Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

County of San Mateo

Q: What type of organization is County of San Mateo?

County of San Mateo is registered in NPPES as a Prison Health Clinic/Center (its primary provider taxonomy).

Prison Health Clinic/Center in San Mateo, CA · enumerated 2019 · authorized official Michael Del Rosario, Clinical Services Manager II - Nurs.

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

National Provider Identifier

1669032868

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Registry record

Entity type Organization (Type 2)

Legal business name County of San Mateo

Parent organization County of San Mateo

Practice address 222 Paul Scannell Dr., San Mateo, CA, 94402

Phone (650) 312-5332

Fax (650) 655-6229

Enumeration date Jun 19, 2019

Last updated in NPPES Oct 16, 2025

Taxonomy & classification

261QP2400X Prison Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Michael Del Rosario

Title Clinical Services Manager II - Nurs

Phone (650) 363-7838

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 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 County of San Mateo?

County of San Mateo is registered in NPPES as a Prison Health Clinic/Center (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-16.