Greta Fritz, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

87202-20 Issued in WI

Practice address

1821 S Webster Ave
Green Bay, WI 54301-2253

Phone

(920) 436-1360

NPI assigned

Mar 23, 2022

Last updated

Sep 10, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MI

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Interoperability endpoints

• Direct secure messaging: gfritz1848056@direct.trinity-health.org

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

{
    "created_epoch": "1647993600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788998400000",
    "number": "1730838830",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 19070",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543079070",
            "telephone_number": "920-496-4700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1821 S WEBSTER AVE",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543012253",
            "telephone_number": "920-436-1360"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "525 Airport Dr",
            "address_purpose": "LOCATION",
            "city": "Oneida",
            "state": "WI",
            "postal_code": "541559035",
            "country_code": "US",
            "telephone_number": "920-869-2711",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FRITZ",
        "first_name": "GRETA",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-03-23",
        "last_updated": "2026-09-10",
        "certification_date": "2026-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WI",
            "license": "87202-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100423728",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gfritz258371@ewd.direct.hshs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "1821 S Webster Ave",
            "city": "Green Bay",
            "state": "WI",
            "country_code": "US",
            "postal_code": "543012253",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Meghan Jon Freund, M.D.
• Victoria Joan Friemark-Nelson, RDH
• Cassondra Frisque, MS, LPC, CSAC
• Sabrina Leslie Frisque, RN
• Fay Louise Fritsch, FNP-BC
• Kristine A Fry, OTR
• Jenna Frye
• Shannon Lynn Frye, D-PT
• Matthias A. Fuchs, M.D.
• Loren C Fuglestad, MD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.