Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gidon Feivel Goldenberg, M.D.

Internal Medicine Physician in North Haven, CT · enumerated 2006.

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

National Provider Identifier

1689619041

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Registry record

Entity type Individual (Type 1)

Name Dr. Gidon Feivel Goldenberg

Credential M.D.

Sex Male

Practice address 100 Broadway, North Haven, CT, 06473

Phone (203) 234-1891

Fax (203) 234-2678

Enumeration date Jun 19, 2006

Last updated in NPPES Sep 11, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 027733 (CT) 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
027733	Other	CT	CTCARE
110180190	Other	CT	RAILROAD MEDICARE
0478961	Other	CT	AETNA
061535742	Other	CT	UNITED HEALTHCARE
P498960	Other	CT	OXFORD
001277335	Medicaid	CT	-
0Q1460	Other	CT	HEALTHNET
01227733	Other	CT	CIGNA
010027733CT02	Other	CT	ANTHEM BCBS

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.

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Frequently asked questions

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.

What specialty is Gidon Goldenberg?

Gidon Goldenberg is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-11.