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Sabarish Ram Ayyappan,

M.D.

Medical Director of Cellular Therapies

4.9 (222 Ratings)
Ayyapan Sabarish
Location
City of Hope Atlanta
600 Celebrate Life Parkway
Newnan, GA 30265
Specialties
Hematologic Oncology
Education
Medical school:

Madras Medical College, Chennai, India

Residency:

Internal Medicine - Unity Hospital- Rochester Regional Health, Rochester, New York

Fellowship:

Hematology & Oncology - Case Western Reserve University, Cleveland, Ohio

Academic Appointments

Associate Clinical Professor, Department of Hematologic Malignancies

Certifications

Internal Medicine – American Board of Internal Medicine

Oncology – American Board of Internal Medicine

About Me

Sabarish Ram Ayyappan, MD, joined City of Hope® Cancer Center Atlanta in May 2023, he is the Medical Director of Cellular Therapies, leading the hematologic malignancies program after coming to City of Hope to help establish the bone marrow transplant program at our Atlanta hospital.

“I was ready for the next step in my career, and the compassionate, patient-centered care model at City of Hope really resonated with me,” says Dr. Ayyappan. “I’m so excited to be a part of building and leading the hematologic malignancies program.”

Dr. Ayyappan earned his medical degree from Madras Medical College in Chennai, India, then completed an internal medicine residency at the Unity hospital in Rochester, New York. After his residency, Dr. Ayyappan served as Chief Fellow for his Hematology and Oncology fellowship at Case Western University in Cleveland, Ohio.

Nearly two decades later, Dr. Ayyappan amassed of experience and accolades, having won numerous awards for his research studies, including the 2021 Developmental Research Program Award from the Lymphoma Specialized Program of Research Excellence (SPORE) and the 2013 and 2016 American Society of Hematology Abstract Achievement Awards.

This interest in research was important in leading Dr. Ayyappan to the field of oncology. He’s long had a passion for science and knew he wanted to become a doctor from a young age. He chose to specialize in oncology, in particular, since it allowed him to work as both a clinician and researcher.

“While oncology does include the largest research component,” Dr. Ayyappan says, “I was most compelled to work in this area because of the opportunities to communicate and build relationships with patients over the course of their cancer journeys.”

In addition to his own research, Dr. Ayyappan has served as a reviewer for a number of medical publications, such as the American Journal of Hematology and the Journal of Hematology and Oncology. He’s also a member of the American Society of Hematology, American Society of Clinical Oncology, American Medical Association, Society of Hospital Medicine and the American College of Physicians.

Prior to joining City of Hope, Dr. Ayyappan served as an Assistant Professor at the University of Iowa, working in the Departments of Internal Medicine, Oncology and Bone Marrow Transplantation.

Outside of his work in hematology, Dr. Ayyappan is an avid soccer fan and loves staying active. He particularly enjoys spending time outdoors with his wife and children.

Patient reviews
The patient ratings and comments on this page are obtained from an external Press Ganey® outpatient survey provided to all eligible City of Hope patients within one to two weeks of their treatment occurrence. Raw data from the answers to the survey questions about our physicians are calculated by Press Ganey into a one- to five- star rating. In the spirit of transparency, all patient comments are posted as written by the patient, whether they are positive or negative. We only exclude comments if they are deemed to be slanderous or libelous, contain profanity or vulgar language, or do not relate to the patient's experience with the doctor involved. As a result, the comments are the views and opinions of the patients surveyed and are not endorsed by, and may not necessarily reflect the opinion of, City of Hope.
Mar 8, 2026
4.0
"I usually have great experiences on my visits but I'm beginning to wonder about Dr Ayyappan and his assistant. It shouldn't take more than a week for them to post their summary report."
Mar 8, 2026
4.0
"This doctor is getting slower and slower about posting my visit summary reports as well as the visit notes. I'm beginning to wonder if he even review my file before I arrive. He is falling off."
Mar 7, 2026
5.0
"Dr. Ayyappan is always a good spirited doctor and listens to my concerns and explains other issues I have with sincere concern."
Feb 17, 2026
5.0
"Dr Ayyappan was very concerned that I understand my options and answered all my questions about new treatments"
Feb 17, 2026
5.0
"I have recommended City of Hope and my oncologist to many friends. I'm very grateful for my care by medical as well as check in personnel."
Feb 10, 2026
5.0
"Couldn't ask for better care"
Jan 21, 2026
5.0
"The doctor & staff was able to break down medical jargon in way for me to understand all my symptoms"
Jan 21, 2026
5.0
"I live in [...] and always tell everyone down here how wonderful medical care is at City of Hope"
Jan 20, 2026
4.9
"Dr. Ayyappan was very thorough and explained my issue and options very carefully. He did not seemed rushed."
Jan 14, 2026
4.9
"Have an issue getting my [...] refill. Called on [...] to get refill was told prescription had no refills available. Would get with Dr and get back with me. Called back [...] told this time [...] had expired so waiting to hear back on that now."
Jan 9, 2026
5.0
"My experience with the staff is very good, friendly and professional."
Jan 9, 2026
5.0
"Dr. Sabarish Ayyappan is polite, professional showed concern about me as a patient. He returned my call and answered questions that I had."
Nov 17, 2025
5.0
"Good"
Nov 17, 2025
5.0
"Good"
Nov 8, 2025
5.0
"I recommend City of Hope to everybody!"
Nov 8, 2025
5.0
"I love Dr Ayyappan and City of Hope. I tell everybody how great they are"
Nov 4, 2025
5.0
"Best medical experience I've ever had."
Oct 19, 2025
5.0
"This was an excellent experience. When asked about my concerns, I showed the doctor my infected finger and immediately sent me to Urgent Care."
Oct 10, 2025
5.0
"I like getting my bloodwork results so quickly so I can review them with my oncologist."
Oct 10, 2025
5.0
"Sometimes I'm slow to take in new options but my doctor is very helpful and understanding."
Oct 9, 2025
4.9
"Excellent experience"
Sep 26, 2025
5.0
"Never had bad experience with this care provider"
Sep 17, 2025
5.0
"Already recommended others. Very pleased with care and staff."
Aug 24, 2025
5.0
"Excellent"
Aug 24, 2025
5.0
"Excellent"
Aug 18, 2025
5.0
"Outstanding Personal"
Aug 16, 2025
5.0
"My oncologist told us about a new proposed procedure. I look forward to hearing more about this at my next appointment"
Aug 16, 2025
5.0
"I've recommended City of Hope to several friends currently under cancer treatment at other facilities. I'm very pleased with my care and I know they would benefit by having all their treatments under one roof as well as the outstanding medical treatment."
Aug 13, 2025
5.0
"Good"
Aug 13, 2025
5.0
"Good"
Aug 5, 2025
5.0
"Very professional Drs and nurses"
Jul 29, 2025
5.0
"I will tell everyone that has cancer just what a God Send this place is!!!!"
Jun 24, 2025
5.0
"I am amazed at the care given to me and my medical conditions by my care team."
Jun 9, 2025
5.0
"Dr. Ayyappan is a sincere doctor. I feel comfortable having him as my doctor. He helps me understand my issues, test results and how to improve my health. Yes I do mention him when talking to others with similar problems hoping they may choose him as their doc as well."
Jun 3, 2025
4.7
"Showed concern and gave me options"
Jun 3, 2025
4.7
"Professional and caring about what you have going on"
Jun 1, 2025
5.0
"I would recommend provider [...]"