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

Olivia L Mac, M.D.

Surgery Physician in Wildomar, CA · enumerated 2016.

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

National Provider Identifier

1265886824

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Registry record

Entity type Individual (Type 1)

Name Olivia L Mac

Credential M.D.

Sex Female

Practice address Wildomar, CA, 92595

Phone (951) 698-3000

Fax (951) 698-7700

Enumeration date Apr 20, 2016

Last updated in NPPES Oct 17, 2022

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A154938 (CA) Primary

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

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 specialty is Olivia Mac?

Olivia Mac is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Bolaji Nafiu Vascular Surgery Physician · Wildomar, CA NPI 1003927393

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-17.