Melissa Williamson, AGAC-NP

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

348259 Issued in OH

Practice address

4100 W 3Rd St
Dayton, OH 45428-9000

Phone

(937) 268-6511

NPI assigned

Dec 20, 2018

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

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Lima Memorial Joint Operating Company

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732
  NPD (past)

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

{
    "created_epoch": "1545264000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781481600000",
    "number": "1972075471",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4100 W 3RD ST",
            "city": "DAYTON",
            "state": "OH",
            "postal_code": "454289000",
            "telephone_number": "937-268-6511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4100 W 3RD ST",
            "city": "DAYTON",
            "state": "OH",
            "postal_code": "454289000",
            "telephone_number": "937-268-6511"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "MELISSA",
        "credential": "AGAC-NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-12-20",
        "last_updated": "2026-06-15",
        "certification_date": "2026-06-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "OH",
            "license": "348259",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Zina Marie Williams, NURSE PRACTITIONER
• Cassandra Lynn Williamson, PA
• Hilary Williamson
• Lashawn Williamson
• Latesa Williamson
• Stephanie Williamson
• Sarah A Willin, COTA/L
• Mark Willinger, O.D.
• Carly G Willis
• Cassandra L Willis

• Acute Care Nurse Practitioner in Dayton, OH
• Providers in Dayton, OH by specialty
• Acute Care Nurse Practitioner in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.