Karlee L Messner, RN

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

SP034398 Issued in PA

Practice address

200 Lothrop St
Pittsburgh, PA 15213-2536

Phone

(412) 647-2345

NPI assigned

Aug 26, 2025

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Karlee L Stroup Former name

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

Nurse Practitioner

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Registered Nurse

State licenses

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.

• University of Pittsburgh Physicians

  • Gastroenterology Physician
  • Pittsburgh, PA
  • NPI 1619935004
  Medicare reassignment

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

{
    "created_epoch": "1756166400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764892800000",
    "number": "1134007149",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2308 OLD ROUTE 422 E",
            "city": "FENELTON",
            "state": "PA",
            "postal_code": "160349725",
            "telephone_number": "724-679-3554"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 LOTHROP ST",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152132536",
            "telephone_number": "412-647-2345"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MESSNER",
        "first_name": "KARLEE",
        "middle_name": "L",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-08-26",
        "last_updated": "2025-12-05",
        "certification_date": "2025-12-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "PA",
            "license": "RN675724",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "PA",
            "license": "SP034398",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KARLEE",
            "last_name": "STROUP",
            "middle_name": "L",
            "credential": "RN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Lauren Marie Messick, DO
• Teresa Messick
• Jessica Ellen Messier, MD, PHD
• Kristine Messmer, PSY.D
• Danielle Messner, LMFT
• Ryan Mest, PHD
• Sara J Mester, PAC
• Lindsey Meston, PHARMD
• Pauline Mary Meta, CPD
• Jeffrey Meth, DC

• Acute Care Nurse Practitioner in Pittsburgh, PA
• Providers in Pittsburgh, PA by specialty
• Acute Care Nurse Practitioner in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 5, 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.