Matthew James Merwin

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

101677-851 Issued in WI

Practice address

Uw Hospitals and Clinics 600 Highland Ave
Madison, WI 53792-0001

Phone

(608) 263-6400

NPI assigned

Apr 7, 2025

Last updated

Jun 30, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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 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

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1743984000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1801680517",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "UW HOSPITALS AND CLINICS 600 HIGHLAND AVE",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537920001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "UW HOSPITALS AND CLINICS 600 HIGHLAND AVE",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537920001",
            "telephone_number": "608-263-6400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERWIN",
        "first_name": "MATTHEW",
        "middle_name": "JAMES",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-04-07",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "101677-851",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sophia Merten
• Emily Ann Mertens
• Jennifer L Mertes
• Grace Nicole Mertz
• Mallorie Mertz, MSW, APSW
• Rebecca Sarah Merzke
• Tomaz Mesar, M.D.
• Kali R Mesdjian, APNP
• Marium Mesia
• Anne Olivia Mesich, L.P.C., C.R.C., M.S.

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.