Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

East End Endocrine Associates PC

Endocrinology, Diabetes & Metabolism Physician in Riverhead, NY · enumerated 2006 · authorized official Alan Goldenberg, President.

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

National Provider Identifier

1366496259

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Registry record

Entity type Organization (Type 2)

Legal business name East End Endocrine Associates PC

Practice address 189 Main Rd, Riverhead, NY, 11901

Phone (631) 288-7120

Fax (631) 288-7124

Enumeration date May 22, 2006

Last updated in NPPES Oct 12, 2012

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 201208 (NY) Primary

Authorized official

Name Alan Goldenberg

Title President

Phone (631) 288-7120

Other identifiers

Identifier	Type	State	Issuer
01800471	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

What type of organization is East End Endocrine Associates PC?

East End Endocrine Associates PC is registered in NPPES as a Endocrinology, Diabetes & Metabolism Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-12.