Thambirajah Nandakumar, MD
NPI 1669431110 · Neurology Physician · Jamaica, NY
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thambirajah Nandakumar, MD is a Neurology Physician provider in Jamaica, NY (NPI 1669431110).
Provider details
- NPI number
- 1669431110
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 213544 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
870 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 205 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 181 | $140 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 177 | $60 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Limited Study95885 | 66 | $66 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 38 | $140 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 478 | 146 |
| Donepezil Hcl | 428 | 123 |
| Memantine Hcl | 371 | 104 |
| Pregabalin | 346 | 68 |
| Meloxicam | 345 | 103 |
| Amitriptyline Hcl | 243 | 67 |
| Duloxetine Hcl | 178 | 47 |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$120 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-22
- Last updated
- 2013-01-18
Frequently asked questions
- What is Thambirajah Nandakumar's NPI number?
- Thambirajah Nandakumar's National Provider Identifier (NPI) is 1669431110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thambirajah Nandakumar's specialty?
- Thambirajah Nandakumar is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Thambirajah Nandakumar located?
- Thambirajah Nandakumar's practice location on file with NPPES is 13420 Jamaica Ave, Jamaica, NY 11418-2619.
- What is Thambirajah Nandakumar's phone number?
- The practice phone number listed in the NPPES registry for Thambirajah Nandakumar is (718) 206-6742.
- Does Thambirajah Nandakumar accept Medicare?
- Thambirajah Nandakumar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thambirajah Nandakumar's NPI active?
- Yes — Thambirajah Nandakumar's NPI (1669431110) is active in the NPPES registry as of the last update on 2013-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.