Dr. Thambirajah Nandakumar, MD
- Medicare services, 2024
- 870
- Medicare patients, 2024
- 400
- Part D claims, 2024
- 5,865
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 134-20 Jamaica Ave, Richmond Hill, NY 11418
- Practice phone
- Call (718) 206-6742
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tjh Medical Services
Richmond Hill, New York
Find Dr. Nandakumar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thambirajah Nandakumar is a neurologist in Richmond Hill, New York
Dr. Nandakumar practices at Tjh Medical Services in Richmond Hill, New York.
Dr. Nandakumar's NPI, 1669431110, was assigned on March 22, 2006. Dr. Nandakumar holds New York license 213544.
- NPI
- 1669431110NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901846682
- NPI enumeration date
- March 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 206-6742
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thambirajah Nandakumar practices at Tjh Medical Services in Richmond Hill, New York
Dr. Nandakumar's primary practice is Tjh Medical Services, at 134-20 Jamaica Ave, Richmond Hill, NY 11418 in Queens County. The practice phone is (718) 206-6742.
- Tjh Medical Services134-20 Jamaica Ave, Richmond Hill, NY 11418 · Queens CountyPhone(718) 206-6742
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Thambirajah Nandakumar is affiliated with 5 sites of care and 2 medical groups
Dr. Nandakumar's primary practice is Tjh Medical Services in Richmond Hill, New York. Dr. Nandakumar is also affiliated with Jamaica Hospital Medical Center. The medical group on file is Jamaica Hospital Medical Center. Dmand AI also links Dr. Nandakumar to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Thambirajah Nandakumar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nandakumar practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tjh Medical Services | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thambirajah Nandakumar is one of 1,489 neurologists in New York
Neurology is Dr. Nandakumar's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Nandakumar is licensed in New York.
Specialties and state licenses
- Neurology, New YorkPrimary
Neurologists near Dr. Nandakumar
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thambirajah Nandakumar billed Medicare for 870 services in 2024
CMS data shows 870 Medicare services from Dr. Nandakumar across 12 procedure codes in 2024, for 400 Medicare patients. Medicare paid $72,807 for them.
Dr. Nandakumar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9322024: 54641%
- Tests and treatments
- 2023: 3052024: 2944%
- Surgery
- 2023: 232024: 3030%
Where Dr. Nandakumar's Medicare services took place, 2024
- In an office33839%
- In a facility53261%
Dr. Nandakumar compared with the New York median for neurologists, 2024
- Dr. Nandakumar
- New York median
- Medicare services
- 870vs 3762.3 times
- Medicare patients
- 400vs 1902.1 times
- Part D claims
- 5,613vs 37515.0 times
Medians across 1,462 neurologists in New York with Dmand AI profiles that report each measure.
Dr. Nandakumar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thambirajah Nandakumar treated 400 Medicare patients in 2024, average age 74
CMS counts 400 Medicare patients who saw Dr. Nandakumar in 2024. The largest group is 75 to 84, with 135 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 56% are also on Medicaid. Their average risk score is 2.27, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nandakumar's median patient age at 66, with 55% women.
Dr. Nandakumar's Medicare patients by age, 2024
Dr. Nandakumar's Medicare patients by sex, 2024
- Women21955%
- Men18145%
Chronic conditions among Dr. Nandakumar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Stroke or TIA52%
- Arthritis47%
- Ischemic heart disease44%
- Chronic kidney disease36%
- Heart failure35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nandakumar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thambirajah Nandakumar wrote 5,865 Medicare Part D claims in 2024
In 2024, Dr. Nandakumar wrote 5,865 Medicare Part D claims for 789 patients. 93% of them were for generic drugs. CMS names the drug for 5,613 of them, across 74 drugs with 11 or more claims each, at $641,099 in total drug cost. In 2023, CMS named 4,400 claims across 59 drugs.
Dr. Nandakumar's Part D claims by kind of drug, 2024
- Generic5,429 claims93%
- Brand-name418 claims7%
- Other18 claims0%
Dr. Nandakumar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nandakumar's Part D claims, 2024
- Opioids4%219 of 5,865 claims
- Antipsychotics, patients 65 and over1%77 of 5,865 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,4002024: 5,61328%
Drugs named by CMS: 74 in 2024, 59 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Thambirajah Nandakumar scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Nandakumar for performance year 2024, reported as part of a group. Dr. Nandakumar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nandakumar's MIPS scores, performance year 2024
- 85of 100Final score
- 64.8of 100Quality
- 79of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Thambirajah Nandakumar received $957 in industry payments from 2016 to 2025
CMS Open Payments shows 39 general payments to Dr. Nandakumar from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Novartis Pharmaceuticals Corporation paid the most, $174.
General payments to Dr. Nandakumar by program year, 2016 to 2025
General payments to Dr. Nandakumar by kind, 2016 to 2025
- Food and beverage$94298%
- Education$152%
Companies that paid Dr. Nandakumar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thambirajah Nandakumar's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thambirajah Nandakumar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thambirajah Nandakumar's NPI number?
Dr. Thambirajah Nandakumar's NPI number is 1669431110. It was assigned on March 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thambirajah Nandakumar?
Dr. Thambirajah Nandakumar is a neurologist in Richmond Hill, New York. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Thambirajah Nandakumar practice?
Dr. Nandakumar practices at 134-20 Jamaica Ave, Richmond Hill, NY 11418. Dr. Nandakumar's primary practice is Tjh Medical Services in Richmond Hill, New York. Dmand AI also links Dr. Nandakumar to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Thambirajah Nandakumar's office phone number?
The practice phone on file for Dr. Nandakumar is (718) 206-6742.
What is Dr. Thambirajah Nandakumar's medical license number?
Dr. Nandakumar holds New York license 213544.
Which hospitals is Dr. Thambirajah Nandakumar affiliated with?
Dr. Nandakumar is affiliated with Jamaica Hospital Medical Center. Dmand AI links Dr. Nandakumar to 1 more hospital.
What medical group is Dr. Thambirajah Nandakumar part of?
Dr. Nandakumar is linked to Jamaica Hospital Medical Center. Dmand AI links Dr. Nandakumar to 1 more medical group.
Does Dr. Thambirajah Nandakumar accept Medicare?
Yes. CMS data shows Dr. Nandakumar billed Medicare for 870 services in 2024, and Dr. Nandakumar accepts Medicare assignment.
What is Dr. Thambirajah Nandakumar's MIPS score?
Dr. Nandakumar's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Thambirajah Nandakumar see?
CMS counts 400 Medicare patients who saw Dr. Nandakumar in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Thambirajah Nandakumar bill to Medicare?
In 2024, Dr. Nandakumar's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and nerve and brain test (95816).
What drugs does Dr. Thambirajah Nandakumar prescribe most?
In 2024 Medicare Part D data, Dr. Nandakumar's most prescribed drugs by claims were Gabapentin, Donepezil HCl and Memantine HCl.
Has Dr. Thambirajah Nandakumar received payments from drug or device companies?
CMS Open Payments shows $957 in general payments to Dr. Nandakumar from 15 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Thambirajah Nandakumar been practicing?
Dr. Nandakumar graduated from medical school in 1987, 39 years ago.
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