Organization Active NPI

Diabetes & Endocrinology Clinic of South Texas PLLC

  • Endocrinology, Diabetes & Metabolism Physician
  • Harlingen, TX
National Provider Identifier
1770197816
Registry record updated Jul 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
Legal business name
DIABETES & ENDOCRINOLOGY CLINIC OF SOUTH TEXAS PLLC
Practice address
620 N Ed Carey Dr
Harlingen, TX 78550-7912
Phone
(956) 230-4971
Fax
(956) 230-4972
NPI assigned
Sep 5, 2020
Last updated
Jul 16, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jul 16, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Syed Azhar Hassan, MDNPI 1043659345
Title
President
Phone
(956) 230-4971

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X NU Primary

Addresses

Primary practice location

620 N Ed Carey Dr
Harlingen, TX 78550-7912

Mailing address

3212 S Sugar Rd
Edinburg, TX 78539-3693
Phone (956) 230-4971

Other practice location 1

56 E Price Rd
Brownsville, TX 78521-3508
Phone (956) 230-4971

Other practice location 2

3761 E Ruben M Torres Blvd
Brownsville, TX 78526-0093
Phone (956) 230-4971

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20200925000884 TX Part B Supplier - Clinic/Group Practice 0547689416 Receives reassigned benefits from 2 practitioners
Practice locations: Brownsville, TX; Harlingen, TX

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
45D2207120Diabetes & Endocrinology Clinic of South Texas PLL620 N Ed Carey Dr, Harlingen, TX 78550Certificate of waiverDec 22, 2026

National Provider Directory

National Provider Directory

Locations

3761 Ruben Torres SR Blvd
Brownsville, TX 78526
Phone (956) 230-4971

620 N Ed Carey Dr
Harlingen, TX 78550
Phone (956) 230-4971

620 N Ed Carey Dr
Ste A
Harlingen, TX 78550

Practitioners & affiliated clinicians

Practitioners 4

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1599264000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1752624000000",
    "number": "1770197816",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3212 S SUGAR RD",
            "city": "EDINBURG",
            "state": "TX",
            "postal_code": "785393693",
            "telephone_number": "956-230-4971",
            "fax_number": "956-230-4972"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "620 N ED CAREY DR",
            "city": "HARLINGEN",
            "state": "TX",
            "postal_code": "785507912",
            "telephone_number": "956-230-4971",
            "fax_number": "956-230-4972"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "56 E Price Rd",
            "address_purpose": "LOCATION",
            "city": "Brownsville",
            "state": "TX",
            "postal_code": "785213508",
            "country_code": "US",
            "telephone_number": "956-230-4971",
            "fax_number": "956-230-4972",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3761 E Ruben M Torres Blvd",
            "address_purpose": "LOCATION",
            "city": "Brownsville",
            "state": "TX",
            "postal_code": "785260093",
            "country_code": "US",
            "telephone_number": "956-230-4971",
            "fax_number": "956-280-5554",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "DIABETES & ENDOCRINOLOGY CLINIC OF SOUTH TEXAS PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2020-09-05",
        "last_updated": "2025-07-16",
        "certification_date": "2025-07-16",
        "status": "A",
        "authorized_official_last_name": "HASSAN",
        "authorized_official_first_name": "SYED",
        "authorized_official_middle_name": "AZHAR",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "956-230-4971",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Harlingen, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.