Siddhartha Shyam Nadkarni, M.D.
NPI 1861400814ActiveIndividual· Psychiatry & Neurology, Epilepsy· New York, NY
Psychiatry & Neurology, Epilepsy (M.D.) in New York, New York, licensed in NJ and NY, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $231,697 for 1,911 claims, against $33,469 paid for services in 2024. Axsome Therapeutics, Inc. reported $150.00 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1861400814 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 4, 2006 |
| Last updated in NPPES | Jan 4, 2026 |
| Certified by provider | Jan 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Epilepsy Primary | 2084E0001X | 25MA11349100 | NJ |
| Psychiatry & Neurology, Neurology | 2084N0400X | 25MA11349100 | NJ |
| Psychiatry & Neurology, Neurology | 2084N0400X | 219164 | NY |
| Psychiatry & Neurology, Clinical Neurophysiology | 2084N0600X | 219164 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Epileptologists (NJ); Practitioner - Neurology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 100 |
|---|---|
| Services billed | 228 across 10 procedure codes |
| Paid by Medicare | $33,469 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,911 · 2,359 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $231,697 |
| Generic share | 89% of claims |
Industry payments (Open Payments)
- 2025$150.00 · 1 payment from 1 company
- 2024$16.41 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Axsome Therapeutics, Inc. | $150.00 | 1 |
What the 2025 payments were for
- Food and Beverage$150.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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