Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Adelaida B Antonio, M.D.

General Practice Physician in Canoga Park, CA · enumerated 2007 · practices at Roy Medical Group, Inc..

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

National Provider Identifier

1134337975

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Registry record

Entity type Individual (Type 1)

Name Dr. Adelaida B Antonio

Credential M.D.

Sex Female

Practice address 21001 Sherman Way, Suite 15, Canoga Park, CA, 91303

Phone (818) 716-0048

Fax (818) 785-3330

Enumeration date May 17, 2007

Last updated in NPPES Dec 11, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License C41801 (CA) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License C41801 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00C418010	Medicaid	CA	-

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

Where does Adelaida Antonio practice?

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

What is the NPI number for Adelaida Antonio?

The National Provider Identifier (NPI) for Adelaida Antonio is 1134337975, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Rosalinda Roy Family Medicine Physician · Canoga Park, CA NPI 1821021981 Helena Felix Pediatrics Physician · Canoga Park, CA NPI 1932287836 Roy Medical Group, Inc. General Practice Physician · Canoga Park, CA NPI 1801921952

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-11.