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Anesthesiology

Katie P. Zacharzewski, DO

Works at hospitals in Owosso, MI · Michigan

Summary

Dr. Katie P. Zacharzewski, DO is an anesthesiologist at 18101 Oakwood Blvd, Dearborn, MI 48124. Phone: (214) 687-0001. May accept Medicare assignment. In 2024, Katie P. Zacharzewski had 188 Original Medicare patients and 205 services. NPI 1275805483. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 18101 Oakwood Blvd, Dearborn, MI 48124 · Directions (5 more locations)
  • Phone: (214) 687‑0001
  • Medicare: May accept Medicare assignment
  • Hospital: Memorial Healthcare
  • Group practice: Northstar Anesthesia of Michigan III PLLC (+2 more)
  • Medical school: Michigan State University College Of Osteopathic Medicine · graduated 2010 (16 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Katie P. Zacharzewski, 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 Katie P. Zacharzewski accept Medicare assignment?
Medicare's clinician data says Katie P. Zacharzewski may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Katie P. Zacharzewski see?
In 2024, CMS data shows 188 Original Medicare patients and 205 services for Katie P. Zacharzewski. This counts Original Medicare only and measures volume, not quality.
What is Katie P. Zacharzewski's NPI number?
1275805483. 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 Katie P. Zacharzewski, 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 patients188
Services billed to Medicare205
Different services or procedures52
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for lens surgery (00142)36 services
  2. Anesthesia for other procedure on large bowel using an endoscope (00811)19 services
  3. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)16 services
  4. Anesthesia for other procedure on urinary system through urethra (00910)12 services
  5. Anesthesia for x-ray or radiation therapy (01922)11 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%
  • Arthritis62%
  • Ischemic heart disease37%
  • Diabetes34%
  • Anxiety34%

Hospitals where Katie P. Zacharzewski works

Medicare's Facility Affiliation Data lists Katie P. Zacharzewski 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.

  • Memorial HealthcareOwosso, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230121

Practice locations

Addresses where Katie P. Zacharzewski is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Katie P. Zacharzewski as a member of these groups (CMS data updated October 2, 2026).

  • Northstar Anesthesia of Michigan III PLLC561 clinicians in the group
  • Memorial Hospital214 clinicians in the group
  • Radius Anesthesia of Michigan PLLC5 clinicians in the group

Specialties

Find other Anesthesiology doctors in Michigan →

Other anesthesiologists in Dearborn

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

All anesthesiologists in Dearborn →

Other clinicians in Northstar Anesthesia of Michigan III PLLC

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

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1275805483
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