NPI Portal NPI Lookup & Verification

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

Mark Tavares

Case Management Agency in Sacramento, CA · enumerated 2007.

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

National Provider Identifier

1255512232

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Registry record

Entity type Individual (Type 1)
Name Mark Tavares
Sex Male
Practice address Sacramento, CA, 95818
Fax (916) 441-1600
Enumeration date Nov 19, 2007
Last updated in NPPES Nov 19, 2007

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

Taxonomy & licenses

251B00000X Case Management Agency Agencies Primary

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

How do I verify Mark Tavares's NPI record?
Cross-check NPI 1255512232 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1255512232 active?
Yes, as of the latest NPPES snapshot, NPI 1255512232 is active (record last updated 2007-11-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-19.