Sean Medard Parker, MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

73552 Issued in TN

Practice address

1635 Gunbarrel Rd Ste 100
Chattanooga, TN 37421-4983

Phone

(423) 778-8525

NPI assigned

Mar 22, 2020

Last updated

Aug 27, 2026By the provider in NPPES

Sex

Male

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 TN, GA2 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

West Virginia University School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Memorial Health Partners Foundation IncGroup PAC ID 8022919570, 458 clinicians

Tennessee Oncology PLLCGroup PAC ID 4688586134, 355 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Erlanger Medical Center Hospital, Chattanooga, TN, CCN 440104
• Memorial Healthcare System, Inc Hospital, Chattanooga, TN, CCN 440091
• Commonspirit-Memorial Hospital-North Georgia Hospital, Ringgold, GA, CCN 110236

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: sparker455262@direct.stlukeshealth.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Memorial Health Partners Foundation, Inc

  • Internal Medicine Physician
  • Chattanooga, TN
  • NPI 1922053545

  GA

  Medicare reassignment Care Compare group NPD
• Tennessee Oncology PLLC

  • Hematology & Oncology Physician
  • Nashville, TN
  • NPI 1811955917
  Medicare reassignment Care Compare group NPD
• Tennessee Oncology,PLLC

  • Radiation Oncology Physician
  • Nashville, TN
  • NPI 1164595070

  GA

  Medicare reassignment NPD
• Memorial Health Partners Foundation Inc

  dba CHI Memorial Family Practice Associates - Lafayette

  • Rural Health Clinic/Center
  • La Fayette, GA
  • NPI 1760632780
  NPD
• Tennessee Oncology PLLC

  • Radiation Oncology Clinic/Center
  • Franklin, TN
  • NPI 1942909585
  NPD (past)

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

• Erlanger Health

  • General Acute Care Hospital
  • Chattanooga, TN
  • NPI 1861194086
  Care Compare affiliation
• Memorial Health Care System Inc.

  dba Memorial Hospital Hixson

  • General Acute Care Hospital
  • Hixson, TN
  • NPI 1083778633
  Care Compare affiliation
• Memorial Health Care System Inc.

  dba Memorial Hospital

  • General Acute Care Hospital
  • Chattanooga, TN
  • NPI 1255428736
  Care Compare affiliation
• CHI Memorial Hospital - Georgia

  • General Acute Care Hospital
  • Ringgold, GA
  • NPI 1356860621
  Care Compare affiliation

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

{
    "created_epoch": "1584835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787788800000",
    "number": "1003442955",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2004 HAYES ST STE 800",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372032659",
            "telephone_number": "615-329-0570"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1635 GUNBARREL RD STE 100",
            "city": "CHATTANOOGA",
            "state": "TN",
            "postal_code": "374214983",
            "telephone_number": "423-778-8525"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PARKER",
        "first_name": "SEAN",
        "middle_name": "MEDARD",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-22",
        "last_updated": "2026-08-27",
        "certification_date": "2026-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "TN",
            "license": "73552",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Reglindis Parker, PMHNP
• Robert Peyton Parker, MD
• Ronnisha Parker
• Sara J Parker, R.N.
• Sarah Lynae Parker, NP
• Parkridge East Specialty Associates LLC
• Parkridge Medical Center, Inc. (Parkridge Valley Hospital)
• Parkridge Medical Center, Inc. (Parkridge Medical Center)
• Parkridge Medical Center, Inc. (Parkridge East Hospital)
• Parkridge Medical Center, Inc. (Parkridge North ER, a department of Parkridge Medical Center)

• Radiation Oncology Physician in Chattanooga, TN
• Providers in Chattanooga, TN by specialty
• Radiation Oncology Physician in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 27, 2026; 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.