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Internal Medicine

Greta M. Brown, MD

Works at hospitals in Sun City West, AZ · Arizona

Summary

Greta M. Brown, MD (Internal Medicine) is listed by Medicare at 1 hospital in Sun City West, AZ. NPI 1770788820. 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 Greta M. Brown, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
32Years since medical school (graduated 1994)
FemaleGender (as listed)
Banner Primary Care Physicians Arizona LLCGroup practice

Quick answers

Which hospitals does Greta M. Brown work at?
Medicare's official clinician data lists Greta M. Brown at 1 hospital: Banner del E. Webb Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Greta M. Brown see patients?
Medicare's clinician data lists 2 practice locations, including Peoria, AZ and Sun City, AZ. Call before your visit to confirm the address.
What is Greta M. Brown's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Infectious Disease.
Does Greta M. Brown accept Medicare assignment?
Yes. Medicare's clinician data says Greta M. Brown 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 Greta M. Brown?
(623) 876-3800, as listed in official Medicare / NPI Registry data.
What is Greta M. Brown's NPI number?
1770788820. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Greta M. Brown works

Medicare's Facility Affiliation Data lists Greta M. Brown 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 Greta M. Brown is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Greta M. Brown as a member of this group (CMS data updated 2026-10-02).

  • Banner Primary Care Physicians Arizona LLC239 clinicians in the group

Specialties

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Peoria

Clinicians with the same Medicare primary specialty in Peoria, AZ — not a recommendation.

All internal medicine doctors in Peoria →

Clinician information

CredentialMD
Graduation year1994
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770788820
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