NPPES file of Aug 9, 2026

Thambirajah Nandakumar, MD

Neurology Physician · Jamaica, NY

Thambirajah Nandakumar, MD is a neurology physician with a practice address in Jamaica, New York, and NPI 1669431110, issued on Mar 22, 2006. Check the license (New York 213544, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669431110
Name
Thambirajah Nandakumar
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
213544 NY
Self-reported in NPPES; status is on the state search
Practice location
13420 Jamaica Ave, Jamaica, NY 11418
Phone
(718) 206-6742
Enumerated
Mar 22, 2006
Record last updated
Jan 18, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(718) 206-6905
Medicaid ID
02048759 NY
Medicare enrollment
Enrolled (PECOS I20050512000274); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 13420 Jamaica Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammad Babury, MDPulmonary Disease Physician1679532113
  2. Farshad Bagheri, MDInfectious Disease Physician1669431029
  3. Jose Cervantes, MDHematology & Oncology Physician1144283458
  4. Judah Dubin, DDSDentist1831657246
  5. Victoria FuzaylovaPediatric Dentistry1427549450
  6. Edith GonzalezCase Manager/Care Coordinator1841552627

Verify Thambirajah Nandakumar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 213544
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.3 times the Medicare Part D claims of the average neurology physician in 2024

5,865 Medicare Part D claims for 789 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 219 claims were for opioids.

  1. Thambirajah Nandakumar5,865
  2. Specialty average1,370

Most prescribed

  1. Gabapentin478 claims
  2. Donepezil Hcl428 claims
  3. Memantine Hcl371 claims
  4. Pregabalin346 claims
  5. Meloxicam345 claims
  6. Amitriptyline Hcl243 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 89.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.3
  2. Costout of 100 · 30%73.9
  3. Promoting interoperabilityout of 100 · 25%79.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $119.97

2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thambirajah Nandakumar$119.97
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Tjh Medical Services PCJamaica, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Thambirajah Nandakumar among 1,778 neurology physician records in New York

Thambirajah Nandakumar, MD is one of 1,778 neurology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1987 · median 2004 among the 1,238 with a school on file
  • Record last updated2013 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in New York

There are 1,778 neurology physician records in New York.

The 8 neurology physician records with the nearest ZIP codes

  1. Alfred Bannerman, M.D.Jamaica, NY 114181649231366
  2. Morteza Modaber, M.D.Jamaica, NY 114181528412368
  3. Hasit Thakore, MDJamaica, NY 114181821057373
  4. Nityananda Podder, M.D.Hollis, NY 114231275588832
  5. Sharon Atkinson, MDJamaica, NY 114321497836811
  6. Aleksandr Isakov, M.D.Jamaica, NY 114321902339153
  7. Jai Kumar, M.DJamaica, NY 114321477858652
  8. Flora Morente, M.D.Jamaica, NY 114321013136225

Common questions

What is Thambirajah Nandakumar, MD's NPI number?

Thambirajah Nandakumar, MD's National Provider Identifier (NPI) is 1669431110, issued on Mar 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thambirajah Nandakumar, MD located?

The NPPES record lists a practice address at 13420 Jamaica Ave, Jamaica, NY, 11418. Phone: (718) 206-6742. Providers update this record themselves, so call before visiting.

How can I verify Thambirajah Nandakumar, MD's license?

NPPES lists New York license number 213544, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thambirajah Nandakumar, MD prescribe under Medicare Part D?

In 2024, Thambirajah Nandakumar, MD had 5,865 Medicare Part D claims for 789 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Thambirajah Nandakumar, MD's MIPS final score?

The 2023 MIPS final score is 89.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.