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Marc R Shapiro Medical Corp

Internal Medicine Physician in Clearlake, CA · enumerated 2009 · authorized official Marc Shapiro, Ceo.

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

National Provider Identifier

1235373184

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Registry record

Entity type Organization (Type 2)
Legal business name Marc R Shapiro Medical Corp
Practice address 3400 Emerson St, Suite A, Clearlake, CA, 95422
Phone (707) 994-7241
Fax (707) 994-0870
Enumeration date Apr 22, 2009
Last updated in NPPES Aug 28, 2009

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G34359 (CA) Primary

Authorized official

Name Marc Shapiro
Title Ceo
Phone (707) 994-7241

Other identifiers

Identifier Type State Issuer
DP1119 Other CA MEDICARE RAILROAD
1235373184 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

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.
What type of organization is Marc R Shapiro Medical Corp?
Marc R Shapiro Medical Corp is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-28.