Individual provider Active NPI

Leo Treysman, M.D.

  • Emergency Medicine Physician
  • Hartford, WI
National Provider Identifier
1184838575
Registry record updated May 31, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
2022 Issued in WI
Practice address
1032 E Sumner St
Hartford, WI 53027-1608
Phone
(262) 673-2300
NPI assigned
May 9, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 31, 2024

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 036-124362 IL
Emergency Medicine Physician 207P00000X 2022 WI Primary

Addresses

Primary practice location

1032 E Sumner St
Hartford, WI 53027-1608

Mailing address

PO Box 735044
Chicago, IL 60673-5044
Phone (800) 326-2250

Other practice location 1

1740 W Taylor St
Chicago, IL 60612-7232
Phone (866) 600-2273

Other practice location 2

2661 County Highway I
Chippewa Falls, WI 54729-5407
Phone (715) 723-1811

Other practice location 3

900 W Clairemont Ave
Eau Claire, WI 54701-6122
Phone (715) 717-4121

Other identifiers 1

IdentifierTypeStateIssuer
100015773MedicaidWI

Electronic endpoints 3

TypeEndpointUseAffiliation
Direct Messaging Address ltreysman347674@direct.froedtert.com Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address ltreysman397357@direct.myadvocateaurora.org Direct

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20110705000456 WI Practitioner - Emergency Medicine 3476689605 Reassigns benefits to 3 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
2022WIMDIntegrative Medicine Physician
036-124362ILMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Ascension Calumet Hospital, Inc CurrentSince Nov 1, 2021 Accepting new patients
CGH Medical Center Past Accepting new patients

Locations

1506 S Oneida St
Appleton, WI 54915
Phone (920) 730-4950

614 Memorial Dr
Chilton, WI 53014
Phone (800) 458-4042

500 S Oakwood Rd
Oshkosh, WI 54904
Phone (920) 223-0501

Interoperability endpoints

  • Direct secure messaging: ltreysman347674@direct.froedtert.com

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1178668800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1717113600000",
    "number": "1184838575",
    "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": "1032 E SUMNER ST",
            "city": "HARTFORD",
            "state": "WI",
            "postal_code": "530271608",
            "telephone_number": "262-673-2300"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1740 W Taylor St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606127232",
            "country_code": "US",
            "telephone_number": "866-600-2273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2661 County Highway I",
            "address_purpose": "LOCATION",
            "city": "Chippewa Falls",
            "state": "WI",
            "postal_code": "547295407",
            "country_code": "US",
            "telephone_number": "715-723-1811",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "900 W Clairemont Ave",
            "address_purpose": "LOCATION",
            "city": "Eau Claire",
            "state": "WI",
            "postal_code": "547016122",
            "country_code": "US",
            "telephone_number": "715-717-4121",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TREYSMAN",
        "first_name": "LEO",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-09",
        "last_updated": "2024-05-31",
        "certification_date": "2024-05-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036-124362",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "2022",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100015773",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ltreysman347674@direct.froedtert.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "6308 8th Ave",
            "city": "Kenosha",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531435031",
            "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": "1032 E Sumner St",
            "city": "Hartford",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530271608",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ltreysman397357@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1032 E Sumner St",
            "city": "Hartford",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530271608",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Hartford, WI

Sources for this page

Verify at the official NPI Registry.