Individual provider Active NPI

Michael S Hein, MD

  • Internal Medicine Physician
  • Yankton, SD
National Provider Identifier
1346241148
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
4854 Issued in SD
Practice address
1104 W 8TH St
Yankton, SD 57078-3306
Phone
(605) 665-7841
Fax
(605) 665-0546
NPI assigned
Aug 3, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 4854 SD Primary

Addresses

Primary practice location

1104 W 8TH St
Yankton, SD 57078-3306

Mailing address

1104 W 8TH St
Yankton, SD 57078-3306
Phone (605) 665-7841

Other identifiers 1

IdentifierTypeStateIssuer
6004200MedicaidSD

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
4854SDMDInternal Medicine Physician

NPI Registry JSON

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

{
    "created_epoch": "1123027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1346241148",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1104 W 8TH ST",
            "city": "YANKTON",
            "state": "SD",
            "postal_code": "570783306",
            "telephone_number": "605-665-7841",
            "fax_number": "605-665-0546"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1104 W 8TH ST",
            "city": "YANKTON",
            "state": "SD",
            "postal_code": "570783306",
            "telephone_number": "605-665-7841",
            "fax_number": "605-665-0546"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HEIN",
        "first_name": "MICHAEL",
        "middle_name": "S",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "SD",
            "license": "4854",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "6004200",
            "state": "SD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Yankton, SD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.