Gabriel Charles Leis, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

3498 Issued in WI

Practice address

855 N Westhaven Dr
Oshkosh, WI 54904-7668

Phone

(920) 303-8700

NPI assigned

Feb 26, 2007

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 1

Electronic endpoints 4

Medicare fee-for-service enrollment

Enrolled in WI

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Agnesian Healthcare IncGroup PAC ID 1658289624, 392 clinicians

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• SSM Health St Agnes Hospital-Fond Du Lac Hospital, Fond Du Lac, WI, CCN 520088
• Aurora Medical Ctr Oshkosh Hospital, Oshkosh, WI, CCN 520198

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gleis327845@direct.myadvocateaurora.org
• Direct secure messaging: gleis330780@direct-ehr-ssmhc.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.

• Agnesian Healthcare, Inc

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Medicare reassignment Care Compare group NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment Care Compare group
• Green Bay Anesthesia Assoc. SC

  • Anesthesiology Physician
  • Green Bay, WI
  • NPI 1023065836
  Medicare reassignment NPD
• Agnesian Healthcare Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Fond Du Lac, WI
  • NPI 1841320884
  NPD
• Millenium Anesthesiologists, LTD.

  • Anesthesiology Physician
  • Green Bay, WI
  • NPI 1215003082
  NPD (past)

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

• Agnesian Healthcare, Inc

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Care Compare affiliation
• Aurora Medical Center of Oshkosh, Inc

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1275578064
  Care Compare affiliation

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

{
    "created_epoch": "1172448000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1457487092",
    "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": "855 N WESTHAVEN DR",
            "city": "OSHKOSH",
            "state": "WI",
            "postal_code": "549047668",
            "telephone_number": "920-303-8700"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "430 E Division St",
            "address_purpose": "LOCATION",
            "city": "Fond Du Lac",
            "state": "WI",
            "postal_code": "549354560",
            "country_code": "US",
            "telephone_number": "920-926-4920",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEIS",
        "first_name": "GABRIEL",
        "middle_name": "CHARLES",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-26",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WI",
            "license": "3498",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "44347000",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "430 E Division St",
            "city": "Fond Du Lac",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549354560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gleis330780@direct-ehr-ssmhc.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "gleis330780@direct-ehr-ssmhc.com",
            "address_1": "430 E Division St",
            "city": "Fond Du Lac",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549354560",
            "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": "855 N Westhaven Dr",
            "city": "Oshkosh",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549047668",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gleis327845@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "855 N Westhaven Dr",
            "city": "Oshkosh",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549047668",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Karla Leggett, SLP
• Ashley Lehman, MS, BCBA
• Breeanna Lehman, MT
• Dana S Lehrer, APNP
• Cynthia C Leigh, MD
• Erin Leitz, RN
• Ryan Robert Lemberger
• Angela Lemerande, APNP
• Kailey Lynae Lemon, CNA
• John M Leschke, MD

• Certified Registered Nurse Anesthetist in Oshkosh, WI
• Providers in Oshkosh, WI by specialty
• Certified Registered Nurse Anesthetist in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.