Thyagarajan Subramanian, MD
NPI 1003864091ActiveIndividual· Psychiatry & Neurology, Neurology· Hershey, PA
Psychiatry & Neurology, Neurology (MD) with Howard University, practicing in Hershey, Pennsylvania. Medicare paid $17,283 for services to 117 patients in 2024, and Part D covered 466 of their prescriptions (78% generic). Mdd US Operations, LLC was the largest of 5 companies reporting payments in 2025, $21,776 in all, mostly honoraria. Lists Howard University Hospital Corp as a hospital affiliation.
Overview
| NPI | 1003864091 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 4, 2006 |
| Last updated in NPPES | Sep 21, 2026 |
| Certified by provider | Sep 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | MD600003512 | DC |
| Psychiatry & Neurology, Neurology | 2084N0400X | MD051253L | PA |
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 - Neurology (DC); Practitioner - Neurology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 184 across 15 procedure codes |
| Paid by Medicare | $17,283 |
Part D prescriptions in 2024
| Prescriptions (claims) | 466 · 891 30-day fills |
|---|---|
| Patients | 85 |
| Total drug cost | $545,895 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Neurology |
Medical group
- Howard UniversityWashington, DC · 181 clinicians
Hospital affiliation
- Howard University Hospital CorpWashington, DC
Industry payments (Open Payments)
- 2025$21,776 · 37 payments from 5 companies
- 2024$1,799 · 8 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mdd US Operations, LLC | $21,489 | 31 |
| Neurocrine Biosciences, Inc. | $150.70 | 1 |
| Abbvie Inc. | $82.11 | 3 |
| Teva Pharmaceuticals USA, Inc. | $29.55 | 1 |
| Amgen Inc. | $24.84 | 1 |
What the 2025 payments were for
- Honoraria$19,090 · 6 payments
- Travel and Lodging$1,707 · 12 payments
- Food and Beverage$978.79 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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