Quick answers
- Which hospitals does Mary S. Williams work at?
- Medicare's official clinician data lists Mary S. Williams at 1 hospital: Baylor Scott & White the Heart Hospital Plano. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary S. Williams see patients?
- Medicare's clinician data lists 3 practice locations, including Plano, TX, Dallas, TX and Prosper, TX. Call before your visit to confirm the address.
- What is Mary S. Williams's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mary S. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Mary S. 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.
- Does Mary S. Williams offer telehealth?
- Medicare's clinician data says Mary S. Williams offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mary S. Williams?
- (972) 964-0363, as listed in official Medicare / NPI Registry data.
- What is Mary S. Williams's NPI number?
- 1235417759. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary S. Williams works
Medicare's Facility Affiliation Data lists Mary S. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baylor Scott & White the Heart Hospital PlanoPlano, TX · Acute Care Hospital · CCN 670025
Practice locations
Addresses where Mary S. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1820 Preston Park Blvd, Suite 1450Plano, TX 75093 (972) 964‑0363
- 4001 Worth StDallas, TX 75246
- 821 N Coleman St, Suite 100Prosper, TX 75078 (469) 800‑5200
Group practices
Medicare enrollment lists Mary S. Williams as a member of this group (CMS data updated 2026-10-02).
- Healthtexas Provider Network2,697 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Plano
Clinicians with the same Medicare primary specialty in Plano, TX — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1235417759 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians