NPIMap

Individual provider Active NPI

Mitchell R Elgin, D.O.

  • Hospitalist Physician
  • Grafton, WI
National Provider Identifier
1528421369
Registry record updated Jul 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
72951-21 Issued in WI
Practice address
975 Port Washington Rd
Grafton, WI 53024-9201
Phone
(262) 329-1000
NPI assigned
Mar 30, 2016
Last updated
Jul 24, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 24, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 72951-21 WI
Hospitalist Physician 208M00000X 72951-21 WI Primary

Addresses

Primary practice location

975 Port Washington Rd
Grafton, WI 53024-9201

Mailing address

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

Other identifiers 1

IdentifierTypeStateIssuer
100101834MedicaidWI

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address melgin278570@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20200730000775 WI Practitioner - HospitalistPractitioner - Internal Medicine 4082039623 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
William Carey University College of Osteopathic Medicine, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians

Practice addresses (Care Compare)

975 Port Washington Rd
Grafton, WI 53024-9204
Phone (262) 329-8650

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
72951-21WIMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Lakeshore Medical Clinic, LLC CurrentSince Dec 1, 2020 Accepting new patients
Aurora Advanced Healthcare, Inc. Internal Medicine CurrentSince Dec 9, 2020 Accepting new patients
Aurora Medical Group, Inc. CurrentSince Aug 24, 2020 Accepting new patients
Aurora Medical Group, Inc. Internal Medicine CurrentSince Aug 24, 2020 Accepting new patients
Aurora Advanced Healthcare Inc CurrentSince Dec 9, 2020 Accepting new patients

Locations

3003 W Good Hope Rd
Glendale, WI 53209
Phone (414) 352-3100

975 Port Washington Rd
Grafton, WI 53024
Phone (262) 329-1000

12203 N Corporate Pkwy
Mequon, WI 53092
Phone (262) 387-8200

1020 N 12th St
Milwaukee, WI 53233
Phone (414) 219-3056

3301 W Forest Home Ave
Milwaukee, WI 53215
Phone (414) 389-2233

S74W16775 Janesville Rd
Muskego, WI 53150
Phone (414) 422-4747

2000 E Layton Ave
St Francis, WI 53235
Phone (414) 744-7880

Interoperability endpoints

  • Direct secure messaging: melgin278570@direct.myadvocateaurora.org

Organizations & group practices 5

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.

Hospital & facility affiliations 7

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

NPI Registry JSON

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

{
    "created_epoch": "1459296000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784851200000",
    "number": "1528421369",
    "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": "975 PORT WASHINGTON RD",
            "city": "GRAFTON",
            "state": "WI",
            "postal_code": "530249201",
            "telephone_number": "262-329-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ELGIN",
        "first_name": "MITCHELL",
        "middle_name": "R",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-03-30",
        "last_updated": "2026-07-24",
        "certification_date": "2026-07-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "72951-21",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WI",
            "license": "72951-21",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100101834",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "melgin278570@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "975 Port Washington Rd",
            "city": "Grafton",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530249201",
            "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": "975 Port Washington Rd",
            "city": "Grafton",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530249201",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Grafton, WI

Sources for this page

Verify at the official NPI Registry.