Doctor profile · Federal record

Dr. Sundar Natarajan, M.D.

Internal Medicine Physician · New York, NY

  • NPI 1578581856
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
423 E 23Rd St, Room 11101-S
New York, NY 100105011
(212) 686-7500
fax (212) 951-5987

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New York #230461

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578581856. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$79
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Illumina, Inc. 1 $79.10

By nature of payment

Food and Beverage
$79

Frequently asked questions

Auto-generated from federal data
What is Dr. Sundar Natarajan's medical specialty?
Dr. Sundar Natarajan practices Internal Medicine Physician in New York, NY.
Where does Dr. Sundar Natarajan practice?
Dr. Sundar Natarajan practices at 423 E 23Rd St, New York, NY 100105011. Office phone: 2126867500.
What is Dr. Sundar Natarajan's NPI?
Dr. Sundar Natarajan's National Provider Identifier (NPI) is 1578581856, issued by NPPES.