Gastroenterology in Monterey, California
Data updated monthly · Last refresh September 2026
14 Gastroenterology providers practice in Monterey. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Monterey
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. David Parsons, MDMonterey, CA · $257 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Isabelle Moonan, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 375-3577 Dr. James Di Sario, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 375-3577 Dr. Jan Kamler, MDMonterey, CA · $17,192 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Jeffrey Fiorenza, M.D.Monterey, CA · $407 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Kathryn Swanson, M.D.Monterey, CA · $230 in drug and device payments (2025) ·
(831) 375-3577 Dr. Lloyd Garren, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 375-3577 Dr. Mary Garren, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 375-3577 Dr. Michael Le, M.D.Monterey, CA · $196 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Michael Mendoza, M.D.Monterey, CA · $2,205 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Michael Smith, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 375-3577 Dr. Richard Hell, M.D.Monterey, CA · $796 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Steve HuMonterey, CA · $169 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Dr. Toby Katz, M.D.Monterey, CA · $722 in drug and device payments (2025) · Telehealth ·
(831) 375-3577 Conditions Gastroenterology providers in Monterey, 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 Monterey, California?There are 14 Gastroenterology providers with active NPI records practicing in Monterey, according to federal NPPES data refreshed monthly.
What conditions do Gastroenterology providers in Monterey treat?Gastroenterology providers in Monterey 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 Monterey Gastroenterology across California