Kathryn Marqueen, MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

0101286557 Issued in VA

Practice address

8081 Innovation Park Dr
Fairfax, VA 22031-4867

Phone

(571) 472-0606

NPI assigned

Apr 24, 2020

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 DC, VA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Radiation Oncology

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Radiation Oncology Associates PCGroup PAC ID 1254302359, 22 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Inova Fairfax Hospital Hospital, Falls Church, VA, CCN 490063
• Inova Alexandria Hospital Hospital, Alexandria, VA, CCN 490040
• Inova Fair Oaks Hospital Hospital, Fairfax, VA, CCN 490101
• Inova Loudoun Hospital Hospital, Leesburg, VA, CCN 490043

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Radiation Oncology Associates, PC

  • Radiation Oncology Physician
  • Fairfax, VA
  • NPI 1013962836

  DC

  Medicare reassignment Care Compare group NPD

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

• Inova Health Care Services

  • General Acute Care Hospital
  • Alexandria, VA
  • NPI 1255684460
  Care Compare affiliation
• Inova Health Care Services

  • Psychiatric Hospital Unit
  • Leesburg, VA
  • NPI 1285786228
  Care Compare affiliation
• Inova Health Care Services

  • General Acute Care Hospital
  • Leesburg, VA
  • NPI 1376564302
  Care Compare affiliation
• Inova Health Care Services

  • Rehabilitation Hospital Unit
  • Falls Church, VA
  • NPI 1588795462
  Care Compare affiliation
• Inova Health Care Services

  • General Acute Care Hospital
  • Fairfax, VA
  • NPI 1760513980
  Care Compare affiliation
• Inova Health Care Services

  • General Acute Care Hospital
  • Falls Church, VA
  • NPI 1831220714
  Care Compare affiliation

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

{
    "created_epoch": "1587686400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754870400000",
    "number": "1427678945",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8081 INNOVATION PARK DR",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220314867"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8081 INNOVATION PARK DR",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220314867",
            "telephone_number": "571-472-0606"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARQUEEN",
        "first_name": "KATHRYN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-04-24",
        "last_updated": "2025-08-11",
        "certification_date": "2025-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "VA",
            "license": "0101286557",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Andrea Rae Markway, AUD, CCC-A
• Marna Rowe Counseling LLC
• Leslie Maron, LPC, LCPC
• Nicholas James Marotta, O.D.
• Sandra Kay Marotta, OD
• Jeanne Marie Marquis, PHD
• Maria S Marris
• Christopher Robert Marrow, PT
• Amy Marshall
• Emily A Marshall, MS, OTR/L

• Radiation Oncology Physician in Fairfax, VA
• Providers in Fairfax, VA by specialty
• Radiation Oncology Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 11, 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.