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Nephrology

Balazs Szamosfalvi, MD

Works at hospitals in Ann Arbor, MI · Michigan

Summary

Dr. Balazs Szamosfalvi, MD is a nephrologist at 1500 E Medical Ctr Dr, Ann Arbor, MI 48109. Phone: (888) 287-1084. Accepts Medicare assignment. In 2024, Balazs Szamosfalvi had 162 Original Medicare patients and 553 services. NPI 1639247174. 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: Nephrologist (Medicare lists Nephrology)
  • Address: 1500 E Medical Ctr Dr, Ann Arbor, MI 48109 · Directions (3 more locations)
  • Phone: (888) 287‑1084
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Michigan Health System
  • Group practice: Regents of the University of Michigan
  • Medical school: graduated 1993 (33 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Balazs Szamosfalvi, 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 Balazs Szamosfalvi accept Medicare assignment?
Yes. Medicare's clinician data says Balazs Szamosfalvi 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 Balazs Szamosfalvi see?
In 2024, CMS data shows 162 Original Medicare patients and 553 services for Balazs Szamosfalvi. This counts Original Medicare only and measures volume, not quality.
What is Balazs Szamosfalvi's NPI number?
1639247174. 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 Balazs Szamosfalvi, 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 patients162
Services billed to Medicare553
Different services or procedures18
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)117 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)117 services
  3. Dialysis services, 4 or more physician visits per month (20 years or older) (90960)101 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)46 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)40 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%
  • Chronic kidney disease75%
  • Diabetes60%
  • Heart failure57%
  • Ischemic heart disease52%

Hospitals where Balazs Szamosfalvi works

Medicare's Facility Affiliation Data lists Balazs Szamosfalvi 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 Balazs Szamosfalvi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Regents of the University of Michigan3,346 clinicians in the group

Specialties

Find other Nephrology doctors in Michigan →

Other nephrologists in Ann Arbor

Clinicians with the same Medicare primary specialty in Ann Arbor, MI — not a recommendation.

All nephrologists in Ann Arbor →

Other clinicians in Regents of the University of Michigan

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

Clinician information

CredentialMD
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639247174
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