SOUTH HEART CLINIC, PLLC
NPI 1851626352
Internal Medicine - Cardiovascular Disease in Harlingen, TX
About South Heart Clinic, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUTH HEART CLINIC, PLLC (NPI 1851626352) is a healthcare organization registered as a cardiovascular disease in Harlingen, Texas and active in the NPI registry since October 2009. The organization holds a CLIA Certificate of Compliance certificate valid through April 12, 2028, maintains 4 additional practice locations, and lists Antonio Romero, Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 5
Secondary Practice Locations 4
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
South Heart Clinic, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
16Medicare enrollment records show 16 clinicians reassign Medicare billing to South Heart Clinic, PLLC, which bills Medicare for the services they deliver. Of these, 11 practice at this address and 13 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (16)
Harlingen, TX 78550
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Compliance 45D2009223
South Heart Clinic, PLLC - Weslaco Satillite · Weslaco, TXFrequently 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 South Heart Clinic, PLLC's NPI number?
The NPI number for South Heart Clinic, PLLC is 1851626352. It was assigned to this organization in the NPPES registry on October 16, 2009.
Where is South Heart Clinic, PLLC located?
South Heart Clinic, PLLC is located at 2310 N Ed Carey Dr Ste 1A, Harlingen, TX 78550. The listed phone number is (956) 428-5522.
What is South Heart Clinic, PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is South Heart Clinic, PLLC enrolled in Medicare?
Yes. South Heart Clinic, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through South Heart Clinic, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 4 Medicare specialties reassign their Medicare billing to South Heart Clinic, PLLC. A 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 the clinician's services. The largest specialties are Cardiovascular Disease (Cardiology) (10), Nurse Practitioner (3) and Cardiac Electrophysiology (2). Of these, 11 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does South Heart Clinic, PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 45D2009223) is associated with this NPI, valid through April 12, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does South Heart Clinic, PLLC accept?
Health plans from Blue Cross and Blue Shield of Texas list South Heart Clinic, PLLC 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.
When was this NPI record last updated?
The NPPES record for South Heart Clinic, PLLC 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 8 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.
# South Heart Clinic, Pllc · NPI 1851626352
Cardiovascular Disease organization in Harlingen, Texas. Organization record, active in the CMS NPPES registry since October 16, 2009.
## Identity
- **NPI:** 1851626352 (Entity type: Organization)
- **Enumerated:** October 16, 2009
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **Organization subpart:** No
- **Authorized official:** Antonio Romero, CEO
## Practice location
- **Address:** 2310 N ED CAREY DR STE 1A, Harlingen, TX 78550-8200
- **Phone:** (956) 428-5522 · **Fax:** (956) 412-5109
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 16 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Cardiovascular Disease (Cardiology) (10), Nurse Practitioner (3), Cardiac Electrophysiology (2); 11 practice at this address and 13 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 25, 2026
- **CLIA laboratory certificates:** 1 on file
---
Source: [NPI Profile](https://npiprofile.com/npi/1851626352) · Data from the CMS NPPES public registry.