Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Gemender

Military Health Care Provider in San Diego, CA · enumerated 2018.

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

National Provider Identifier

1639670227

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Registry record

Entity type Individual (Type 1)

Name Mark Gemender

Sex Male

Practice address 2496 Bauer Rd, San Diego, CA, 92126

Phone (619) 881-9011

Enumeration date Feb 28, 2018

Last updated in NPPES May 1, 2020

Taxonomy & licenses

171000000X Military Health Care Provider Other Service Providers 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mark Gemender?

Mark Gemender is registered in NPPES with the primary taxonomy of Military Health Care Provider. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-01.