Gastroenterology in Mission Viejo, California
Data updated monthly · Last refresh September 2026
18 Gastroenterology providers practice in Mission Viejo. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Mission Viejo
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Ahmad Shaban, MDMission Viejo, CA · $252 in drug and device payments (2025) ·
(949) 364-2611 Dr. Asghar Oliai, M.D.Mission Viejo, CA · No drug or device payments recorded (2025) ·
(949) 388-8011 Dr. Daniald Rodrigues, M.D.Mission Viejo, CA · $3,111 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Daniel Kim, MDMission Viejo, CA · $2,991 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Douglas Nguyen, MDMission Viejo, CA · $406,320 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Edward Block, M.D.Mission Viejo, CA · $4,154 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Elmer Chang, M.D.Mission Viejo, CA · $4,414 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Habib Rahman, M.D.Mission Viejo, CA · $368 in drug and device payments (2025) ·
(949) 276-2882 Dr. Jack Feng, M.D.Mission Viejo, CA · $3,991 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Jae Lee, M.D.Mission Viejo, CA · No drug or device payments recorded (2025) ·
(949) 364-6000 Dr. Michael Santoro, M.D.Mission Viejo, CA · $3,179 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Dr. Nader Mirhoseni, M.D.Mission Viejo, CA · $961 in drug and device payments (2025) · Telehealth ·
(949) 348-2900 Dr. Om Chaurasia, MDMission Viejo, CA · $959 in drug and device payments (2025) · Telehealth ·
(949) 365-8836 Dr. Poneh Rahimi, MDMission Viejo, CA · $37 in drug and device payments (2025) ·
(949) 364-2536 Dr. Ramin Zabihi, MDMission Viejo, CA · $1,252 in drug and device payments (2025) · Telehealth ·
(949) 218-4488 Dr. Ronald Adamany, M.D.Mission Viejo, CA · $591 in drug and device payments (2025) ·
(949) 364-5090 Dr. Shahram Javaheri, M.D.Mission Viejo, CA · $750 in drug and device payments (2025) · Telehealth ·
(949) 389-0660 Dr. Wanjun Bae, M.D.Mission Viejo, CA · $4,448 in drug and device payments (2025) · Telehealth ·
(949) 364-5090 Conditions Gastroenterology providers in Mission Viejo, California commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
Common questions
How many Gastroenterology providers are in Mission Viejo, California?There are 18 Gastroenterology providers with active NPI records practicing in Mission Viejo, according to federal NPPES data refreshed monthly.
What conditions do Gastroenterology providers in Mission Viejo treat?Gastroenterology providers in Mission Viejo commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Mission Viejo Gastroenterology across California
