Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Donald Richard Brophy III, D.C,

Internist Chiropractor in Antioch, CA · enumerated 2005.

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

National Provider Identifier

1821098336

Verified

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Registry record

Entity type Individual (Type 1)

Name Donald Richard Brophy III

Credential D.C,

Sex Male

Practice address Antioch, CA, 94509

Phone (925) 754-6780

Fax (925) 754-6915

Enumeration date Jul 26, 2005

Last updated in NPPES Aug 8, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111NI0900X Internist Chiropractor Chiropractic Providers · License 15826 (CA) Primary

111NX0100X Occupational Health Chiropractor Chiropractic Providers · License 15826 (CA) Secondary

111NX0800X Orthopedic Chiropractor Chiropractic Providers · License 15826 (CA) Secondary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
DC0158260	Medicaid	CA	-
T76484	Other	CA	HILL PHYSICIANS

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 Donald Brophy?

The National Provider Identifier (NPI) for Donald Brophy is 1821098336, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donald Brophy practice?

The practice location on file with NPPES is in Antioch, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Richard Tunkel Physical Medicine & Rehabilitation Physician · Antioch, CA NPI 1851467609

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-08.