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

Dr. Gregg Alan Ellison, MD

Internal Medicine Physician in Templeton, CA · enumerated 2006.

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

National Provider Identifier

1073573168

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregg Alan Ellison

Credential MD

Sex Male

Practice address Templeton, CA, 93465

Phone (805) 434-1851

Fax (805) 434-1193

Enumeration date Mar 24, 2006

Last updated in NPPES Feb 25, 2009

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A33338 (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 is the NPI number for Gregg Ellison?

The National Provider Identifier (NPI) for Gregg Ellison is 1073573168, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregg Ellison practice?

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

Other providers at this practice address

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Kevin Colton Internal Medicine Physician · Templeton, CA NPI 1770542268 Community Health Centers of the Central Coast Inc Federally Qualified Health Center (FQHC) · Templeton, CA NPI 1851318638 Anthony Sheplay Pain Medicine (Physical Medicine & Rehabilitation) Physician · Templeton, CA NPI 1679589980 Pain and Spine Medicine Center of the Central Coast Pain Medicine (Physical Medicine & Rehabilitation) Physician · Templeton, CA NPI 1841395944 Anthony W. Sheplay, MD, Dba: Templeton Surgery Center Ambulatory Surgical Clinic/Center · Templeton, CA NPI 1639274723 North County Associates, LLC Ambulatory Surgical Clinic/Center · Templeton, CA NPI 1205009040 Lags Spine & Sportscare Medical Centers Inc Pain Medicine (Physical Medicine & Rehabilitation) Physician · Templeton, CA NPI 1962707935

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-25.