Mark Jeffrey Schiller, M.D.
NPI 1245445170ActiveIndividual· Psychiatry & Neurology, Psychiatry· Corte Madera, CA
Opted out of Medicare from December 2012 to December 2026. Psychiatry & Neurology, Psychiatry (M.D.) in Corte Madera, California, licensed in CA, with an NPI issued in May 2007. Part D covered 452 prescriptions written in 2024, 99% of them generic. E.R. Squibb & Sons, L.L.C. was the largest of 13 companies reporting payments in 2025, $1,244 in all, mostly food and beverage.
Overview
| NPI | 1245445170 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 14, 2007 |
| Last updated in NPPES | Jan 29, 2025 |
| Certified by provider | Jan 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | G76519 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Dec 28, 2012 – Dec 28, 2026 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 452 · 667 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $12,382 |
| Generic share | 99% of claims |
Industry payments (Open Payments)
- 2025$1,244 · 43 payments from 13 companies
- 2024$994.18 · 44 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $187.31 | 3 |
| Alkermes, Inc. | $183.88 | 7 |
| Teva Pharmaceuticals USA, Inc. | $134.50 | 4 |
| Lundbeck LLC | $121.40 | 5 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $112.64 | 5 |
What the 2025 payments were for
- Food and Beverage$1,244 · 43 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 psychiatrists in Corte Madera · All psychiatrists in California