Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Guillermina W. Erni, MD

Pediatrics Physician in Salinas, CA · enumerated 2006.

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

National Provider Identifier

1366453094

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Registry record

Entity type Individual (Type 1)

Name Dr. Guillermina W. Erni

Credential MD

Sex Female

Practice address 219 N Sanborn Rd, Salinas, CA, 93905

Phone (831) 757-1365

Fax (831) 757-2824

Enumeration date Aug 10, 2006

Last updated in NPPES Aug 18, 2011

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A39788 (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
00A397880	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.

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Frequently asked questions

How do I verify Guillermina Erni's NPI record?

Cross-check NPI 1366453094 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366453094 active?

Yes, as of the latest NPPES snapshot, NPI 1366453094 is active (record last updated 2011-08-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-18.