Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Marin Endocrine Care & Research Inc

Nurse Practitioner in Greenbrae, CA · enumerated 2006 · authorized official Richard Bernstein, Owner.

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

National Provider Identifier

1780792523

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Marin Endocrine Care & Research Inc

Other name <Unavail>

Practice address 900 South Eliseo Drive, #201, Greenbrae, CA, 94904

Phone (415) 461-1780

Fax (415) 461-7378

Enumeration date Aug 29, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

163W00000X Registered Nurse Nursing Service Providers · License 540997 (CA) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 00G179390 (CA) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 00G353640 (CA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 9726 (CA) Primary

Authorized official

Name Richard Bernstein

Title Owner

Phone (415) 461-1780

Other identifiers

Identifier	Type	State	Issuer
00G353640	Other	CA	GAUDIANI LICENSE
00G179390	Other	CA	BERNSTEIN LICENSE
GR0040590	Medicaid	CA	-

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 Marin Endocrine Care & Research Inc?

Marin Endocrine Care & Research Inc is registered in NPPES as a Nurse Practitioner (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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.