Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Thomas C Harper, M.D. A Medical Corporation

Internal Medicine Physician in Templeton, CA · enumerated 2007 · authorized official Jeanine Klein, Billing Manager.

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

National Provider Identifier

1972799187

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Registry record

Entity type Organization (Type 2)

Legal business name Thomas C Harper, M.D. A Medical Corporation

Practice address 265 Posada Ln Ste D, Templeton, CA, 93465

Phone (805) 239-9055

Enumeration date Sep 20, 2007

Last updated in NPPES Mar 28, 2012

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G47703 (CA) Primary

Authorized official

Name Jeanine Klein

Title Billing Manager

Phone (805) 239-9055

Other identifiers

Identifier	Type	State	Issuer
00G477030	Other	CA	BLUE SHIELD
DF1511	Other	-	RAILROAD MEDICARE

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 type of organization is Thomas C Harper, M.D. A Medical Corporation?

Thomas C Harper, M.D. A Medical Corporation is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-28.