FRANK MAZZOLA MD
NPI 1558323915
Internal Medicine - Clinical Cardiac Electrophysiology in Harlingen, TX
About Frank Mazzola Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FRANK MAZZOLA MD (NPI 1558323915) is an individual clinical cardiac electrophysiology provider in Harlingen, Texas, licensed in Texas (J9200) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Vhs Harlingen Hospital Company Llc, and is a graduate of University Of Connecticut School Of Medicine (1987).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Frank Mazzola Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Frank Mazzola reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Harlingen, TX 78550
- Reassigned Medicare billing, Texas enrollment
- 17 clinicians in this Medicare group
Harlingen, TX 78550
- Reassigned Medicare billing, Texas enrollment
- 19 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 25
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Vhs Harlingen Hospital Company LLC
Acute Care Hospitals · Harlingen, TXKnapp Medical Center
Acute Care Hospitals · Weslaco, TXHarlingen Medical Center
Acute Care Hospitals · Harlingen, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HARLINGEN, TX 78550
HARLINGEN, TX 78550
HARLINGEN, TX 78550
HARLINGEN, TX 78550
HARLINGEN, TX 78550
HARLINGEN, TX 78550
HARLINGEN, TX 78550
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 Frank Mazzola's NPI number?
The NPI number for Frank Mazzola is 1558323915. It was assigned to this individual provider in the NPPES registry on April 3, 2006.
Where is Frank Mazzola located?
Frank Mazzola practices at 2310 N Ed Carey Dr Suite 1A, Harlingen, TX 78550. The listed phone number is (956) 428-5522.
What is Frank Mazzola's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Frank Mazzola enrolled in Medicare?
Yes. Frank Mazzola is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Frank Mazzola's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Frank Mazzola reassigns Medicare benefits to 2 organizations: South Heart Clinic, PLLC (Harlingen, TX) and Hmc Rgv Physicians Group (Harlingen, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Frank Mazzola's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Frank Mazzola accept?
Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Frank Mazzola as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Frank Mazzola affiliated with any hospitals?
According to CMS data, Frank Mazzola is affiliated with Vhs Harlingen Hospital Company LLC, Knapp Medical Center and Harlingen Medical Center.
When was this NPI record last updated?
The NPPES record for Frank Mazzola was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Frank Mazzola, MD · NPI 1558323915
Clinical Cardiac Electrophysiology physician in Harlingen, Texas. Individual provider, active in the CMS NPPES registry since April 3, 2006.
## Identity
- **NPI:** 1558323915 (Entity type: Individual)
- **Enumerated:** April 3, 2006
- **Primary specialty:** Internal Medicine - Clinical Cardiac Electrophysiology · taxonomy 207RC0001X
- **State license:** J9200 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2310 N ED CAREY DR, SUITE 1A, Harlingen, TX 78550-8200
- **Phone:** (956) 428-5522 · **Fax:** (956) 430-3400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): South Heart Clinic, PLLC (NPI 1851626352, Harlingen, TX); Hmc Rgv Physicians Group (NPI 1447639265, Harlingen, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 1987
## Record status
- **NPPES last updated:** February 25, 2026
- **Other identifiers:** Medicaid 01256073 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1558323915) · Data from the CMS NPPES public registry.