Lera O'Sullivan, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

8675620 Issued in WI

Practice address

Uw Health - Gme 600 Highland Ave
Madison, WI 53792-0001

Phone

(608) 263-6400

NPI assigned

Apr 5, 2024

Sex

Female

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: losullivan1075110@direct.unitypoint.org

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.

• St Luke'S Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD

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

{
    "created_epoch": "1712275200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769126400000",
    "number": "1245082866",
    "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",
            "telephone_number": "608-263-6400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "UW HEALTH - GME 600 HIGHLAND AVE",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537920001",
            "telephone_number": "608-263-6400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'SULLIVAN",
        "first_name": "LERA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-04-05",
        "last_updated": "2026-01-23",
        "certification_date": "2026-01-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "8675620",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ryan O O'Neill, PA-C
• Sean M O'Neill, M.D.
• Afton M O'Reilly, PT
• Ann P. O'Rourke, M.D.
• Emily Joelle O'Sullivan, MS, OTR/L
• Kristan O'Toole
• Oak Leaf Psychotherapy, S.C.
• Oak Park Nursing and Rehab Center LLC
• Oak Park Place of Nakoma, LLC
• Karen R. Oakes, PA

• All providers in Madison, WI
• Emergency Medicine Physician in Wisconsin

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

Verify at the official NPI Registry.