Ralph Maroun, MD

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

64455 Issued in TN

Practice address

1850 Town Center Pkwy
Reston, VA 20190-3204

Phone

(703) 689-9000

NPI assigned

Jul 29, 2016

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in DC

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 1

Specialty

Critical Care (Intensivists)Also: Internal Medicine, Pulmonary Disease

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Intensive Care Consortium IncGroup PAC ID 0244269413, 485 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Methodist Medical Center of Oak Ridge Hospital, Oak Ridge, TN, CCN 440034
• Reston Hospital Center Hospital, Reston, VA, CCN 490107
• Parkwest Medical Center Hospital, Knoxville, TN, CCN 440173
• Fort Sanders Regional Medical Center Hospital, Knoxville, TN, CCN 440125
• Roane Medical Center Hospital, Harriman, TN, CCN 440031

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/d924d991-43c4-4c48-b322-4525ba4c2001/

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.

• Intensive Care Consortium Inc

  • Specialist
  • Aventura, FL
  • NPI 1629019062

  Critical Care Medicine, DC

  Medicare reassignment Care Compare group NPD
• Methodist Medical Center

  • General Acute Care Hospital
  • Oak Ridge, TN
  • NPI 1700870672
  NPD
• Parkwest Medical Center

  • General Acute Care Hospital
  • Knoxville, TN
  • NPI 1396739165
  NPD
• Statcare Inpatient LLC

  • Internal Medicine Physician
  • Knoxville, TN
  • NPI 1477086981

  Internal Medicine

  NPD
• Statcare Outpatient, LLC

  • Pulmonary Disease Physician
  • Knoxville, TN
  • NPI 1134653892

  Internal Medicine

  NPD

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

• Reston Hospital Center LLC

  • General Acute Care Hospital
  • Reston, VA
  • NPI 1053363853

  Hospital

  Care Compare affiliation
• Fort Sanders Regional Medical Center

  • General Acute Care Hospital
  • Knoxville, TN
  • NPI 1942294814

  Hospital

  Care Compare affiliation
• Methodist Medical Center

  • General Acute Care Hospital
  • Oak Ridge, TN
  • NPI 1700870672

  Hospital

  Care Compare affiliation
• Parkwest Medical Center

  • General Acute Care Hospital
  • Knoxville, TN
  • NPI 1396739165

  Hospital

  Care Compare affiliation
• Roane County Medical Center

  • General Acute Care Hospital
  • Harriman, TN
  • NPI 1700036696

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1469750400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1982157608",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 207830",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "753207830",
            "telephone_number": "888-412-2649"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1850 TOWN CENTER PKWY",
            "city": "RESTON",
            "state": "VA",
            "postal_code": "201903204",
            "telephone_number": "703-689-9000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6473 Kingston Pike Ste 6473",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379194832",
            "country_code": "US",
            "telephone_number": "888-412-2649",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAROUN",
        "first_name": "RALPH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-07-29",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "TN",
            "license": "64455",
            "primary": true
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "VA",
            "license": "0101287781",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mark L. Bilowus, M.D. PC
• Sara Catherine Markese, PH.D.
• Deanna Lynn Markley, PA
• Inga Marler, FNP
• Jessica Marmo, RDN
• Eveline B Marquardt, M.D.
• Gabriela Marquez Canale, LCSW
• Maritza Marrero Gonzalez
• Jeffrey Martens, PH.D.
• Kathleen Reindl Martens, PSYD

• All providers in Reston, VA
• Pulmonary Disease Physician in Virginia

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