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Internal Medicine

Anna Z. Madej, MD

Works at hospitals in Sunnyside, WA · Toppenish, WA · Richland, WA … · Washington

Summary

Dr. Anna Z. Madej, MD is an internal medicine doctor at 1016 Tacoma Ave, Sunnyside, WA 98944. Phone: (509) 837-1500. Accepts Medicare assignment. In 2024, Anna Z. Madej had 47 Original Medicare patients and 70 services. NPI 1194834705. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Anna Z. Madej, 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 Anna Z. Madej accept Medicare assignment?
Yes. Medicare's clinician data says Anna Z. Madej 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 Anna Z. Madej see?
In 2024, CMS data shows 47 Original Medicare patients and 70 services for Anna Z. Madej. This counts Original Medicare only and measures volume, not quality.
What is Anna Z. Madej's NPI number?
1194834705. 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 Anna Z. Madej, 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 patients47
Services billed to Medicare70
Different services or procedures12
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Urinalysis, manual test (81002)27 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 cholesterol60%
  • Arthritis47%
  • Diabetes38%
  • Osteoporosis23%

Hospitals where Anna Z. Madej works

Medicare's Facility Affiliation Data lists Anna Z. Madej 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.

  • Astria Sunnyside HospitalSunnyside, WA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 501330
  • Astria Toppenish HospitalToppenish, WA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 500037
  • Kadlec Regional Medical CenterRichland, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500058
  • Prosser Memorial HospitalProsser, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501312
  • Yakima Valley MemorialYakima, WA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 500036

Practice locations

Addresses where Anna Z. Madej is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anna Z. Madej as a member of this group (CMS data updated October 2, 2026).

  • Sunnyside Community Hospital Association57 clinicians in the group

Specialties

Find other Internal Medicine doctors in Washington →

Other internal medicine doctors in Sunnyside

Clinicians with the same Medicare primary specialty in Sunnyside, WA — not a recommendation.

All internal medicine doctors in Sunnyside →

Other clinicians in Sunnyside Community Hospital Association

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

Clinician information

CredentialMD
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194834705
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