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Obstetrics/Gynecology

Mackenzie E. Delzer, MD

Sees patients in Marinette, WI · Green Bay, WI · Wisconsin

Summary

Mackenzie E. Delzer, MD (Obstetrics/Gynecology) is enrolled with Medicare at 3 practice locations in Marinette, WI and Green Bay, WI. NPI 1669053781. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mackenzie E. Delzer, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
5Years since medical school (graduated 2021)
University Of Wisconsin School Of MedicineMedical school
FemaleGender (as listed)
Bellin Memorial Hospital IncGroup practice (+1 more)

Quick answers

Where does Mackenzie E. Delzer see patients?
Medicare's clinician data lists 3 practice locations, including Marinette, WI and Green Bay, WI. Call before your visit to confirm the address.
What is Mackenzie E. Delzer's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Mackenzie E. Delzer accept Medicare assignment?
Yes. Medicare's clinician data says Mackenzie E. Delzer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Mackenzie E. Delzer?
(715) 735-5225, as listed in official Medicare / NPI Registry data.
What is Mackenzie E. Delzer's NPI number?
1669053781. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Mackenzie E. Delzer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mackenzie E. Delzer as a member of these groups (CMS data updated 2026-10-02).

  • Bellin Memorial Hospital Inc697 clinicians in the group
  • Oconto Hospital and Medical Center Inc222 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Wisconsin →

Other OB-GYNs in Marinette

Clinicians with the same Medicare primary specialty in Marinette, WI — not a recommendation.

All OB-GYNs in Marinette →

Clinician information

CredentialMD
Medical schoolUniversity Of Wisconsin School Of Medicine
Graduation year2021
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669053781
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 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians