very knowledgeable of my situation and explain in great detail on how the isuue occur and the recommendations to handle it in the very near future.
June 18, 2024
5
Dr. Hammen is easy to understand and is very nice. The people in his office are all polite. I feel I am in good hands.
June 10, 2024
5
My experience was great! The front staff and Doctor were very kind and listened to everything I wanted to talk about.
June 8, 2024
5
Excellent reception. Visit went well. And good departure. 4.5-5 star visit
May 17, 2024
5
Dr. Hammen and his staff are great.
May 12, 2024
5
Great staff. . . Admin & medical
May 12, 2024
5
The patient access person was so patient with me on the phone while updating my insurance and went over and beyond the call of duty to make sure it was verified prior to my appointment,she even called me back for reassurance after that so that I would have a successful visit . She even made me a copy of the of my verification for future reference while we wait for our cards to arrive . She definitely should be rewarded and givena supersized raise for her excellent customer service skills !!! The Dr is amazing !!
May 11, 2024
5
He's great
May 9, 2024
5
Dr Hammen is one of a kind Dr. With a staff just like him ..
May 9, 2024
5
Great experience
May 9, 2024
5
I really enjoyed Dr. Hammen. He took his time. He was communicated very well and never felt rushed. He showed a lot of care and explained everything where I understood the process from the very beginning to even post-surgery. And I would highly, highly recommend Dr. Hammen for others. Thank you.
May 5, 2024
5
I walked out with an understanding of the problem, a treatment plan, & an accurate diagnosis. I appreciated the plan to exhaust all non-surgical options with high hopes of avoiding surgical interventions all-together, when I'm high-risk!
May 4, 2024
5
Dr Hammen & staff were very professional, courteous, and very attentive to my needs!!!!!
May 3, 2024
5
Everything was great.
April 27, 2024
5
Superb staff that is warm and welcoming. Everyone is attentive and seems to work together to create a well-run office, Getting scheduled for surgery was surprisingly fast and very professional with plenty of follow-up and communication. Highly recommend Wellstar Vinings Colorectal Surgery for excellent care.
April 27, 2024
5
Dr Hammen was very nice and explained the problem, what led to the problem, and hopefully, how to fix the problem. We liked him very much.
April 26, 2024
5
My experience with this appointment was awesome. The doctor, Dr. Hammen, had an excellent bedside manner and so did all of the Wellstar
April 17, 2024
5
Dr. Hammen is the nicest doctor I have ever encountered at Wellstar or anywhere else.
April 12, 2024
5
Dr Hammen's exceptional professionalism, care and concern, and attention to detail inspires my confidence. He is especially attentive to my wartime long term effects. I'm very blessed to be in his care.
April 6, 2024
5
I felt very comfortable and our questions were all answered.Things went well with my visit to Dr.Hammen.Thanks to all at office!
March 31, 2024
5
Dr. HAMMEN is wonderful.
March 25, 2024
5
Medical staff was super helpful and supportive throughout the whole process - from the intake process to the check in process, all the way through the medical procedure. The entire medical staff was top notch, and I especially appreciated the follow up and the card they sent me afterwards. I couldn't have asked for a better experience. Thank you.
March 16, 2024
4
The doctor is a very good person, he treated us very well, he is very kind and professional and I highly recommend him. God bless the doctor.
March 13, 2024
5
Dr Hammen and his staff are great
March 2, 2024
5
I was pleasantly surprised. Dr. Hammen and his staff made a scary situation seem not scary at all. I was wowed with this experience.
March 2, 2024
5
I was pleasantly surprised. Dr. Hammen and his staff made a scary situation seem not scary at all. I was wowed with this experience.
March 2, 2024
5
Dr Hammen and his staff are great
March 2, 2024
4
The doctor is a very good person, he treated us very well, he is very kind and professional and I highly recommend him. God bless the doctor.
March 13, 2024
5
Medical staff was super helpful and supportive throughout the whole process - from the intake process to the check in process, all the way through the medical procedure. The entire medical staff was top notch, and I especially appreciated the follow up and the card they sent me afterwards. I couldn't have asked for a better experience. Thank you.
March 16, 2024
5
Dr. HAMMEN is wonderful.
March 25, 2024
5
I felt very comfortable and our questions were all answered.Things went well with my visit to Dr.Hammen.Thanks to all at office!
March 31, 2024
5
Dr Hammen's exceptional professionalism, care and concern, and attention to detail inspires my confidence. He is especially attentive to my wartime long term effects. I'm very blessed to be in his care.
April 6, 2024
5
Dr. Hammen is the nicest doctor I have ever encountered at Wellstar or anywhere else.
April 12, 2024
5
My experience with this appointment was awesome. The doctor, Dr. Hammen, had an excellent bedside manner and so did all of the Wellstar
April 17, 2024
5
Dr Hammen was very nice and explained the problem, what led to the problem, and hopefully, how to fix the problem. We liked him very much.
April 26, 2024
5
Superb staff that is warm and welcoming. Everyone is attentive and seems to work together to create a well-run office, Getting scheduled for surgery was surprisingly fast and very professional with plenty of follow-up and communication. Highly recommend Wellstar Vinings Colorectal Surgery for excellent care.
April 27, 2024
5
Everything was great.
April 27, 2024
5
Dr Hammen & staff were very professional, courteous, and very attentive to my needs!!!!!
May 3, 2024
5
I walked out with an understanding of the problem, a treatment plan, & an accurate diagnosis. I appreciated the plan to exhaust all non-surgical options with high hopes of avoiding surgical interventions all-together, when I'm high-risk!
May 4, 2024
5
I really enjoyed Dr. Hammen. He took his time. He was communicated very well and never felt rushed. He showed a lot of care and explained everything where I understood the process from the very beginning to even post-surgery. And I would highly, highly recommend Dr. Hammen for others. Thank you.
May 5, 2024
5
Great experience
May 9, 2024
5
Dr Hammen is one of a kind Dr. With a staff just like him ..
May 9, 2024
5
He's great
May 9, 2024
5
The patient access person was so patient with me on the phone while updating my insurance and went over and beyond the call of duty to make sure it was verified prior to my appointment,she even called me back for reassurance after that so that I would have a successful visit . She even made me a copy of the of my verification for future reference while we wait for our cards to arrive . She definitely should be rewarded and givena supersized raise for her excellent customer service skills !!! The Dr is amazing !!
May 11, 2024
5
Great staff. . . Admin & medical
May 12, 2024
5
Dr. Hammen and his staff are great.
May 12, 2024
5
Excellent reception. Visit went well. And good departure. 4.5-5 star visit
May 17, 2024
5
My experience was great! The front staff and Doctor were very kind and listened to everything I wanted to talk about.
June 8, 2024
5
Dr. Hammen is easy to understand and is very nice. The people in his office are all polite. I feel I am in good hands.
June 10, 2024
5
The Nurse was very nice and showed concern for my situation. Dr. Hammen was very knowledgeable of my situation and explain in great detail on how the isuue occur and the recommendations to handle it in the very near future.
June 18, 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