Ron Chitayat, MD
NPI 1912008657ActiveIndividual· Internal Medicine, Gastroenterology· West Hills, CA
Internal Medicine, Gastroenterology (MD) in West Hills, California, licensed in CA, with an NPI issued in September 2006. 403 Medicare patients in 2024, $105,926 paid; nearly all of their 553 Part D prescriptions were generic (94%). Abbvie Inc. was the largest of 5 companies reporting payments in 2025, $332.80 in all, mostly food and beverage.
Overview
| NPI | 1912008657 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | Jan 27, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | G43613 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 403 |
|---|---|
| Services billed | 1,382 across 40 procedure codes |
| Paid by Medicare | $105,926 |
Part D prescriptions in 2024
| Prescriptions (claims) | 553 · 950 30-day fills |
|---|---|
| Patients | 187 |
| Total drug cost | $21,505 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1976 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$332.80 · 17 payments from 5 companies
- 2024$337.91 · 18 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $162.05 | 11 |
| Ardelyx, Inc. | $93.61 | 3 |
| Novo Nordisk Inc | $32.27 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $23.02 | 1 |
| Ironwood Pharmaceuticals, Inc | $21.85 | 1 |
What the 2025 payments were for
- Food and Beverage$332.80 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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