Doctor profile · Federal record

Dr. Thambirajah Nandakumar, MD

Neurology Physician (CMS: Neurology) · Jamaica, NY

  • NPI 1669431110
  • Accepts Medicare
  • MIPS 79.5 / 100 · 2023
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
13420 Jamaica Ave
Jamaica, NY 114182619
(718) 206-6742
fax (718) 206-6905
Mailing address
80 Marcus Dr, Provider Enrollment
Melville, NY 117474230

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
January 18, 2013
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
New York #213544
Medicaid
NY #02048759

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669431110. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,260
Distinct HCPCS
10
Medicare allowed
$147,036
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 444 212 $91
99214 Established patient office or other outpatient visit, 30-39 minutes 175 117 $146
95816 Measurement of brain wave activity (eeg), awake and drowsy 129 120 $63
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 116 112 $150
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 71 69 $199
95885 Needle measurement of electrical activity in arm or leg muscles, limited study 68 35 $74
95819 Measurement of brain wave activity (eeg), awake and asleep 56 54 $63
99204 New patient office or other outpatient visit, 45-59 minutes 29 29 $189
99214 Established patient office or other outpatient visit, 30-39 minutes 29 21 $112
99204 New patient office or other outpatient visit, 45-59 minutes 27 27 $154

In context: peer comparison

Among 4 peers in Jamaica Neurology Physician, average services per provider: 55. This provider delivers 23× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$120
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
E.R. Squibb & Sons, L.L.C. 1 $102.31
Celgene Corporation 1 $17.66

By nature of payment

Food and Beverage
$120

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,867
Patients
791
Total drug cost
$101,519
Drug Type Claims Patients Total cost
Gabapentin Generic 384 135 $4,950
Donepezil Hcl Generic 345 109 $3,869
Memantine Hcl Generic 324 99 $12,689
Pregabalin Generic 268 51 $22,444
Meloxicam Generic 239 62 $684
Tramadol Hcl Generic 177 27 $567
Lamotrigine Generic 151 28 $2,201
Amitriptyline Hcl Generic 150 43 $1,868
Duloxetine Hcl Generic 141 41 $5,814
Levetiracetam Generic 130 44 $7,009

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thambirajah Nandakumar's medical specialty?
Dr. Thambirajah Nandakumar practices Neurology Physician in Jamaica, NY.
Where does Dr. Thambirajah Nandakumar practice?
Dr. Thambirajah Nandakumar practices at 13420 Jamaica Ave, Jamaica, NY 114182619. Office phone: 7182066742.
What is Dr. Thambirajah Nandakumar's NPI?
Dr. Thambirajah Nandakumar's National Provider Identifier (NPI) is 1669431110, issued by NPPES.
Does Dr. Thambirajah Nandakumar accept Medicare assignment?
Yes. Dr. Thambirajah Nandakumar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thambirajah Nandakumar commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Measurement of brain wave activity (eeg), awake and drowsy (HCPCS 95816). Source: CMS Medicare Physician & Other Practitioners file.