John Keyloun, M.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

MD500003242 Issued in DC

Practice address

3800 Reservoir Rd NW
Washington, DC 20007-2113

Phone

(202) 444-1233

Fax

(202) 444-7422

NPI assigned

Apr 3, 2017

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 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

General Surgery

Education

Georgetown University School of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Johns Hopkins Community Physicians, IncGroup PAC ID 8325943707, 764 clinicians

Johns Hopkins UniversityGroup PAC ID 4981745098, 711 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sibley Memorial Hospital Hospital, Washington, DC, CCN 090005

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jkeyloun1136441@direct.hopkinsmedicine.org

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.

• Johns Hopkins University

  • Transplant Surgery Physician
  • Baltimore, MD
  • NPI 1124009758

  DC

  Medicare reassignment Care Compare group NPD
• Johns Hopkins Community Physicians, Inc

  • Internal Medicine Physician
  • Baltimore, MD
  • NPI 1578598868

  DC

  Medicare reassignment Care Compare group
• Johns Hopkins Community Physicians

  • Clinical Social Worker
  • Baltimore, MD
  • NPI 1356161806
  NPD
• Johns Hopkins Community Physicians, Inc

  • Internal Medicine Physician
  • Baltimore, MD
  • NPI 1255359972
  NPD
• Johns Hopkins University

  • Neurology Physician
  • MC Lean, VA
  • NPI 1598552226
  NPD
• Johns Hopkins University

  • Surgery Physician
  • Baltimore, MD
  • NPI 1780665315
  NPD

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

• Lucy Webb Hayes National Training School for Deaconesses & Missionarie

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1366492977
  Care Compare affiliation

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

{
    "created_epoch": "1491177600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766361600000",
    "number": "1760914121",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE FL 2",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-933-0000",
            "fax_number": "410-500-4266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3800 RESERVOIR RD NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200072113",
            "telephone_number": "202-444-1233",
            "fax_number": "202-444-7422"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5215 Loughboro Rd NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200162618",
            "country_code": "US",
            "telephone_number": "202-895-1440",
            "fax_number": "202-895-1448",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KEYLOUN",
        "first_name": "JOHN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-04-03",
        "last_updated": "2025-12-22",
        "certification_date": "2025-12-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "DC",
            "license": "MD500003242",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anne Keya
• Florence Keyaka
• Kenneth L Keyes
• Takema Keyes, LGSW
• Brienne Rae Keyloun, M.D.
• Ali Keys
• Ereeka Latisha Keys
• Francesca Racqueal Keys
• Margie Keys
• Natasha L Keys

• Surgery Physician in Washington, DC
• Providers in Washington, DC by specialty
• Surgery Physician in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 22, 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.