Thai Nguyen, MD
Thai Nguyen, MD is an Internal Medicine Physician in Orlando, FL, registered under NPI 1003337304. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Orlando, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 858 ft away. The nearest transit stop is 726 ft away, served by South Orange Avenue and Fernwood Street. A pharmacy sits 372 ft from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 931 ft away.
Getting here and what is nearby
Parking 249 ft ~1 min
Pharmacy Walgreens 372 ft ~2 min
1200 Kuhl Avenue, Orlando 32806
Mo-Fr 08:00-13:30,14:00-18:00
Transit 431 ft ~2 min
Parking 527 ft ~2 min
Hotel Hampton Inn & Suites Orlando / Downtown South - Medical Center 589 ft ~3 min
Transit 617 ft ~3 min
Hotel TownePlace Suites Orlando Downtown 617 ft ~3 min
Hotel The Delaney Hotel 639 ft ~3 min
Restaurant Delaney's Tavern 629 ft ~3 min
1315 South Orange Avenue, Orlando 32806
Su-Th 07:30-21:30; Fr-Sa 07:30-22:30
Transit South Orange Avenue and Fernwood Street 726 ft ~3 min
Parking 858 ft ~4 min
Coffee Foxtail Coffee - SoDo North 931 ft ~4 min
1101 South Orange Avenue, Orlando 32806
Mo-Su 06:00-18:00
Gas station Chevron 0.30 mi ~7 min
Restaurant Subway 0.38 mi ~8 min
Convenience 7-Eleven 0.45 mi ~10 min
Restaurant Einstein Bros. Bagels 0.48 mi ~10 min
1901 South Orange Avenue, Orlando 32806
Mo-Fr 05:30-14:00; Sa-Su 06:00-14:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| ME157916 | FL | Internal Medicine Physician primary |
| ME157916 | FL | Infectious Disease Physician |
This provider holds licence ME157916 issued in FL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 5092071266
- Enrollment ID
- I20220812000864
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | ME157916 | FL | primary |
| 207RI0200X | Infectious Disease Physician Infectious Disease | ME157916 | FL |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003337304 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 28, 2017 |
| Last updated | Dec 29, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
52 UNDERWOOD ST Orlando, FL 32806 (321) 841-3581 Fax (321) 841-4085 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 3 | 3 | 7 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 3 | 5 | 3 | 0 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.