Kassandra Michelle Hardtke, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

9845 Issued in AZ

Practice address

1500 S Dobson Rd Ste 202
Mesa, AZ 85202-4724

Phone

(866) 974-2673

Fax

(866) 939-2673

NPI assigned

Sep 13, 2021

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 identifiers 1

Other names 1

• Kassandra Michelle Kernagis Other name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in IN, AZ2 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 2

Specialty

Physician Assistant

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Center for Orthopedic Research and Education LLCGroup PAC ID 0345287322, 247 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• The Core Institute Specialty Hosp Hospital, Phoenix, AZ, CCN 030108

Merit-based Incentive Payment System (MIPS)

Final score

85.65 of 100Reported as group

Quality

76.23

Promoting interoperability

100

Improvement activities

40

Cost

75.95

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kassandra.hardtke.1@22724.direct.athenahealth.com

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.

• Center for Orthopedic Research and Education, LLC

  dba The CORE Institute

  • Orthopaedic Surgery Physician
  • Phoenix, AZ
  • NPI 1427095801

  Physician Assistant

  Medicare reassignment Care Compare group NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Terre Haute, IN
  • NPI 1285103671
  Medicare reassignment
• Cep America LLC

  • Emergency Medicine Physician
  • Fort Lauderdale, FL
  • NPI 1700747946
  NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Mishawaka, IN
  • NPI 1811796006
  NPD

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

• Surgical Specialty Hospital of Arizona, LLC

  dba The Core Institute Specialty Hospital

  • Special Hospital
  • Phoenix, AZ
  • NPI 1902881295
  Care Compare affiliation

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

{
    "created_epoch": "1631491200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1790454775",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "18444 N 25TH AVE STE 310",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850231266",
            "telephone_number": "669-742-6738",
            "fax_number": "866-939-2673"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 S DOBSON RD STE 202",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852024724",
            "telephone_number": "866-974-2673",
            "fax_number": "866-939-2673"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARDTKE",
        "first_name": "KASSANDRA",
        "middle_name": "MICHELLE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-09-13",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IN",
            "license": "10003485A",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "AZ",
            "license": "9845",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "132972",
            "state": "AZ"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "Epic",
            "affiliation": "N",
            "address_1": "8701 Broadway",
            "city": "Merrillville",
            "state": "IN",
            "country_code": "US",
            "postal_code": "464107035",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "KASSANDRA",
            "last_name": "KERNAGIS",
            "middle_name": "MICHELLE",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Jennifer Lynn Harding, RDH
• Josie Harding, ATC
• Kim Jared Harding, MA CCC-SLP
• Steven R Hardman, RPH
• Meredith Angelee Hardt, AG ACNP-BC
• Melissa E Hardy, RBT
• Spencer Hardy, DPM
• Travis Hardy, LPC
• Charles Matthew Jason Harger
• Cindyann Harjo, RBT

• Physician Assistant in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Physician Assistant in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 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.