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Michael B Purnell M D Inc

Specialist in Modesto, CA · enumerated 2007 · authorized official Collette Castillo, Billing Supervisor.

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

National Provider Identifier

1447448378

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Registry record

Entity type Organization (Type 2)
Legal business name Michael B Purnell M D Inc
Practice address 1335 Coffee Rd Ste 100, Modesto, CA, 95355
Phone (209) 524-5977
Fax (209) 524-7395
Enumeration date Oct 4, 2007
Last updated in NPPES Jun 7, 2022

Taxonomy & classification

174400000X Specialist Other Service Providers · License A454810 (CA) Primary

Authorized official

Name Collette Castillo
Title Billing Supervisor
Phone (209) 524-4438

Other identifiers

Identifier Type State Issuer
00A454810 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.

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Frequently asked questions

What is the NPI number for Michael B Purnell M D Inc?
The NPI for Michael B Purnell M D Inc is 1447448378, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Michael B Purnell M D Inc?
NPPES lists Collette Castillo (Billing Supervisor) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-07.