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Cardiovascular Disease (Cardiology)

Shirley Williams, MD

Works at hospitals in Lewisville, TX · Denton, TX · Flower Mound, TX · Texas

Summary

Shirley Williams, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 4 hospitals in Lewisville, TX, Denton, TX and Flower Mound, TX. NPI 1346298304. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Shirley Williams, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
49Years since medical school (graduated 1977)
University Of Iowa, Rj & L Carver College Of MedicineMedical school
FemaleGender (as listed)
Texas Health Physicians GroupGroup practice

Quick answers

Which hospitals does Shirley Williams work at?
Medicare's official clinician data lists Shirley Williams at 4 hospitals: Medical City Lewisville, Texas Health Presbyterian Hospital Denton, Texas Health Presbyterian Hospital Flower Mound and The Heart Hospital Baylor Denton. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Shirley Williams see patients?
Medicare's clinician data lists 1 practice location in Lewisville, TX. Call before your visit to confirm the address.
What is Shirley Williams's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
Does Shirley Williams accept Medicare assignment?
Yes. Medicare's clinician data says Shirley Williams accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Shirley Williams?
(972) 434-1988, as listed in official Medicare / NPI Registry data.
What is Shirley Williams's NPI number?
1346298304. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Shirley Williams works

Medicare's Facility Affiliation Data lists Shirley Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Shirley Williams is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Shirley Williams as a member of this group (CMS data updated 2026-10-02).

  • Texas Health Physicians Group1,365 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Texas →

Other cardiologists in Lewisville

Clinicians with the same Medicare primary specialty in Lewisville, TX — not a recommendation.

All cardiologists in Lewisville →

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year1977
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346298304
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians