Individual provider Active NPI

Mason Edward Mocarski, MD

  • Advanced Heart Failure and Transplant Cardiology Physician
  • Milwaukee, WI
National Provider Identifier
1831650191
Registry record updated Aug 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Advanced Heart Failure and Transplant Cardiology PhysicianTaxonomy code 207RA0001X
License
86694-20 Issued in WI
Practice address
2900 W Oklahoma Ave
Milwaukee, WI 53215-4330
Phone
(414) 646-2438
NPI assigned
Mar 28, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 26, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Advanced Heart Failure and Transplant Cardiology Physician 207RA0001X 86694-20 WI Primary

Addresses

Primary practice location

2900 W Oklahoma Ave
Milwaukee, WI 53215-4330

Mailing address

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

Other practice location 1

395 W 12th Ave Fl 3
Columbus, OH 43210-1267
Phone (614) 293-3989

Other identifiers 1

IdentifierTypeStateIssuer
100415928MedicaidWI

Electronic endpoints 3

TypeEndpointUseAffiliation
CONNECT URL https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0 Other Ability Network
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address mmocarski461040@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
I20260615000955 WI Practitioner - Advanced Heart Failure and Transplant Cardiology 0648504696

Care Compare profile

Medicare Care Compare
Specialty
Advanced Heart Failure and Transplant Cardiology
Education
Other, 2019
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

PO Box
Chicago, IL 60673

PO Box
Suite 735044
Chicago, IL 60673-5044

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Lima Memorial Joint Operating Company Past Accepting new patients

Organizations & group practices 1

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": "1553731200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787702400000",
    "number": "1831650191",
    "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": "2900 W OKLAHOMA AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532154330",
            "telephone_number": "414-646-2438"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "395 W 12th Ave Fl 3",
            "address_purpose": "LOCATION",
            "city": "Columbus",
            "state": "OH",
            "postal_code": "432101267",
            "country_code": "US",
            "telephone_number": "614-293-3989",
            "fax_number": "614-293-9789",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MOCARSKI",
        "first_name": "MASON",
        "middle_name": "EDWARD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-28",
        "last_updated": "2026-08-26",
        "certification_date": "2026-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RA0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Advanced Heart Failure and Transplant Cardiology",
            "state": "WI",
            "license": "86694-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100415928",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.667.2",
            "affiliationName": "Ability Network",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": ": CMS esMD eMDR",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "2900 W Oklahoma Ave",
            "city": "Milwaukee",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532154330",
            "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": "2900 W Oklahoma Ave",
            "city": "Milwaukee",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532154330",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmocarski461040@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2900 W Oklahoma Ave",
            "city": "Milwaukee",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532154330",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Milwaukee, WI

Sources for this page

Verify at the official NPI Registry.