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Internal Medicine

Gerald Muthu, MD

Works at hospitals in Casa Grande, AZ · Gilbert, AZ · Arizona

Summary

Gerald Muthu, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Casa Grande, AZ and Gilbert, AZ. NPI 1275500902. 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 Gerald Muthu, 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
YesOffers telehealth
38Years since medical school (graduated 1988)
MaleGender (as listed)
Gerald Muthu, LLCGroup practice

Quick answers

Which hospitals does Gerald Muthu work at?
Medicare's official clinician data lists Gerald Muthu at 2 hospitals: Banner Casa Grande Medical Center and Mercy Gilbert Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Gerald Muthu see patients?
Medicare's clinician data lists 1 practice location in Casa Grande, AZ. Call before your visit to confirm the address.
What is Gerald Muthu's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Gerald Muthu accept Medicare assignment?
Yes. Medicare's clinician data says Gerald Muthu 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 Gerald Muthu offer telehealth?
Medicare's clinician data says Gerald Muthu offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Gerald Muthu?
(520) 876-0478, as listed in official Medicare / NPI Registry data.
What is Gerald Muthu's NPI number?
1275500902. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gerald Muthu works

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

Group practices

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

  • Gerald Muthu, LLC2 clinicians in the group

Specialties

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Casa Grande

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

All internal medicine doctors in Casa Grande →

Clinician information

CredentialMD
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1275500902
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