Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Riverwalk Ultrasound Center

Q: What is the NPI number for Riverwalk Ultrasound Center?

The NPI for Riverwalk Ultrasound Center is 1801271960, a Type 2 (organization) record in the CMS NPPES registry.

Diagnostic Ultrasound Physician in Riverside, CA · enumerated 2015 · authorized official Max Villacreses, Director.

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

National Provider Identifier

1801271960

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Registry record

Entity type Organization (Type 2)

Legal business name Riverwalk Ultrasound Center

Practice address 4193 Flat Rock Dr, Suite 200-212, Riverside, CA, 92505

Phone (951) 807-0386

Enumeration date Jul 29, 2015

Last updated in NPPES Jul 29, 2015

Taxonomy & classification

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Max Villacreses

Title Director

Phone (951) 963-6286

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 the NPI number for Riverwalk Ultrasound Center?

The NPI for Riverwalk Ultrasound Center is 1801271960, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Riverwalk Ultrasound Center?

NPPES lists Max Villacreses (Director) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-29.