Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Shirley Resurreccion Villarica, M.D.

Specialist in West Covina, CA · enumerated 2006.

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

National Provider Identifier

1851371595

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Registry record

Entity type Individual (Type 1)

Name Dr. Shirley Resurreccion Villarica

Credential M.D.

Sex Female

Practice address 1535 W Merced Ave, Suite 301, West Covina, CA, 91790

Phone (626) 814-8800

Fax (626) 814-8811

Enumeration date Jan 19, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A32139 (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
00A321391	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

Is NPI 1851371595 active?

Yes, as of the latest NPPES snapshot, NPI 1851371595 is active (record last updated 2007-07-08).

How do I verify Shirley Villarica's NPI record?

Cross-check NPI 1851371595 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Angela Ni General Practice Physician · West Covina, CA NPI 1962467423 John Z Wang MD Inc Internal Medicine Physician · West Covina, CA NPI 1861457327 Santosh Garg Pediatrics Physician · West Covina, CA NPI 1093772659 George Yang Endocrinology, Diabetes & Metabolism Physician · West Covina, CA NPI 1558304949 Jair Wong, MD, Inc Internal Medicine Physician · West Covina, CA NPI 1396771960 Mohd. Qaisar Khan Cardiovascular Disease Physician · West Covina, CA NPI 1487670485 Johny Cu Internal Medicine Physician · West Covina, CA NPI 1336223569 Healthcare Medical Supplies Inc Community/Retail Pharmacy · West Covina, CA NPI 1114054954

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.