Andrea Anne Kummer, DO
NPI 1588192389ActiveIndividual· Psychiatry & Neurology, Psychiatry· Santa Rosa, CA
Psychiatry & Neurology, Psychiatry (DO) with Siyan Clinical Corporation and 1 other group, practicing in Santa Rosa, California. 94 Medicare patients in 2024, $35,873 paid; nearly all of their 257 Part D prescriptions were generic (94%). Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 3 companies reporting payments in 2025, $224.42 in all, mostly food and beverage.
Overview
| NPI | 1588192389 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 24, 2017 |
| Last updated in NPPES | Dec 16, 2022 |
| Certified by provider | Dec 16, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 20A20033 | 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 | 94 |
|---|---|
| Services billed | 475 across 12 procedure codes |
| Paid by Medicare | $35,873 |
Part D prescriptions in 2024
| Prescriptions (claims) | 257 · 298 30-day fills |
|---|---|
| Patients | 76 |
| Total drug cost | $23,140 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Psychiatry |
Medical groups
- Siyan Clinical CorporationSanta Rosa, CA · 20 clinicians
- Deepa Hasija MDSanta Rosa, CA · 7 clinicians
Industry payments (Open Payments)
- 2025$224.42 · 12 payments from 3 companies
- 2024$401.74 · 23 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $149.05 | 9 |
| Abbvie Inc. | $46.90 | 2 |
| E.R. Squibb & Sons, L.L.C. | $28.47 | 1 |
What the 2025 payments were for
- Food and Beverage$224.42 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 86 psychiatrists in Santa Rosa · All psychiatrists in California