DIABETES & ENDOCRINOLOGY CLINIC OF SOUTH TEXAS PLLC
NPI 1770197816
Internal Medicine - Endocrinology, Diabetes & Metabolism in Harlingen, TX
About Diabetes & Endocrinology Clinic Of South Texas Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIABETES & ENDOCRINOLOGY CLINIC OF SOUTH TEXAS PLLC (NPI 1770197816) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Harlingen, Texas and active in the NPI registry since September 2020. The organization holds a CLIA Waiver certificate valid through December 22, 2026, maintains 2 additional practice locations, and lists Syed Azhar Hassan, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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)
Diabetes & Endocrinology Clinic Of South Texas Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Diabetes & Endocrinology Clinic Of South Texas PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
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 Waiver 45D2207120
Diabetes & Endocrinology Clinic Of South Texas Pll · Harlingen, 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 Diabetes & Endocrinology Clinic Of South Texas PLLC's NPI number?
The NPI number for Diabetes & Endocrinology Clinic Of South Texas PLLC is 1770197816. It was assigned to this organization in the NPPES registry on September 5, 2020.
Where is Diabetes & Endocrinology Clinic Of South Texas PLLC located?
Diabetes & Endocrinology Clinic Of South Texas PLLC is located at 620 N Ed Carey Dr, Harlingen, TX 78550. The listed phone number is (956) 230-4971.
What is Diabetes & Endocrinology Clinic Of South Texas PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Diabetes & Endocrinology Clinic Of South Texas PLLC enrolled in Medicare?
Yes. Diabetes & Endocrinology Clinic Of South Texas PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Diabetes & Endocrinology Clinic Of South Texas PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Diabetes & Endocrinology Clinic Of South Texas PLLC, in Endocrinology and Nurse Practitioner. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Diabetes & Endocrinology Clinic Of South Texas PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 45D2207120) is associated with this NPI, valid through December 22, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Diabetes & Endocrinology Clinic Of South Texas PLLC accept?
Health plans from Blue Cross and Blue Shield of Texas list Diabetes & Endocrinology Clinic Of South Texas 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 Diabetes & Endocrinology Clinic Of South Texas PLLC was last updated on July 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Diabetes & Endocrinology Clinic Of South Texas Pllc · NPI 1770197816
Endocrinology, Diabetes & Metabolism organization in Harlingen, Texas. Organization record, active in the CMS NPPES registry since September 5, 2020.
## Identity
- **NPI:** 1770197816 (Entity type: Organization)
- **Enumerated:** September 5, 2020
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **Organization subpart:** No
- **Authorized official:** Syed Hassan, PRESIDENT
## Practice location
- **Address:** 620 N ED CAREY DR, Harlingen, TX 78550-7912
- **Phone:** (956) 230-4971 · **Fax:** (956) 230-4972
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Endocrinology (1), Nurse Practitioner (1); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 16, 2025
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1770197816) · Data from the CMS NPPES public registry.