Sein Tun, DO
Sein Tun, DO is a Nephrology Physician in Los Angeles, CA, registered under NPI 1003591835. 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 Los Angeles, based on OpenStreetMap data collected Oct 9, 2026. Parking is available about 661 ft away. There is EV charging 0.31 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 456 ft away, served by LA-USC T9. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Transit Zonal & State 163 ft ~1 min
Transit Zonal & Biggy 290 ft ~2 min
Transit LA-USC T9 456 ft ~2 min
Parking 464 ft ~2 min
Parking P10 Parking 624 ft ~3 min
Parking 661 ft ~3 min
Restaurant Panda Express 849 ft ~4 min
1969 Zonal Avenue, Los Angeles 90006
Mo-Fr 10:00-15:00
Convenience 7-Eleven 0.25 mi ~6 min
Gas station 76 0.25 mi ~6 min
Restaurant Rollup Teriyaki 0.25 mi ~5 min
1983 Marengo Street, Los Angeles 90033
Mo-Fr 13:00-20:00
Restaurant McDonald's 0.28 mi ~6 min
1716 Marengo Street, Los Angeles 90033-1315
05:00-22:00
EV charging 0.31 mi ~7 min
Gas station Chevron 0.33 mi ~7 min
Gas station C & J 0.42 mi ~9 min
Coffee Starbucks 0.43 mi ~9 min
Hotel Hyatt House LA - University Medical Center 0.43 mi ~9 min
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 |
|---|---|---|
| 20A24581 | CA | Nephrology Physician primary |
| SL2024 | NV | Internal Medicine Physician |
Licences are recorded in 2 states: CA, NV. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Order And Referring Only - Internal Medicine
- PAC ID
- 7911353503
- Enrollment ID
- I20231102003011
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - 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.
Licensed in 2 states
This provider holds licences in 2 states: California and Nevada. The practice address on file is in Los Angeles, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 20A24581
- Specialty
- Nephrology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Nephrology covers
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation. NUCC Health Care Provider Taxonomy, code 207RN0300X
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 | |
|---|---|---|---|---|
| 207RN0300X | Nephrology Physician Nephrology | 20A24581 | CA | primary |
| 207R00000X | Internal Medicine Physician | SL2024 | NV |
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 | 1003591835 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 20, 2023 |
| Last updated | Jun 18, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DO |
| Practice address |
1975 ZONAL AVE Los Angeles, CA 90089 (323) 442-1900 |
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 | 5 | 9 | 1 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 9 | 2 | 8 | 6 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.