Timothy S Welsch, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

1518-023 Issued in WI

Practice address

1284 N Summit Ave
Oconomowoc, WI 53066-4459

Phone

(262) 569-3080

NPI assigned

May 4, 2006

Last updated

May 15, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 2

Electronic endpoints 3

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2002

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Aurora St Lukes Medical Center Hospital, Milwaukee, WI, CCN 520138
• West Allis Memorial Hospital Hospital, West Allis, WI, CCN 520139
• Aurora Medical Center - Summit Hospital, Summit, WI, CCN 520206

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: twelsch24782@direct.aurora.org

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.

• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment Care Compare group NPD
• Aurora Advanced Healthcare, Inc.

  • Family Medicine Physician
  • Milwaukee, WI
  • NPI 1265629133
  Medicare reassignment
• Lakeshore Medical Clinic, LLC

  • Family Medicine Physician
  • St Francis, WI
  • NPI 1003861188
  Medicare reassignment
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Oshkosh, WI
  • NPI 1326858044
  NPD
• Milwaukee Radiologists LTD

  • Diagnostic Radiology Physician
  • Greenfield, WI
  • NPI 1568564904
  NPD

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

• Aurora Health Care Metro, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Cudahy, WI
  • NPI 1235355983

  Hospital

  Care Compare affiliation
• Aurora Health Care Metro, Inc.

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1861447179
  Care Compare affiliation
• Aurora Health Care Southern Lakes, Inc.

  dba Aurora Medical Center Summit

  • General Acute Care Hospital
  • Summit, WI
  • NPI 1699008029
  Care Compare affiliation
• West Allis Memorial Hospital, Inc.

  dba Aurora West Allis Medical Center

  • Clinic/Center
  • West Allis, WI
  • NPI 1235345695

  Hospital

  Care Compare affiliation
• West Allis Memorial Hospital, Inc.

  dba Aurora West Allis Medical Center

  • General Acute Care Hospital
  • West Allis, WI
  • NPI 1407801640
  Care Compare affiliation

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

{
    "created_epoch": "1146700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778803200000",
    "number": "1649228891",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 735044",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606735044",
            "telephone_number": "800-326-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1284 N SUMMIT AVE",
            "city": "OCONOMOWOC",
            "state": "WI",
            "postal_code": "530664459",
            "telephone_number": "262-569-3080"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2900 W Oklahoma Ave",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532154330",
            "country_code": "US",
            "telephone_number": "414-649-6588",
            "fax_number": "770-237-1723",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WELSCH",
        "first_name": "TIMOTHY",
        "middle_name": "S",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-04",
        "last_updated": "2026-05-15",
        "certification_date": "2026-05-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "1518-023",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "000",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "41964400",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "N",
            "endpointDescription": "2.16.840.1.113883.3.667.2",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "64 S PRICE RD STE B",
            "city": "BROWNSVILLE",
            "state": "TX",
            "country_code": "US",
            "postal_code": "785212459",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "1284 N Summit Ave",
            "city": "Oconomowoc",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530664459",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "twelsch24782@direct.aurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1284 N Summit Ave",
            "city": "Oconomowoc",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530664459",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Waukesha Medical Services, LLC
• Danielle Marie Waymire, M.D.
• Elizabeth Mary Weil, PHARMD
• Alexandra Weisshaar
• Maggie A Weissman, APNP
• Cheyley Welsh
• Mark R Wessling, MD
• Western Lakes Fire District
• Timothy W Westlake, M.D.
• Wholesome LLC

• Physician Assistant in Oconomowoc, WI
• Providers in Oconomowoc, WI by specialty
• Physician Assistant in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 15, 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.