Individual provider Active NPI

George Matthew Mussman, MD

  • Pediatrics Physician
  • Lake Geneva, WI
National Provider Identifier
1881398170
Registry record updated Sep 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
125.081966 Issued in IL
Practice address
N2950 State Road 67
Lake Geneva, WI 53147-2655
Phone
(262) 245-0535
NPI assigned
Mar 29, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 1, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 125.081966 IL Primary
Pediatrics Physician 208000000X 036.177887 IL
Pediatrics Physician 208000000X 87674-20 WI

Addresses

Primary practice location

N2950 State Road 67
Lake Geneva, WI 53147-2655

Mailing address

N2950 State Road 67
Lake Geneva, WI 53147-2655

Medicare participation

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

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
New York Medical College, 2023
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

2400 N Rockton Ave
Rockford, IL 61103-3655

29624 Network PL
Chicago, IL 60673-1296

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
125.081966ILMDPediatrics Physician

NPI Registry JSON

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

{
    "created_epoch": "1680048000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1881398170",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "N2950 STATE ROAD 67",
            "city": "LAKE GENEVA",
            "state": "WI",
            "postal_code": "531472655"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "N2950 STATE ROAD 67",
            "city": "LAKE GENEVA",
            "state": "WI",
            "postal_code": "531472655",
            "telephone_number": "262-245-0535"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MUSSMAN",
        "first_name": "GEORGE",
        "middle_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-29",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IL",
            "license": "125.081966",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IL",
            "license": "036.177887",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "WI",
            "license": "87674-20",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lake Geneva, WI

Sources for this page

Verify at the official NPI Registry.