Andrew Jonathon Geiser, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

125081849 Issued in IL

Practice address

801 S Milwaukee Ave
Libertyville, IL 60048-3204

Phone

(847) 362-2900

NPI assigned

Aug 29, 2019

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

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

Specialty

Emergency Medicine

Education

Other, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1567036800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782950400000",
    "number": "1891343133",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "801 S MILWAUKEE AVE",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600483204",
            "telephone_number": "847-362-2900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "801 S MILWAUKEE AVE",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600483204",
            "telephone_number": "847-362-2900"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GEISER",
        "first_name": "ANDREW",
        "middle_name": "JONATHON",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-08-29",
        "last_updated": "2026-07-02",
        "certification_date": "2026-07-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "125081849",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katelin Gartner
• Gastroenterologists LTD
• Gastroenterology Consultants of Libertyville LTD
• Geetha M Reddy S C (Geetha M Reddy MD F A C C)
• Eric J Geiselman
• Julia Gekhter, LCSW
• George B. Elvove, M.D., PC
• George Hvostik, MD, S.C.
• Gerald
• Glen Dwayne Gerdes, MS, ATC

• Emergency Medicine Physician in Libertyville, IL
• Providers in Libertyville, IL by specialty
• Emergency Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.