Anton Ostashko
NPI 1134617459ActiveIndividual· Psychiatry & Neurology, Neurology· Mountain View, CA
Opted out of Medicare from August 2023 to August 2027. Psychiatry & Neurology, Neurology in Mountain View, California, licensed in CA, with an NPI issued in April 2018. Part D covered 618 prescriptions written in 2024, 88% of them generic. Eisai Inc. was the largest of 4 companies reporting payments in 2025, $361.85 in all, mostly food and beverage.
Overview
| NPI | 1134617459 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 23, 2018 |
| Last updated in NPPES | Dec 3, 2025 |
| Certified by provider | Dec 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | A175602 | 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 Aug 12, 2023 – Aug 12, 2027 |
| 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) | 618 · 1,096 30-day fills |
|---|---|
| Patients | 92 |
| Total drug cost | $62,017 |
| Generic share | 88% of claims |
Industry payments (Open Payments)
- 2025$361.85 · 9 payments from 4 companies
- 2024$229.61 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eisai Inc. | $192.52 | 4 |
| Lilly USA, LLC | $93.81 | 3 |
| Life Molecular Imaging Ltd | $43.22 | 1 |
| Abbvie Inc. | $32.30 | 1 |
What the 2025 payments were for
- Food and Beverage$361.85 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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