David Alexander Deemer, MD

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

81227 Issued in WI

Practice address

5249 E Terrace Dr
Madison, WI 53718-8339

Phone

(608) 265-1210

NPI assigned

Apr 1, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

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

Specialty

Internal Medicine

Education

Loma Linda University School of Medicine, 2021

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": "1617235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784764800000",
    "number": "1528646189",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7974 UW HEALTH CT",
            "city": "MIDDLETON",
            "state": "WI",
            "postal_code": "535625531"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5249 E TERRACE DR",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537188339",
            "telephone_number": "608-265-1210"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "17 E 102nd St Fl 4",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "10029",
            "country_code": "US",
            "telephone_number": "212-659-8552",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Gustave L Levy Pl # 1070",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100296504",
            "country_code": "US",
            "telephone_number": "212-241-6500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DEEMER",
        "first_name": "DAVID",
        "middle_name": "ALEXANDER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-01",
        "last_updated": "2026-07-23",
        "certification_date": "2026-07-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hospice and Palliative Medicine",
            "state": "WI",
            "license": "81227",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "81227-20",
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "WI",
            "license": "81227",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Colleen M Decorah, R.N.
• Brittany Jean Decoteau, LCSW, CSAC
• Ashley Dederich, PTA
• Timothy Dedering
• Jean Dedie
• Deen Transit Solutions LLC
• Susan M Deeren, RN, MS, APNP
• Jennifer Anne Defever, PHARMD
• Patricia L Deffner-Valley
• Donna B Defoe, LCSW

• Geriatric Medicine (Internal Medicine) Physician in Madison, WI
• Providers in Madison, WI by specialty
• Geriatric Medicine (Internal Medicine) Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 23, 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.