Individual provider Active NPI

Alexander Jordon Johnston, MD

  • Internal Medicine Physician
  • Milwaukee, WI
National Provider Identifier
1528761335
Registry record updated Jun 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
86861-20 Issued in WI
Practice address
8701 Watertown Plank Rd
Milwaukee, WI 53226-3548
Phone
(414) 955-4575
NPI assigned
Mar 22, 2023
Last updated
Jun 27, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 27, 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 4301516895 MI
Internal Medicine Physician 207R00000X 86861-20 WI Primary

Addresses

Primary practice location

8701 Watertown Plank Rd
Milwaukee, WI 53226-3548

Mailing address

8701 Watertown Plank Rd
Milwaukee, WI 53226-3548
Phone (414) 955-4575

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
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
I20230825002872 MI Order and Referring Only - Internal MedicinePractitioner - Internal Medicine 1557724325

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
4301516895MIMDInternal Medicine Physician
86861-20WIMDInternal Medicine Physician

Interoperability endpoints

  • Direct secure messaging: ajohnston1056224@direct.hfhs.org

NPI Registry JSON

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

{
    "created_epoch": "1679443200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782518400000",
    "number": "1528761335",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8701 WATERTOWN PLANK RD",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263548",
            "telephone_number": "414-955-4575"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8701 WATERTOWN PLANK RD",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263548",
            "telephone_number": "414-955-4575"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHNSTON",
        "first_name": "ALEXANDER",
        "middle_name": "JORDON",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-22",
        "last_updated": "2026-06-27",
        "certification_date": "2026-06-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301516895",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "86861-20",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Milwaukee, WI

Sources for this page

Verify at the official NPI Registry.