Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

R. William Buster, M.D. and Associates

Q: What is the NPI number for R. William Buster, M.D. and Associates?

The NPI for R. William Buster, M.D. and Associates is 1710030960, a Type 2 (organization) record in the CMS NPPES registry.

Geriatric Medicine (Internal Medicine) Physician in Orange, CA · enumerated 2007 · authorized official Robert Buster, Owner.

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

National Provider Identifier

1710030960

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Registry record

Entity type Organization (Type 2)

Legal business name R. William Buster, M.D. and Associates

Practice address 845 W La Veta Ave Ste 108, Orange, CA, 92868

Phone (714) 639-2600

Fax (714) 289-3906

Enumeration date Jan 19, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Robert Buster

Title Owner

Phone (714) 639-2600

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 R. William Buster, M.D. and Associates?

The NPI for R. William Buster, M.D. and Associates is 1710030960, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for R. William Buster, M.D. and Associates?

NPPES lists Robert Buster (Owner) 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 2020-08-22.