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

Dr. Mark Ian Brenis, DPM

Podiatrist in Watsonville, CA · enumerated 2006.

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

National Provider Identifier

1801858048

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Ian Brenis
Credential DPM
Sex Male
Practice address Watsonville, CA, 95076
Phone (831) 728-8844
Fax (831) 763-1001
Enumeration date Apr 4, 2006
Last updated in NPPES Aug 31, 2016

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

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License E3289 (CA) Primary
213EP1101X Primary Podiatric Medicine Podiatrist Podiatric Medicine & Surgery Service Providers · License E3289 (CA) Secondary
213ES0000X Sports Medicine Podiatrist Podiatric Medicine & Surgery Service Providers · License E3289 (CA) Secondary
213ES0131X Foot Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License E3289 (CA) Secondary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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.

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Frequently asked questions

What is the NPI number for Mark Brenis?
The National Provider Identifier (NPI) for Mark Brenis is 1801858048, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Brenis practice?
The practice location on file with NPPES is in Watsonville, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-31.