Individual provider Active NPI

William Robert Jahnke II, MD

  • Nephrology Physician
  • St Paul, MN
National Provider Identifier
1013974336
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
25020 Issued in MN
Practice address
360 Sherman St
Ste 250
St Paul, MN 55102-2594
Phone
(651) 772-6251
Fax
(651) 224-9661
NPI assigned
Apr 28, 2006
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 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 25020 MN
Nephrology Physician 207RN0300X 25020 MN Primary

Addresses

Primary practice location

360 Sherman St
Ste 250
St Paul, MN 55102-2594

Mailing address

1959 Sloan Place
Ste 200
St Paul, MN 55117-2074
Phone (651) 772-6251

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)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
25020MNMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Associated Nephrology Consultants, P.a. Nephrology CurrentSince Oct 16, 1980 Accepting new patients
St. Paul Infectious Disease Associates, LTD. Past Accepting new patients

Locations

1997 Sloan Pl
Ste 17
Saint Paul, MN 55117
Phone (651) 772-6251

360 Sherman St
Ste 250
Saint Paul, MN 55102
Phone (651) 772-6251

Interoperability endpoints

  • FHIR API: https://fhir-myrecord.cerner.com/r4/3y297hHso-SAgtaVMIScpv67gSH7SYy3/

Organizations & group practices 2

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": "1146182400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1013974336",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1959 SLOAN PLACE",
            "address_2": "STE 200",
            "city": "ST PAUL",
            "state": "MN",
            "postal_code": "551172074",
            "telephone_number": "651-772-6251",
            "fax_number": "651-224-9661"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "360 SHERMAN ST",
            "address_2": "STE 250",
            "city": "ST PAUL",
            "state": "MN",
            "postal_code": "551022594",
            "telephone_number": "651-772-6251",
            "fax_number": "651-224-9661"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JAHNKE",
        "first_name": "WILLIAM",
        "middle_name": "ROBERT",
        "name_suffix": "II",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-28",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MN",
            "license": "25020",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MN",
            "license": "25020",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in St Paul, MN

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.