Rebecca Mahn, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

86474 Issued in WI

Practice address

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522

Phone

(414) 805-4777

Fax

(414) 805-4774

NPI assigned

Apr 18, 2017

Last updated

Oct 27, 2025By the provider in NPPES

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

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

Albert Einstein College of Medicine of Yeshiva University, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Froedtert Andthe Medical College of Wisconsin Community Physicians IncGroup PAC ID 3678760063, 1,265 clinicians

The Medical College of Wisconsin IncGroup PAC ID 2668384371, 2,092 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Froedtert Memorial Lutheran Hospital Hospital, Milwaukee, WI, CCN 520177

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H3359

Interoperability endpoints

• Direct secure messaging: rmahn662286@nychhc.direct-ci.com
• Direct secure messaging: rmahn959474@direct.froedtert.com

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

• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086
  Medicare reassignment Care Compare group NPD
• Froedtert &the Medical College of Wisconsin Community Physicians, Inc.

  • Internal Medicine Physician
  • Menomonee Falls, WI
  • NPI 1568787448
  Medicare reassignment Care Compare group
• New York City Health and Hospitals Corporation

  dba Jacobi Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1679587679
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Froedtert Memorial Lutheran Hospital, Inc.

  dba CDI-Froedtert Memorial Lutheran Hospital

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1255334173
  Care Compare affiliation

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

{
    "created_epoch": "1492473600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761523200000",
    "number": "1487188207",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-4777",
            "fax_number": "414-805-4774"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-4777",
            "fax_number": "414-805-4774"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAHN",
        "first_name": "REBECCA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-04-18",
        "last_updated": "2025-10-27",
        "certification_date": "2025-10-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NY",
            "license": "312470",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WI",
            "license": "86474",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Abigail Mahler, MD
• Jazmine S Mahler
• Amy L Mahlum, PHARMD
• Sarah A. Mahmoud, DMD
• Saqib Mahmud, MD
• Thomas H Mahn, MD
• Andrew Mahnke
• Mahogany Heart Counseling LLC
• Brooke Mahoney
• Jessica Mahsem, APNP

• Obstetrics & Gynecology Physician in Milwaukee, WI
• Providers in Milwaukee, 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 Oct 27, 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.