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Certified Registered Nurse Anesthetist (CRNA)

Melanie M. Gerzema, CNA

Sees patients in Troy, MI · Novi, MI · Farmington Hills, MI … · Michigan

Summary

Melanie M. Gerzema, CNA is a nurse anesthetist at 230 W Maple Rd, Troy, MI 48084. Phone: (248) 244-1500. Accepts Medicare assignment. In 2024, Melanie M. Gerzema had 113 Original Medicare patients and 124 services. NPI 1629001607. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Nurse anesthetist (Medicare lists Certified Registered Nurse Anesthetist (CRNA))
  • Address: 230 W Maple Rd, Troy, MI 48084 · Directions (4 more locations)
  • Phone: (248) 244‑1500
  • Medicare: Accepts Medicare assignment
  • Group practice: Northwestern Services LLC (+4 more)
  • School: graduated 2002
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Melanie M. Gerzema, 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 Melanie M. Gerzema accept Medicare assignment?
Yes. Medicare's clinician data says Melanie M. Gerzema 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 Melanie M. Gerzema see?
In 2024, CMS data shows 113 Original Medicare patients and 124 services for Melanie M. Gerzema. This counts Original Medicare only and measures volume, not quality.
What is Melanie M. Gerzema's NPI number?
1629001607. 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 Melanie M. Gerzema, 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 patients113
Services billed to Medicare124
Different services or procedures9
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Anesthesia for lens surgery (00142)90 services
  2. Anesthesia for retinal surgery (00145)16 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%
  • Arthritis41%
  • Diabetes35%
  • Ischemic heart disease20%
  • Anxiety20%

Practice locations

Addresses where Melanie M. Gerzema is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Melanie M. Gerzema as a member of these groups (CMS data updated October 2, 2026).

  • Northwestern Services LLC49 clinicians in the group
  • West Michigan Aas LLC38 clinicians in the group
  • Novi Aas LLC34 clinicians in the group
  • Ambulatory Anesthesia Associates PC27 clinicians in the group
  • Asc Services of Michigan LLC14 clinicians in the group

Specialties

Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Michigan →

Other nurse anesthetists in Troy

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

All nurse anesthetists in Troy →

Other clinicians in Northwestern Services LLC

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

Clinician information

CredentialCNA
Graduation year2002
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629001607
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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