Denis A. Ostrovskiy, M.D.
NPI 1437199668ActiveIndividual· Psychiatry & Neurology, Neurology· Lake Success, NY
Psychiatry & Neurology, Neurology (M.D.) with Neurological Associates of Long Island, PC, practicing in Lake Success, New York. Their prescriptions cost Medicare Part D more than their services did: $4,397,758 for 2,590 claims, against $406,984 paid for services in 2024. Argenx US, Inc. was the largest of 29 companies reporting payments in 2025, $90,019 in all, mostly speaking and faculty fees. Lists North Shore University Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1437199668 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 7, 2006 |
| Last updated in NPPES | May 9, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 231798-1 | NY |
| Specialist | 174400000X | 231798-1 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,310 |
|---|---|
| Services billed | 2,988 across 36 procedure codes |
| Paid by Medicare | $406,984 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,590 · 4,816 30-day fills |
|---|---|
| Patients | 493 |
| Total drug cost | $4,397,758 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Neurology |
Medical group
- Neurological Associates of Long Island, PCNew Hyde Park, NY · 14 clinicians
Hospital affiliations
- North Shore University HospitalManhasset, NY
- St Francis Hospital - the Heart CenterRoslyn, NY
Industry payments (Open Payments)
- 2025$90,019 · 326 payments from 29 companies
- 2024$42,281 · 285 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Argenx US, Inc. | $32,604 | 61 |
| Amgen Inc. | $26,897 | 39 |
| Alexion Pharmaceuticals, Inc. | $12,723 | 22 |
| Ucb, Inc. | $12,473 | 15 |
| Janssen Biotech, Inc. | $2,340 | 3 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$71,768 · 33 payments
- Food and Beverage$7,616 · 258 payments
- Consulting Fee$6,910 · 3 payments
- Travel and Lodging$3,726 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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