Dr. Ethan Bortniker, M.D. completed the 7 year BA/MD program at Boston University followed by internal medicine residency at Boston Medical Center. After a year as a hospitalist at Boston Medical Center, Dr Bortniker pursued Gastroenterology fellowship at University of Connecticut where he stayed on as faculty for 3 years actively participating in teaching, research activities in colon cancer prevention, director of motility program, and earned an MBA from UConn.
Dr. Ethan Bortniker, M.D. completed the 7 year BA/MD program at Boston University followed by internal medicine residency at Boston Medical Center. After a year as a hospitalist at Boston Medical Center, Dr Bortniker pursued Gastroenterology fellowship at University of Connecticut where he stayed on as faculty for 3 years actively participating in teaching, research activities in colon cancer prevention, director of motility program, and earned an MBA from UConn.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
Excellent A+++
(6 days ago)
Apr-2026
Courteous, professional doctor-good guy…all staff were exceptional! Made the (not so Pleasant) experience relaxing & comfortable!
(1 week ago)
Apr-2026
Great beside manner and lovely to talk to.
(1 week ago)
Apr-2026
Always so supportive, welcoming and makes you feel at ease with clear explanations and kindness.
(2 weeks ago)
Apr-2026
I had a great experience with Dr. Ethan Bortniker. He is a very patient, calm, and attentive specialist who truly listens and takes the time to help you.
The front desk staff are also very friendly, professional, and welcoming.
I highly recommend him and his team.
(3 weeks ago)
Apr-2026
Very personal- he was honest about what he could and couldn’t help me with and although there wasn’t much change in my situation it was clear he reviewed my information and was educated on my prognosis and what additional support he could provide.
(3 weeks ago)
Apr-2026
Very professional and friendly!
(1 month ago)
Mar-2026
Thank you Dr. Bortniker my visit today was overall great !! Your assistance nurses went over and beyond to make my procedure safe and comfortable.
Also answered my questions I had and overall all a great visit. Once again thank you & the nurses who help me out today.
Thank you
Hosea J.
(1 month ago)
Mar-2026
He explained to me what was going to happen, very kind and knowledgeable
(1 month ago)
Mar-2026
While I only met him for a few minutes prior to my procedure, he was thorough and had reviewed my chart and asked me questions and answered my questions. I thought he was was pleasant and felt confident about him.
(1 month ago)
Mar-2026
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GI-Encinitas
781 Garden View Court Suite #100 Encinitas, CA
GI-San Diego - Rancho Bernardo
11770 Bernardo Plaza Ct Suite 270B San Diego, CA 92128
Dr. Ethan Bortniker, M.D. completed the 7 year BA/MD program at Boston University followed by internal medicine residency at Boston Medical Center. After a year as a hospitalist at Boston Medical Center, Dr Bortniker pursued Gastroenterology fellowship at University of Connecticut where he stayed on as faculty for 3 years actively participating in teaching, research activities in colon cancer prevention, director of motility program, and earned an MBA from UConn.
In 2019, life brought Dr Bortniker to the sunshine of southern California where he joined faculty at UCSD and San Diego VA.
Dr Bortniker has pursued additional clinical training in medical hypnotherapy for patients with Gastrointestinal disorders. Prior to joining Coastal Gastroenterology, Dr Bortniker spent one year with a private practice in Palm Springs.
Dr Bortniker practices general Gastroenterology with an interest in motility, disorders of the brain gut access, prevention of GI tract cancers, liver disease, and general endoscopy including colonoscopy, egd, and capsule endoscopy.
Excellent A+++
Courteous, professional doctor-good guy…all staff were exceptional! Made the (not so Pleasant) experience relaxing & comfortable!
Great beside manner and lovely to talk to.
Always so supportive, welcoming and makes you feel at ease with clear explanations and kindness.
I had a great experience with Dr. Ethan Bortniker. He is a very patient, calm, and attentive specialist who truly listens and takes the time to help you. The front desk staff are also very friendly, professional, and welcoming. I highly recommend him and his team.
Very personal- he was honest about what he could and couldn’t help me with and although there wasn’t much change in my situation it was clear he reviewed my information and was educated on my prognosis and what additional support he could provide.
Very professional and friendly!
Thank you Dr. Bortniker my visit today was overall great !! Your assistance nurses went over and beyond to make my procedure safe and comfortable. Also answered my questions I had and overall all a great visit. Once again thank you & the nurses who help me out today. Thank you Hosea J.
He explained to me what was going to happen, very kind and knowledgeable
While I only met him for a few minutes prior to my procedure, he was thorough and had reviewed my chart and asked me questions and answered my questions. I thought he was was pleasant and felt confident about him.