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Internal Medicine

Mark A. Zaetta, MD

Works at hospitals in Tucson, AZ · Arizona

Summary

Mark A. Zaetta, MD (Internal Medicine) is listed by Medicare at 1 hospital in Tucson, AZ. NPI 1114901394. 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 Mark A. Zaetta, 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
35Years since medical school (graduated 1991)
Temple University School Of MedicineMedical school
MaleGender (as listed)
TMC Medical NetworkGroup practice

Quick answers

Which hospitals does Mark A. Zaetta work at?
Medicare's official clinician data lists Mark A. Zaetta at 1 hospital: Tucson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark A. Zaetta see patients?
Medicare's clinician data lists 2 practice locations, including Tucson, AZ. Call before your visit to confirm the address.
What is Mark A. Zaetta's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Mark A. Zaetta accept Medicare assignment?
Yes. Medicare's clinician data says Mark A. Zaetta 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 Mark A. Zaetta offer telehealth?
Medicare's clinician data says Mark A. Zaetta offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark A. Zaetta?
(520) 420-2340, as listed in official Medicare / NPI Registry data.
What is Mark A. Zaetta's NPI number?
1114901394. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark A. Zaetta works

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

Group practices

Medicare enrollment lists Mark A. Zaetta as a member of this group (CMS data updated 2026-10-02).

  • TMC Medical Network281 clinicians in the group

Specialties

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Tucson

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

All internal medicine doctors in Tucson →

Clinician information

CredentialMD
Medical schoolTemple University School Of Medicine
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1114901394
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