Anish Sunderrajan Shah, M.D
NPI 1164615589ActiveIndividual· Psychiatry & Neurology, Psychiatry· Santa Rosa, CA
Psychiatry & Neurology, Psychiatry (M.D) with Siyan Clinical Corporation, practicing in Santa Rosa, California. 78 Medicare patients in 2024, $74,938 paid; nearly all of their 846 Part D prescriptions were generic (98%). Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $136.26 in all, mostly food and beverage.
Overview
| NPI | 1164615589 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Aug 20, 2007 |
| Last updated in NPPES | Feb 8, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A84992 | 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 - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 78 |
|---|---|
| Services billed | 748 across 14 procedure codes |
| Paid by Medicare | $74,938 |
Part D prescriptions in 2024
| Prescriptions (claims) | 846 · 1,399 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $44,613 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Psychiatry |
Medical group
- Siyan Clinical CorporationSanta Rosa, CA · 20 clinicians
Industry payments (Open Payments)
- 2025$136.26 · 6 payments from 2 companies
- 2024$205.04 · 10 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $107.84 | 5 |
| Biogen, Inc. | $28.42 | 1 |
What the 2025 payments were for
- Food and Beverage$136.26 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other psychiatrists in Santa Rosa
- 1013078625
- 1184778284
- 1295297083
- 1407924475
- 1467826552
- 1588045140
- 1588192389
- 1649260506
- 1740743988
- 1811044407
- 1285261578
- 1669975470
All 86 psychiatrists in Santa Rosa · All psychiatrists in California