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Internal Medicine

Grisel Mac Williams, MD

Sees patients in Pembroke Pines, FL · Hialeah, FL · Florida

Summary

Grisel Mac Williams, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Pembroke Pines, FL and Hialeah, FL. NPI 1053396549. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(954) 885‑9904 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Grisel Mac 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

2Practice locations
Internal MedicinePrimary specialty
YesAccepts Medicare assignment
46Years since medical school (graduated 1980)
FemaleGender (as listed)

Quick answers

Where does Grisel Mac Williams see patients?
Medicare's clinician data lists 2 practice locations, including Pembroke Pines, FL and Hialeah, FL. Call before your visit to confirm the address.
What is Grisel Mac Williams's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Grisel Mac Williams accept Medicare assignment?
Yes. Medicare's clinician data says Grisel Mac 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 Grisel Mac Williams?
(954) 885-9904, as listed in official Medicare / NPI Registry data.
What is Grisel Mac Williams's NPI number?
1053396549. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Specialties

Find other Internal Medicine doctors in Florida →

Other internal medicine doctors in Pembroke Pines

Clinicians with the same Medicare primary specialty in Pembroke Pines, FL — not a recommendation.

All internal medicine doctors in Pembroke Pines →

Clinician information

CredentialMD
Graduation year1980
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053396549
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians