Active NPI
Nak Hyun Choi, M.D.
- Clinical Cardiac Electrophysiology Physician
- Washington, DC
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Cardiac Electrophysiology Physician
- License
- MD2000036
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NJ, DC
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
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
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
| License | State | Type | Specialty |
|---|---|---|---|
| MD2000036 | DC | MD | Clinical Cardiac Electrophysiology Physician |
| C1-0025287 | DE | MD | Pediatric Cardiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Nemours New Jersey Physician Practice, P.C. | Pediatrics | Current | Accepting new patients |
| Children's Hospital | Current | Accepting new patients | |
| Children's Hospital | Current | Accepting new patients | |
| Children's Hospital | Pediatrics | Current | 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.
-
- Children's Hospital
- Washington, DC
- NPI 1912939703
-
- Pediatrics Physician
- Deptford, NJ
- NPI 1265874713
-
dba Children's National Medical Associates
- Pediatrics Physician
- Washington, DC
- NPI 1780800128
-
dba Children's National Specialty Pharmacy
- Community/Retail Pharmacy
- Silver Spring, MD
- NPI 1326878349
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 2, 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.