Mark A Key, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

143035 Issued in MT

Practice address

500 University Dr
Hershey, PA 17033-2360

Phone

(800) 243-1455

NPI assigned

Dec 5, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 6

Addresses

Other identifiers 3

Other names 1

• Mark Alton Key Other name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in VA, FL, ND, NC, MT, AZ, MD, WY, AL9 enrollments

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 9

Specialty

Physician Assistant

Education

Other, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northern Arizona Healthcare CorporationGroup PAC ID 3577473362, 391 clinicians

RMH Medical Group LLCGroup PAC ID 7618270729, 254 clinicians

Chesapeake Regional Medical GroupGroup PAC ID 8426113663, 148 clinicians

Druid City Physician Services LLCGroup PAC ID 1759776107, 17 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• DCH Regional Medical Center Hospital, Tuscaloosa, AL, CCN 010092
• Cheyenne Regional Medical Center Hospital, Cheyenne, WY, CCN 530014

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Networks

• Optimum HealthCare HMO Network
• Freedom Health HMO Network

Interoperability endpoints

• Direct secure messaging: mkey772370@direct.shands.ufl.edu
• Direct secure messaging: mark.key.1@5072.direct.athenahealth.com
• FHIR API: https://epicproxy.et0761.epichosted.com/FHIRProxy/api/FHIR/R4/
• Direct secure messaging: mkey1211691@valleyhealth.direct-ci.com
• FHIR API: https://api.platform.athenahealth.com/10383/brand/1/csg/1/fhir/r4

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.

• Chesapeake Regional Medical Group

  • Surgery Physician
  • Chesapeake, VA
  • NPI 1699940270

  Physician Assistant

  Medicare reassignment Care Compare group NPD
• Northern Arizona Healthcare Corporation

  • Family Medicine Physician
  • Flagstaff, AZ
  • NPI 1669914552
  Medicare reassignment Care Compare group NPD
• Druid City Physician Services, LLC

  • Maternal & Fetal Medicine Physician
  • Tuscaloosa, AL
  • NPI 1356911564
  Medicare reassignment Care Compare group
• RMH Medical Group LLC

  • General Practice Physician
  • Rockingham, VA
  • NPI 1669844908
  Medicare reassignment Care Compare group
• Benefis Hospitals Inc

  • Multi-Specialty Clinic/Center
  • Great Falls, MT
  • NPI 1780968974
  Medicare reassignment NPD
• Florida Hospital Medical Group Inc

  • Family Medicine Physician
  • Orlando, FL
  • NPI 1225034234

  Physician Assistant

  Medicare reassignment NPD
• The DCH Healthcare Authority

  • General Acute Care Hospital
  • Tuscaloosa, AL
  • NPI 1841394418
  Medicare reassignment NPD
• Winchester Medical Center

  • Critical Care Medicine (Internal Medicine) Physician
  • Winchester, VA
  • NPI 1679711261
  Medicare reassignment NPD
• Valley Physician Enterprise, Inc

  • Surgery Physician
  • Winchester, VA
  • NPI 1538316203
  Medicare reassignment NPD (past)
• Carolinas Physicians Network Inc

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Charlotte, NC
  • NPI 1477878890
  Medicare reassignment
• Cheyenne Regional Physicians Group, LLC

  • Medical Oncology Physician
  • Cheyenne, WY
  • NPI 1659458008
  Medicare reassignment
• Lakeland Regional Health Systems, Inc.

  • Multi-Specialty Clinic/Center
  • Lakeland, FL
  • NPI 1497748743
  Medicare reassignment

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Memorial Hospital of Laramie County

  • General Acute Care Hospital
  • Cheyenne, WY
  • NPI 1285621839
  Care Compare affiliation
• The DCH Health Care Authority

  • Clinic/Center
  • Tuscaloosa, AL
  • NPI 1306613211

  Hospital

  Care Compare affiliation
• The DCH Health Care Authority

  • Clinic/Center
  • Tuscaloosa, AL
  • NPI 1780927681

  Hospital

  Care Compare affiliation
• The DCH Healthcare Authority

  • General Acute Care Hospital
  • Tuscaloosa, AL
  • NPI 1841394418
  Care Compare affiliation

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

{
    "created_epoch": "1165276800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759881600000",
    "number": "1699833145",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 858",
            "city": "HERSHEY",
            "state": "PA",
            "postal_code": "170330858",
            "telephone_number": "800-243-1455"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 UNIVERSITY DR",
            "city": "HERSHEY",
            "state": "PA",
            "postal_code": "170332360",
            "telephone_number": "800-243-1455"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1324 Lakeland Hills Blvd",
            "address_purpose": "LOCATION",
            "city": "Lakeland",
            "state": "FL",
            "postal_code": "338054543",
            "country_code": "US",
            "telephone_number": "863-687-1100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "17021 US Highway 441",
            "address_purpose": "LOCATION",
            "city": "Mount Dora",
            "state": "FL",
            "postal_code": "327576734",
            "country_code": "US",
            "telephone_number": "352-720-7999",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2006 Health Campus Dr Ste 200",
            "address_purpose": "LOCATION",
            "city": "Rockingham",
            "state": "VA",
            "postal_code": "228018679",
            "country_code": "US",
            "telephone_number": "540-689-5555",
            "fax_number": "757-579-8607",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 E Dixie Ave",
            "address_purpose": "LOCATION",
            "city": "Leesburg",
            "state": "FL",
            "postal_code": "347485925",
            "country_code": "US",
            "telephone_number": "352-323-5467",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2 Tampa General Cir",
            "address_purpose": "LOCATION",
            "city": "Tampa",
            "state": "FL",
            "postal_code": "336063571",
            "country_code": "US",
            "telephone_number": "813-821-8038",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KEY",
        "first_name": "MARK",
        "middle_name": "A",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-05",
        "last_updated": "2025-10-08",
        "certification_date": "2025-10-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "FL",
            "license": "PA9112176",
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "DE",
            "license": "C5-0000477",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "VA",
            "license": "0110006202",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MT",
            "license": "143035",
            "primary": true
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "PA",
            "license": "MA002332L",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "DE",
            "license": "C5-0000477",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "104900800",
            "state": "FL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PROFESSIONAL LICENSE",
            "identifier": "C5-0000477",
            "state": "DE"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PA-C LICENSE",
            "identifier": "MA002332L",
            "state": "PA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mkey165354@direct.tgh.org",
            "affiliation": "N",
            "address_1": "2 Tampa General Cir",
            "city": "Tampa",
            "state": "FL",
            "country_code": "US",
            "postal_code": "336063571",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "MARK",
            "last_name": "KEY",
            "middle_name": "ALTON",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Hulya Keskin, MD
• Jolene K Kesler, PA-C
• Meghan Stephanie Kessler, D.O.
• Regan Kessler, PA-C
• Sarah Whitney Kesterson, M.D.
• Muhammad F Khalid, MD
• Fareeha Khalil, MD
• Mohamed Abdelhamid Khalil, PH.D.
• Rafael Ravilyevich Khalitov, MD
• Ali Muhammad Al Mutawakal Khan

• Physician Assistant in Hershey, PA
• Providers in Hershey, PA by specialty
• Physician Assistant in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 8, 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.