Thambirajah Nandakumar, MD
NPI 1669431110ActiveIndividual· Psychiatry & Neurology, Neurology· Jamaica, NY
Psychiatry & Neurology, Neurology (MD) with Tjh Medical Services PC, practicing in Jamaica, New York. Their prescriptions cost Medicare Part D more than their services did: $1,130,118 for 5,865 claims, against $81,589 paid for services in 2024. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $54.00 in all, mostly food and beverage. Lists Flushing Hospital Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1669431110 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 22, 2006 |
| Last updated in NPPES | Jan 18, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 213544 | 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 | 400 |
|---|---|
| Services billed | 956 across 35 procedure codes |
| Paid by Medicare | $81,589 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,865 · 9,598 30-day fills |
|---|---|
| Patients | 789 |
| Total drug cost | $1,130,118 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Neurology |
Medical group
- Tjh Medical Services PCKew Gardens, NY · 219 clinicians
Hospital affiliations
- Flushing Hospital Medical CenterFlushing, NY
- Jamaica Hospital Medical CenterJamaica, NY
Industry payments (Open Payments)
- 2025$54.00 · 3 payments from 3 companies
- 2024$119.97 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $21.22 | 1 |
| Celgene Corporation | $18.15 | 1 |
| Otsuka America Pharmaceutical, Inc. | $14.63 | 1 |
What the 2025 payments were for
- Food and Beverage$39.37 · 2 payments
- Education$14.63 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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