Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Marin Medical Concierge

Internal Medicine Physician in Greenbrae, CA · enumerated 2024 · authorized official Alana Walker, Practice Manager.

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

National Provider Identifier

1629885728

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Registry record

Entity type Organization (Type 2)

Legal business name Marin Medical Concierge

Practice address 1300 S Eliseo Dr Ste 203, Greenbrae, CA, 94904

Phone (415) 461-5552

Fax (415) 464-8964

Enumeration date Dec 12, 2024

Last updated in NPPES Feb 27, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alana Walker

Title Practice Manager

Phone (415) 461-5552

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

Where is Marin Medical Concierge located?

The practice location on file with NPPES is in Greenbrae, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-02-27. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-27.