Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gunaseelan Ambrose, MD

Surgery Physician in Somerville, NJ · enumerated 2005.

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

National Provider Identifier

1841290517

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Registry record

Entity type Individual (Type 1)

Name Dr. Gunaseelan Ambrose

Credential MD

Sex Male

Practice address 30 Rehill Ave, Suite 3300, Somerville, NJ, 08876

Phone (908) 927-8994

Fax (908) 927-8995

Enumeration date Jul 26, 2005

Last updated in NPPES Sep 28, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 217173 (NY) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25MA07710100 (NJ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
02166654	Medicaid	NY	-

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

Is NPI 1841290517 active?

Yes, as of the latest NPPES snapshot, NPI 1841290517 is active (record last updated 2012-09-28).

How do I verify Gunaseelan Ambrose's NPI record?

Cross-check NPI 1841290517 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-28.