Katherine Grace McMillen

Primary specialty

Surgical Physician AssistantTaxonomy code 363AS0400X

License

OA007427 Issued in PA

Practice address

145 W 23Rd St Ste 101
Erie, PA 16502-2858

Phone

(814) 454-1142

NPI assigned

Sep 18, 2025

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

Enrolled in PA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kmcmillen864229@direct.ahn.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 Vincent Medical Education and Research Institute Inc

  • Internal Medicine Physician
  • Erie, PA
  • NPI 1902881477
  Medicare reassignment NPD

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

{
    "created_epoch": "1758153600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758153600000",
    "number": "1205708476",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2770 WILLOWOOD DR",
            "city": "ERIE",
            "state": "PA",
            "postal_code": "165065113",
            "telephone_number": "716-800-9820"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "145 W 23RD ST STE 101",
            "city": "ERIE",
            "state": "PA",
            "postal_code": "165022858",
            "telephone_number": "814-454-1142"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMILLEN",
        "first_name": "KATHERINE",
        "middle_name": "GRACE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-09-18",
        "last_updated": "2025-09-18",
        "certification_date": "2025-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "PA",
            "license": "OA007427",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ryan McLoughlin, MD
• Patricia Ann McMahon, PHD, CRNP
• Rebecca McMahon, PHARM D
• McManus Home Healthcare Agency Inc
• Alayna McMenamin, PHARMD
• Margaret Mary McMurtry, DO
• Mary Eileen McNamara, M.D.
• Nicole Lynn McNeal, PA-C
• Jennifer Ann McQuade, M. D.
• Megan Renee McQuaid, PHARMD

• Surgical Physician Assistant in Erie, PA
• Providers in Erie, PA by specialty
• Surgical Physician Assistant in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 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.
• 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.