Dorene Kay Zerfas, M.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

01076316A Issued in IN

Practice address

3200 Pleasant Valley Rd
West Bend, WI 53095-9274

Phone

(262) 836-7300

NPI assigned

Mar 12, 2009

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

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

General Surgery

Education

Other, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ascension Medical Group-Southeast Wisconsin IncGroup PAC ID 8628980943, 551 clinicians

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension SE Wisconsin Hospital Hospital, Milwaukee, WI, CCN 520136
• Ascension St Francis Hospital Hospital, Milwaukee, WI, CCN 520078
• Community Memorial Hospital Hospital, Menomonee Falls, WI, CCN 520103

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dzerfas151242@direct.aspirus.org
• Direct secure messaging: dorene.zerfas@direct.milebluff.com

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.

• Ascension Medical Group-Southeast Wisconsin Inc

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  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
• Mile Bluff Medical Center Inc

  • Emergency Medicine Physician
  • Mauston, WI
  • NPI 1609912005
  Medicare reassignment NPD
• Mile Bluff Medical Center Inc

  • Urgent Care Clinic/Center
  • Mauston, WI
  • NPI 1437958683
  NPD
• Ascension All Saints Hospital, Inc

  • Rehabilitation Hospital Unit
  • Racine, WI
  • NPI 1417966540
  NPD (past)

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

• Ascension SE Wisconsin Hospital, Inc

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1427007384
  Care Compare affiliation
• Ascension SE Wisconsin Hospital, Inc

  • Rehabilitation Hospital Unit
  • Brookfield, WI
  • NPI 1861417362
  Care Compare affiliation
• Ascension St Francis Hospital, Inc

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1225087190
  Care Compare affiliation
• Community Memorial Hospital of Menomonee Falls Inc

  • General Acute Care Hospital
  • Menomonee Falls, WI
  • NPI 1609822881
  Care Compare affiliation

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

{
    "created_epoch": "1236816000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1427299973",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3200 PLEASANT VALLEY RD",
            "city": "WEST BEND",
            "state": "WI",
            "postal_code": "530959274",
            "telephone_number": "262-836-7300",
            "fax_number": "262-836-2436"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3200 PLEASANT VALLEY RD",
            "city": "WEST BEND",
            "state": "WI",
            "postal_code": "530959274",
            "telephone_number": "262-836-7300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZERFAS",
        "first_name": "DORENE",
        "middle_name": "KAY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-03-12",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NY",
            "license": "270530",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "WI",
            "license": "71608-20",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IN",
            "license": "01076316A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Patricia Zapf
• Alex James Zarling, PROFESSIONAL COUNSEL
• Kelly Zavada
• Regina Zehnder
• Lisa L Zeman, PTA
• Evann Grace Zima
• Christine M Zimmermann, CSAC
• Sara Zingsheim
• Lena Zinuticz
• Jeremiah Zook

• Surgery Physician in West Bend, WI
• Providers in West Bend, WI by specialty
• Surgery Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.
• 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.