BRENNAN MEDICAL CORPORATION
NPI 1619263712
Internal Medicine - Cardiovascular Disease in Watsonville, CA

Active since June 27, 2011CLIA 05D0973378 · Waiver
30 BRENNAN ST, WATSONVILLE, CA 95076(831) 768-0220 Get Directions Write a Review

NPPES record last updated: June 27, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Brennan Medical Corporation NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRENNAN MEDICAL CORPORATION (NPI 1619263712) is a healthcare organization registered as a cardiovascular disease in Watsonville, California and active in the NPI registry since June 2011. The organization holds a CLIA Waiver certificate valid through October 28, 2027 and lists Mark Gerard Byrne, President, as its authorized official.

NPPES Registry Identity

NPI1619263712
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameBRENNAN MEDICAL CORPORATION
Location Address30 BRENNAN STWatsonville, CA 95076-4303
Mailing Address30 Brennan StWatsonville, CA 95076-4303 · (831) 768-0220
Organization SubpartNo
Authorized OfficialMark Gerard ByrnePresident · (831) 768-0220
Enumeration DateJune 27, 2011
NPI 1619263712 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X
30 BRENNAN ST, Watsonville, CA 95076

Other Identifiers 1

Medicaid00G743880CA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0973378

Brennan Medical Corporation · Watsonville, CA
Active · expires Oct 28, 2027
CLIA Number05D0973378
Laboratory TypePhysician Office
Certificate Effective DateOctober 29, 2025
Certificate Expiration DateOctober 28, 2027
Laboratory DirectorDr. Mark G. Byrne
Laboratory Phone(831) 768-0220
Laboratory LocationBrennan Medical Corporation30 Brennan St, Watsonville, CA 95076
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
30 BRENNAN ST
WATSONVILLE, CA 95076
Family Medicine
30 BRENNAN ST
WATSONVILLE, CA 95076
Physician Assistant
30 BRENNAN ST
WATSONVILLE, CA 95076
Nutritionist
30 BRENNAN ST
WATSONVILLE, CA 95076
Nurse Practitioner (Family)
30 BRENNAN ST
WATSONVILLE, CA 95076
Internal Medicine (Pulmonary Disease)
30 BRENNAN ST
WATSONVILLE, CA 95076
Internal Medicine (Interventional Cardiology)
30 BRENNAN ST
WATSONVILLE, CA 95076

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brennan Medical Corporation's NPI number?

The NPI number for Brennan Medical Corporation is 1619263712. It was assigned to this organization in the NPPES registry on June 27, 2011.

Where is Brennan Medical Corporation located?

Brennan Medical Corporation is located at 30 Brennan St, Watsonville, CA 95076. The listed phone number is (831) 768-0220.

What is Brennan Medical Corporation's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Does Brennan Medical Corporation hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0973378) is associated with this NPI, valid through October 28, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Brennan Medical Corporation was last updated on June 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.