Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Rainier E. Guiang, M.D., A Medical Corporation

Pain Medicine (Anesthesiology) Physician in Riverside, CA · enumerated 2007 · authorized official Rainier Guiang, President.

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

National Provider Identifier

1508980483

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Registry record

Entity type Organization (Type 2)

Legal business name Rainier E. Guiang, M.D., A Medical Corporation

Other name <Unavail>

Practice address 6900 Brockton Ave, Suite #1, Riverside, CA, 92506

Phone (951) 202-3687

Fax (866) 287-0329

Enumeration date Mar 18, 2007

Last updated in NPPES Apr 20, 2009

Taxonomy & classification

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License A84296 (CA) Primary

Authorized official

Name Rainier Guiang

Title President

Phone (951) 202-3687

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 Rainier E. Guiang, M.D., A Medical Corporation?

NPPES lists Rainier Guiang (President) as the authorized official for this organization.

What is the NPI number for Rainier E. Guiang, M.D., A Medical Corporation?

The NPI for Rainier E. Guiang, M.D., A Medical Corporation is 1508980483, 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 2009-04-20.