Individual provider Active NPI

Nathan Alan Carlson, MD

  • Trauma Surgery Physician
  • Milwaukee, WI
National Provider Identifier
1639389653
Registry record updated Mar 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Trauma Surgery PhysicianTaxonomy code 2086S0127X
License
71945 Issued in WI
Practice address
9200 W Wisconsin Ave
Trauma Surgery
Milwaukee, WI 53226-3522
Phone
(414) 805-8623
Fax
(414) 805-8641
NPI assigned
May 22, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 9, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Critical Care Physician 2086S0102X 63765 GA
Surgical Critical Care Physician 2086S0102X 71945 WI
Trauma Surgery Physician 2086S0127X 71945 WI Primary

Addresses

Primary practice location

9200 W Wisconsin Ave
Trauma Surgery
Milwaukee, WI 53226-3522

Mailing address

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522
Phone (414) 805-8623

Other practice location 1

300 W Hospital Rd
Eisenhower Army Medical Center Attn Credentials
Fort Gordon, GA 30905-5741
Phone (706) 787-2720

Other practice location 2

W180N8000 Town Hall Rd
Menomonee Falls, WI 53051-4002
Phone (262) 255-2500

Other practice location 3

980 Johnson Fy Rd NE Ste 880
Atlanta, GA 30342-1609
Phone (404) 255-8304

Other practice location 4

9200 W Wisconsin Avenue
Surgical Critical Care
Milwaukee, WI 53226-3522
Phone (414) 855-6900

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
I20191014002205 WI Practitioner - General Surgery 7113258641 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Medical College of Wisconsin, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Medical College of Wisconsin IncGroup PAC ID 2668384371, 2,092 clinicians

Practice addresses (Care Compare)

8701 W Watertown Plank
Milwaukee, WI 53226-3548
Phone (414) 805-3666

8701 Watertown Plank Rd
Room 4041 MFRC
Milwaukee, WI 53226-3548
Phone (414) 805-3666

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Upper gastrointestinal (GI) endoscopy for acid reflux1-10
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
63765GAMDSurgical Critical Care Physician
71945WIMDSurgical Critical Care Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Aug 13, 2023 Accepting new patients
The Medical College of Wisconsin, Inc. Surgery CurrentSince Sep 20, 2019 Accepting new patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Aug 13, 2023 Accepting new patients
The Medical College of Wisconsin Inc Past Accepting new patients

Locations

W168N11237 Western Ave
Germantown, WI 53022
Phone (262) 253-5060

W180N8000 Town Hall Rd
Menomonee Falls, WI 53051
Phone (262) 255-2500

N74W12501 Leatherwood Ct
Menomonee Falls, WI 53051
Phone (414) 454-4744

9200 W Wisconsin Ave
Wauwatosa, WI 53226
Phone (414) 259-3000

1155 N Mayfair Rd
Wauwatosa, WI 53226
Phone (414) 955-5990

8701 Watertown Plank Rd
Wauwatosa, WI 53226
Phone (414) 456-4100

Interoperability endpoints

  • Direct secure messaging: ncarlson335147@direct.froedtert.com

Organizations & group practices 4

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.

Hospital & facility affiliations 1

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": "1179792000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773014400000",
    "number": "1639389653",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-8623",
            "fax_number": "414-805-8641"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "address_2": "TRAUMA SURGERY",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-8623",
            "fax_number": "414-805-8641"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 W Hospital Rd",
            "address_2": "Eisenhower Army Medical Center Attn Credentials",
            "address_purpose": "LOCATION",
            "city": "Fort Gordon",
            "state": "GA",
            "postal_code": "309055741",
            "country_code": "US",
            "telephone_number": "706-787-2720",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "W180N8000 Town Hall Rd",
            "address_purpose": "LOCATION",
            "city": "Menomonee Falls",
            "state": "WI",
            "postal_code": "530514002",
            "country_code": "US",
            "telephone_number": "262-255-2500",
            "fax_number": "262-253-9501",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "980 Johnson Fy Rd NE Ste 880",
            "address_purpose": "LOCATION",
            "city": "Atlanta",
            "state": "GA",
            "postal_code": "303421609",
            "country_code": "US",
            "telephone_number": "404-255-8304",
            "fax_number": "404-256-4578",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9200 W Wisconsin Avenue",
            "address_2": "Surgical Critical Care",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532263522",
            "country_code": "US",
            "telephone_number": "414-855-6900",
            "fax_number": "414-955-0079",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CARLSON",
        "first_name": "NATHAN",
        "middle_name": "ALAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-22",
        "last_updated": "2026-03-09",
        "certification_date": "2026-03-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "GA",
            "license": "63765",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "WI",
            "license": "71945",
            "primary": false
        },
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "WI",
            "license": "71945",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Milwaukee, WI

Sources for this page

Verify at the official NPI Registry.