Active NPI
Alexander Hwang, MD
- Urology Physician
- Johnson City, TN
National Provider Identifier
1205413903
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Urology Physician
- License
- 76925
- Practice address
- 2340 Knob Creek Rd Ste 720
Johnson City, TN 37604-2977 - Phone
- (423) 926-6112
- Fax
- (423) 434-0278
- NPI assigned
- Mar 27, 2021
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Urology Physician | 208800000X | 76925 | TN | Primary |
| Student in an Organized Health Care Education/Training Program | 390200000X |
Addresses
Primary practice location
2340 Knob Creek Rd Ste 720
Johnson City, TN 37604-2977
Mailing address
PO Box 9
Kingsport, TN 37662-0009
Phone (423) 857-2066
Other practice location 1
979 E 3rd St Ste C-535
Chattanooga, TN 37403-2136
Phone (423) 778-4691
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1616803200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785283200000",
"number": "1205413903",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 9",
"city": "KINGSPORT",
"state": "TN",
"postal_code": "376620009",
"telephone_number": "423-857-2066"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2340 KNOB CREEK RD STE 720",
"city": "JOHNSON CITY",
"state": "TN",
"postal_code": "376042977",
"telephone_number": "423-926-6112",
"fax_number": "423-434-0278"
}
],
"practiceLocations": [
{
"address_1": "979 E 3rd St Ste C-535",
"address_purpose": "LOCATION",
"city": "Chattanooga",
"state": "TN",
"postal_code": "374032136",
"country_code": "US",
"telephone_number": "423-778-4691",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "HWANG",
"first_name": "ALEXANDER",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-03-27",
"last_updated": "2026-07-29",
"certification_date": "2026-07-29",
"status": "A"
},
"taxonomies": [
{
"code": "208800000X",
"taxonomy_group": "",
"desc": "Urology",
"state": "TN",
"license": "76925",
"primary": true
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Johnson City, TN
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.