Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Peninsula Ultrasound, Mammography & Radiology Services Medical Group

Radiology Clinic/Center in San Mateo, CA · enumerated 2006 · authorized official Beth Kleiner, Ceo.

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

National Provider Identifier

1871569525

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Registry record

Entity type Organization (Type 2)

Legal business name Peninsula Ultrasound, Mammography & Radiology Services Medical Group

Practice address 101 S San Mateo Dr, Suite 201, San Mateo, CA, 94401

Phone (650) 343-1655

Enumeration date Feb 23, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QR0200X Radiology Clinic/Center Ambulatory Health Care Facilities · License G46504 (CA) Primary

Authorized official

Name Beth Kleiner

Title Ceo

Phone (655) 343-1655

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

Who is the authorized official for Peninsula Ultrasound, Mammography & Radiology Services Medical Group?

NPPES lists Beth Kleiner (Ceo) as the authorized official for this organization.

What is the NPI number for Peninsula Ultrasound, Mammography & Radiology Services Medical Group?

The NPI for Peninsula Ultrasound, Mammography & Radiology Services Medical Group is 1871569525, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.