Individual provider Active NPI

Nak Hyun Choi, M.D.

  • Clinical Cardiac Electrophysiology Physician
  • Washington, DC
National Provider Identifier
1780099168
Registry record updated Jun 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Cardiac Electrophysiology PhysicianTaxonomy code 207RC0001X
License
MD2000036 Issued in DC
Practice address
111 Michigan Ave NW
Washington, DC 20010-2916
Phone
(888) 884-2327
Fax
(202) 476-3900
NPI assigned
Jun 24, 2014
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 2, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Cardiac Electrophysiology Physician 207RC0001X MD2000036 DC Primary
Pediatric Cardiology Physician 2080P0202X C1-0025287 DE
Pediatric Cardiology Physician 2080P0202X MD2000036 DC
Pediatrics Physician 208000000X 56430 CT

Addresses

Primary practice location

111 Michigan Ave NW
Washington, DC 20010-2916

Mailing address

111 Michigan Ave NW
Washington, DC 20010-2916
Phone (888) 884-2327

Other names 1

  • Tom Choi Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ, DC2 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

Enrollment IDStateProvider typePAC IDDetails
I20230418000531 NJ Practitioner - Cardiovascular Disease (Cardiology) 3274804893 Reassigns benefits to 1 organization
I20241112000408 DC Practitioner - Pediatric Medicine 3274804893 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
George Washington University School of Medicine, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Children's HospitalGroup PAC ID 0244143170, 212 clinicians

Practice addresses (Care Compare)

111 Michigan Ave NW
Washington, DC 20010-2916
Phone (301) 572-3514

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD2000036DCMDClinical Cardiac Electrophysiology Physician
C1-0025287DEMDPediatric Cardiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Nemours New Jersey Physician Practice, P.C. Pediatrics CurrentSince Apr 3, 2023 Accepting new patients
Children's Hospital Current Accepting new patients
Children's Hospital CurrentSince Sep 1, 2024 Accepting new patients
Children's Hospital Pediatrics CurrentSince Sep 1, 2024 Accepting new patients

Locations

111 Michigan Ave NW
Washington, DC 20010
Phone (202) 476-3670

1600 Rockland Rd
Wilmington, DE 19803

1280 Almonesson Rd
Woodbury, NJ 08096
Phone (856) 345-1401

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1403568000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780358400000",
    "number": "1780099168",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "111 MICHIGAN AVE NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200102916",
            "telephone_number": "888-884-2327",
            "fax_number": "202-476-3900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "111 MICHIGAN AVE NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200102916",
            "telephone_number": "888-884-2327",
            "fax_number": "202-476-3900"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHOI",
        "first_name": "NAK HYUN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-06-24",
        "last_updated": "2026-06-02",
        "certification_date": "2026-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "DC",
            "license": "MD2000036",
            "primary": true
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "DE",
            "license": "C1-0025287",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "DC",
            "license": "MD2000036",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CT",
            "license": "56430",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "TOM",
            "last_name": "CHOI",
            "credential": "M.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Washington, DC

Sources for this page

Verify at the official NPI Registry.