Thao Tran, D.O
Thao Tran, D.O is an Internal Medicine Physician in Tulsa, OK, registered under NPI 1003203662.
Getting there
Here is what surrounds this office in Tulsa, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 300 ft away. The nearest transit stop is 722 ft away, served by 41st Street & Urbana Avenue.
Getting here and what is nearby
Parking 178 ft ~1 min
Parking 183 ft ~1 min
Parking 300 ft ~2 min
Restaurant Bill & Ruth's 356 ft ~2 min
4502 East 41st Street South
Mo-Fr 07:30-17:30; Sa-Su,PH off
Transit OU Clinic 441 ft ~2 min
Transit David L Boren Boulevard & Yale Avenue 562 ft ~3 min
Transit 41st Street & Urbana Avenue 722 ft ~3 min
Restaurant McDonald's 756 ft ~3 min
4249 South Yale Avenue East, Tulsa 74135-6004
Mo-Th,Su 04:00-23:00 "Drive through"; Fr-Sa 00:00-24:00 "Drive through"; 05:00-23:00 "Dining room"
Restaurant Schlotzsky's 0.22 mi ~5 min
4905 East 41st Street South, Tulsa 74135
Mo-Su 10:00-22:00
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 |
|---|---|---|
| 6303 | TX | Internal Medicine Physician primary |
This provider holds licence 6303 issued in TX. 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
- 8921310913
- Enrollment ID
- I20180829001141
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
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 | 1003203662 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 22, 2015 |
| Last updated | Jan 7, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | D.O |
| Practice address |
4502 E. 41ST STREET Tulsa, OK 74135 (918) 619-4400 |
| Mailing address |
919 E 32ND ST Austin, TX 78705 |
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 | 2 | 0 | 3 | 6 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 6 | 6 | 3 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.