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

Frank Mazzola, MD

Clinical Cardiac Electrophysiology Physician in Harlingen, TX · enumerated 2006.

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

National Provider Identifier

1558323915

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Frank Mazzola

Credential MD

Sex Male

Practice address Harlingen, TX, 78550

Phone (956) 428-5522

Fax (956) 430-3400

Enumeration date Apr 3, 2006

Last updated in NPPES Feb 25, 2026

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

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License J9200 (TX) Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License J9200 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01256073	Medicaid	NY	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Frank Mazzola practice?

The practice location on file with NPPES is in Harlingen, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Frank Mazzola?

The National Provider Identifier (NPI) for Frank Mazzola is 1558323915, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-25.