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Emergency Medicine

Brendan Tarzia, DO

Works at hospitals in Phoenix, AZ · Arizona

Summary

Dr. Brendan Tarzia, DO is an emergency medicine doctor at 2601 E Roosevelt St, Phoenix, AZ 85008. Phone: (602) 344-5011. Accepts Medicare assignment. In 2024, Brendan Tarzia had 104 Original Medicare patients and 117 services. NPI 1609339514. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 2601 E Roosevelt St, Phoenix, AZ 85008 · Directions (1 more location)
  • Phone: (602) 344‑5011
  • Medicare: Accepts Medicare assignment
  • Hospital: Valleywise Health Medical Center
  • Group practice: District Medical Group Inc
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Brendan Tarzia, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Brendan Tarzia accept Medicare assignment?
Yes. Medicare's clinician data says Brendan Tarzia accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Brendan Tarzia see?
In 2024, CMS data shows 104 Original Medicare patients and 117 services for Brendan Tarzia. This counts Original Medicare only and measures volume, not quality.
What is Brendan Tarzia's NPI number?
1609339514. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Brendan Tarzia, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients104
Services billed to Medicare117
Different services or procedures11
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)76 services
  2. Emergency department visit with moderate level of medical decision making (99284)19 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis49%
  • Ischemic heart disease42%
  • Anxiety42%
  • Diabetes41%

Hospitals where Brendan Tarzia works

Medicare's Facility Affiliation Data lists Brendan Tarzia at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Brendan Tarzia is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brendan Tarzia as a member of this group (CMS data updated October 2, 2026).

  • District Medical Group Inc458 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arizona →

Other emergency medicine doctors in Phoenix

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

All emergency medicine doctors in Phoenix →

Other clinicians in District Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609339514
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians