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Colin Hamblin, A Professional Medical Corporation

Family Medicine Physician in Greenbrae, CA · enumerated 2025 · authorized official Basil Hamblin, President.

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

National Provider Identifier

1538049598

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Registry record

Entity type Organization (Type 2)
Legal business name Colin Hamblin, A Professional Medical Corporation
Practice address 599 Sir Frances Drake Blvd, Suite 206a, Greenbrae, CA, 94904
Phone (415) 663-1082
Fax (415) 663-9474
Enumeration date Sep 2, 2025
Last updated in NPPES Sep 2, 2025

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary
207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Secondary
207QH0002X Hospice and Palliative Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Basil Hamblin
Title President
Phone (415) 663-1082

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

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.
What type of organization is Colin Hamblin, A Professional Medical Corporation?
Colin Hamblin, A Professional Medical Corporation is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-02.