Gastroenterology in Orange, California
Data updated monthly · Last refresh September 2026
45 Gastroenterology providers practice in Orange, and 82% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Orange
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. Alaa Abousaif, MDOrange, CA · $13,202 in drug and device payments (2025) · Telehealth ·
(714) 835-7700 Dr. Alexander Jahng, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Avni Jain, MD, FRCPCOrange, CA · $3,338 in drug and device payments (2025) ·
(714) 456-2249 Dr. Beshoy Yanny, M.D.Orange, CA · $35,129 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. C Gregory Albers, MDOrange, CA · $48,303 in drug and device payments (2025) · Telehealth ·
(714) 456-8978 Dr. Christina Ling, M.D.Orange, CA · $114 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Dr. Christopher Paiji, MDOrange, CA · $8,942 in drug and device payments (2025) · Telehealth ·
(562) 234-3765 Dr. David Lee, M.D. M.P.H. Dr. David Stanton, M.D.Orange, CA · $440 in drug and device payments (2025) · Telehealth ·
(714) 835-5100 Dr. David VealOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-6745 Dr. Elliot Yu, M.D.Orange, CA · $1,358 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. Frances Dang, MDOrange, CA · $17,870 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Dr. Haig Najarian, MDOrange, CA · $2,019 in drug and device payments (2025) · Telehealth ·
(714) 835-7700 Dr. Hardeep Singh, M.D.Orange, CA · $2,795 in drug and device payments (2025) · Telehealth ·
(714) 835-7700 Dr. Jaehyun Kim, MDOrange, CA · $95 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. James Lee, MDOrange, CA · $2,769 in drug and device payments (2025) · Telehealth ·
(714) 835-7700 Dr. Jason Samarasena, M.D.Orange, CA · $120,664 in drug and device payments (2025) · Telehealth ·
(714) 456-6693 Dr. Jessica Hung, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 937-9400 Dr. John Lee, MDOrange, CA · $34 in drug and device payments (2025) · Telehealth ·
(714) 456-8978 Dr. Jonathan Skupsky, MD/PHDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-7890 Dr. Jose Roque, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 937-9400 Dr. Joshua KwonOrange, CA · $4,059 in drug and device payments (2025) ·
(714) 456-6745 Dr. Kashyap Trivedi, MDOrange, CA · $2,051 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. Ketan Shah, M.D., M.B.A.Orange, CA · $8,404 in drug and device payments (2025) · Telehealth ·
(949) 744-5441 Dr. Kiran Sachdev, MDOrange, CA · $106 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Dr. Kristi Lindsey, FNPCOrange, CA · $1,203 in drug and device payments (2025) · Telehealth ·
(714) 835-5100 Dr. Mark SalemOrange, CA · $2,950 in drug and device payments (2025) · Telehealth ·
(714) 456-7358 Dr. Neetika Srivastava, M.D.Orange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-6187 Dr. Nimisha Parekh, MDOrange, CA · $4,119 in drug and device payments (2025) · Telehealth ·
(714) 456-8068 Dr. Ousama Alkhatib, MDOrange, CA · $1,732 in drug and device payments (2025) · Telehealth ·
(714) 835-7700 Dr. Pavan Mankal, M.D.Orange, CA · $1,788 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. Piotr Sowa, M.D.Orange, CA · $305 in drug and device payments (2025) · Telehealth ·
(714) 456-6745 Dr. Robert Fearn, MBCHBOrange, CA · $104 in drug and device payments (2025) · Telehealth ·
(714) 456-7890 Dr. Robert Lee, M.D.Orange, CA · No drug or device payments recorded (2025) · Telehealth ·
(888) 717-4463 Dr. Sandra Sunhee Park, MDOrange, CA · $12,347 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Dr. Shravani Reddy, M.DOrange, CA · $2,543 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Dr. Shruti Ariza, MDOrange, CA · $1,757 in drug and device payments (2025) · Telehealth ·
(714) 835-5100 Dr. Usman Rahim, M.D.Orange, CA · $2,398 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Dr. William Collins, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 639-3363 Dr. William Karnes, MDOrange, CA · $104 in drug and device payments (2025) · Telehealth ·
(888) 717-4463 Conditions Gastroenterology providers in Orange, 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 Orange, California?There are 45 Gastroenterology providers with active NPI records practicing in Orange, according to federal NPPES data refreshed monthly.
How many Gastroenterology providers in Orange received drug or device company payments?37 of 45 (82%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Gastroenterology providers in Orange treat?Gastroenterology providers in Orange 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 Orange Gastroenterology across California