NPI Portal NPI Lookup & Verification

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

Mr. Gregory Michael Chernekoff, NP

Family Nurse Practitioner in Fresno, CA · enumerated 2008 · practices at Christopher Larson M.D., Inc.

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

National Provider Identifier

1730335233

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Registry record

Entity type Individual (Type 1)
Name Mr. Gregory Michael Chernekoff
Credential NP
Sex Male
Practice address Fresno, CA, 93720
Fax (559) 450-7605
Enumeration date Aug 15, 2008
Last updated in NPPES Aug 20, 2019

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 18274 (CA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier Type State Issuer
F0708728 Other CA AMERICAN ACADEMY OF NP CERTIFICATION

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

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.
What specialty is Gregory Chernekoff?
Gregory Chernekoff is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-20.