Mackenzie Erin Delzer, MD

Primary specialty

Obstetrics PhysicianTaxonomy code 207VX0000X

License

85962-20 Issued in WI

Practice address

744 S Webster Ave
Green Bay, WI 54301-3505

Phone

(920) 433-3500

NPI assigned

Apr 20, 2021

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Other names 1

• Mackenzie Erin Carlson Former name

Medicare fee-for-service enrollment

Enrolled in WI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Obstetrics/Gynecology

Education

University of Wisconsin School of Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Bellin Memorial Hospital IncGroup PAC ID 8820900749, 685 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Bellin Memorial Hospital Inc

  • Rural Health Clinic/Center
  • Algoma, WI
  • NPI 1609838473
  Medicare reassignment Care Compare group NPD
• Oconto Hospital & Medical Center Inc

  • Critical Access Hospital
  • Oconto, WI
  • NPI 1356373302
  Medicare reassignment NPD
• Bellin Memorial Hospital Inc

  • Family Medicine Physician
  • Green Bay, WI
  • NPI 1033172390
  NPD
• Bellin Memorial Hospital Inc

  • Cardiovascular Disease Physician
  • Green Bay, WI
  • NPI 1750534533
  NPD
• Oconto Hospital & Medical Center Inc

  • Rural Health Clinic/Center
  • Suring, WI
  • NPI 1104418037
  NPD
• Oconto Hospital & Medical Center Inc

  • Rural Health Clinic/Center
  • Marinette, WI
  • NPI 1528412673
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1618876800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758067200000",
    "number": "1669053781",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 23400",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543053400",
            "telephone_number": "920-433-3500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "744 S WEBSTER AVE",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543013505",
            "telephone_number": "920-433-3500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "111 Colchester Ave",
            "address_purpose": "LOCATION",
            "city": "Burlington",
            "state": "VT",
            "postal_code": "054011473",
            "country_code": "US",
            "telephone_number": "920-621-6023",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DELZER",
        "first_name": "MACKENZIE",
        "middle_name": "ERIN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-20",
        "last_updated": "2025-09-17",
        "certification_date": "2025-09-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VX0000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Obstetrics",
            "state": "WI",
            "license": "85962-20",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MACKENZIE",
            "last_name": "CARLSON",
            "middle_name": "ERIN",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Delo Sport and Stem SC
• Marjorie J Delo, MD
• Jessica Elean Delvoye, APNP, FNP
• Joni Constance Delwiche, LCSW
• Kelly Jane Delzer, APNP, FNP-C
• Amy Demaio
• Nicole Lee Dembroski, CSFA
• Jacob J. Demelle, PA-C
• Lauren R Demerath, PA-C
• Amy L Demerritt, H.I.S.

• Obstetrics Physician in Green Bay, WI
• Providers in Green Bay, WI by specialty
• Obstetrics Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 17, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.