TEXAS ASSOCIATES OF ENDOCRINOLOGY & DIABETES, P.A.
NPI 1851827331
Internal Medicine - Endocrinology, Diabetes & Metabolism in Mckinney, TX

Q: What is Texas Associates Of Endocrinology & Diabetes, P.A.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Active since May 03, 2017

4521 MEDICAL CENTER DR STE 400, MCKINNEY, TX 75069(214) 547-7557(469) 631-7217 Get Directions Write a Review

NPPES record last updated: February 24, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Texas Associates Of Endocrinology & Diabetes, P.a. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TEXAS ASSOCIATES OF ENDOCRINOLOGY & DIABETES, P.A. (NPI 1851827331) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Mckinney, Texas and active in the NPI registry since May 2017. The organization lists Muhammad Shaharyar Siddiqui, Owner Of Entity, as its authorized official.

NPPES Registry Identity

NPI1851827331

Entity TypeOrganization

Primary Taxonomy207RE0101X

Legal Business NameTEXAS ASSOCIATES OF ENDOCRINOLOGY & DIABETES, P.A.

Location Address4521 MEDICAL CENTER DR STE 400Mckinney, TX 75069-6863

Mailing Address4521 Medical Center Dr Ste 400Mckinney, TX 75069-6863 · (214) 547-7557 · Fax (469) 631-7217

Phone(214) 547-7557

Fax(469) 631-7217

Organization SubpartNo

Authorized OfficialMuhammad Shaharyar SiddiquiOwner Of Entity · (314) 258-3659

Enumeration DateMay 3, 2017

Last NPPES UpdateFebruary 24, 2023

NPPES CertifiedFebruary 24, 2023

✔ NPI 1851827331 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in TX · Q5278

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

4521 MEDICAL CENTER DR STE 400, Mckinney, TX 75069

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Other Identifiers 1

Medicaid371179801TX

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare, WellPoint.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)

Texas Associates Of Endocrinology & Diabetes, P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 3 clinicians reassign Medicare billing to Texas Associates Of Endocrinology & Diabetes, P.A., which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Muhammad Siddiqui, M.D.

Endocrinology

NPI 1194011999

4521 MEDICAL CENTER DR STE 400
Mckinney, TX 75069

(214) 547-7557

✔ PECOS✔ Accepts MedicareSame address

Aziza Mohammad

Nurse Practitioner

NPI 1386199818

1820 PRESTON PARK BLVD SUITE 1450
Plano, TX 75093

(972) 964-0363

✔ PECOS✔ Accepts Medicare13 mi

Shashpal Punshi, MD

Endocrinology

NPI 1144602459

9920 KINCEY AVE STE 120
Huntersville, NC 28078

(704) 316-6360

✔ PECOS✔ Accepts Medicare915 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Texas Associates Of Endocrinology & Diabetes, P.A.'s NPI number?

The NPI number for Texas Associates Of Endocrinology & Diabetes, P.A. is 1851827331. It was assigned to this organization in the NPPES registry on May 3, 2017.

Where is Texas Associates Of Endocrinology & Diabetes, P.A. located?

Texas Associates Of Endocrinology & Diabetes, P.A. is located at 4521 Medical Center Dr Ste 400, Mckinney, TX 75069. The listed phone number is (214) 547-7557.

What is Texas Associates Of Endocrinology & Diabetes, P.A.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Texas Associates Of Endocrinology & Diabetes, P.A. enrolled in Medicare?

Yes. Texas Associates Of Endocrinology & Diabetes, P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Texas Associates Of Endocrinology & Diabetes, P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Texas Associates Of Endocrinology & Diabetes, P.A., 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, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Texas Associates Of Endocrinology & Diabetes, P.A. accept?

Health plans from Molina Healthcare and WellPoint list Texas Associates Of Endocrinology & Diabetes, P.A. 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 Texas Associates Of Endocrinology & Diabetes, P.A. was last updated on February 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.