Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kenneth Grier, M.D.

Family Medicine Physician in Apple Valley, CA · enumerated 2010.

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

National Provider Identifier

1114235744

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Kenneth Grier

Credential M.D.

Sex Male

Practice address 18564 Us Highway 18 Ste 101, Apple Valley, CA, 92307

Phone (760) 242-7777

Enumeration date Sep 16, 2010

Last updated in NPPES Oct 2, 2020

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A150771 (CA) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD-16580 (HI) Secondary

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 is the NPI number for Kenneth Grier?

The National Provider Identifier (NPI) for Kenneth Grier is 1114235744, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kenneth Grier practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-02.