Ashwin Ashok, M.D.
NPI 1134311236ActiveIndividual· Internal Medicine, Gastroenterology· Whittier, CA
Internal Medicine, Gastroenterology (M.D.) with Pih Health Physicians, practicing in Whittier, California. Their prescriptions cost Medicare Part D more than their services did: $417,627 for 2,130 claims, against $95,497 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $1,694 in all, mostly food and beverage. Lists Pih Health Downey Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1134311236 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 13, 2007 |
| Last updated in NPPES | Aug 22, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A97611 | CA |
| Internal Medicine | 207R00000X | A97611 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 370 |
|---|---|
| Services billed | 857 across 55 procedure codes |
| Paid by Medicare | $95,497 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,130 · 4,406 30-day fills |
|---|---|
| Patients | 652 |
| Total drug cost | $417,627 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Pih Health PhysiciansSanta Fe Springs, CA · 622 clinicians
Hospital affiliations
- Pih Health Downey HospitalDowney, CA
- Pih Health Hospital-WhittierWhittier, CA
Industry payments (Open Payments)
- 2025$1,694 · 68 payments from 10 companies
- 2024$1,329 · 43 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $583.26 | 25 |
| Phathom Pharmaceuticals, Inc. | $301.96 | 6 |
| Ardelyx, Inc. | $193.49 | 7 |
| Genzyme Corporation | $180.64 | 6 |
| Janssen Biotech, Inc. | $164.96 | 9 |
What the 2025 payments were for
- Food and Beverage$1,650 · 67 payments
- Education$43.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 gastroenterologists in Whittier · All gastroenterologists in California