Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ahsan Uddin, MD

Pediatric Endocrinology Physician in New York, NY · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1508249590

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Registry record

Entity type Individual (Type 1)

Name Dr. Ahsan Uddin

Credential MD

Sex Male

Practice address 505 E 70th St Fl 3, New York, NY, 10021

Phone (646) 962-3442

Fax (646) 962-0265

Enumeration date Jul 8, 2015

Last updated in NPPES Oct 15, 2024

Taxonomy & licenses

2080P0205X Pediatric Endocrinology Physician Allopathic & Osteopathic Physicians · License 312989 (NY) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301503524 (MI) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 4301108487 (MI) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Ahsan Uddin?

Ahsan Uddin is registered in NPPES with the primary taxonomy of Pediatric Endocrinology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-15.