Thiendang Nguyen, M.D.
Thiendang Nguyen, M.D. is an Anesthesiology Physician in Los Angeles, CA, registered under NPI 1003056995. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Los Angeles, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 635 ft away at P9 LA General MC Parking Structure. There is EV charging 0.48 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 222 ft away, served by Marengo & State. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Transit Marengo & State 134 ft ~1 min
Transit Marengo & State 218 ft ~1 min
Transit Marengo & State 222 ft ~1 min
Convenience 7-Eleven 235 ft ~1 min
Gas station 76 283 ft ~2 min
Parking P5 LA General MC Visitor Parking 331 ft ~2 min
Restaurant Rollup Teriyaki 367 ft ~2 min
1983 Marengo Street, Los Angeles 90033
Mo-Fr 13:00-20:00
Parking 620 ft ~3 min
Parking P9 LA General MC Parking Structure 635 ft ~3 min
Restaurant Popeyes 720 ft ~3 min
2000 Marengo Street, Los Angeles 90033
08:00-24:00
Restaurant Subway 733 ft ~3 min
2000 Marengo Street, Los Angeles 90033
Mo-Fr 07:00-01:00; Sa-Su 09:00-01:00
Gas station Chevron 0.33 mi ~7 min
Coffee Starbucks 0.35 mi ~7 min
Gas station Chevron 0.46 mi ~10 min
EV charging 0.48 mi ~10 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 |
|---|---|---|
| A99080 | CA | Anesthesiology Physician primary |
This provider holds licence A99080 issued in CA. 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 - Anesthesiology
- PAC ID
- 6901951219
- Enrollment ID
- I20090909000545
Medicare enrolment is recorded as approved under the provider type Practitioner - Anesthesiology. 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 Anesthesiology covers
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery. NUCC Health Care Provider Taxonomy, code 207L00000X
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 | 1003056995 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 4, 2009 |
| Last updated | Sep 11, 2009 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | M.D. |
| Practice address |
1200 N STATE ST #14-901 Los Angeles, CA 90033 (323) 409-7748 |
| Other names |
Thien-dang Nguyen Doing Business As |
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 | 0 | 5 | 6 | 9 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 5 | 3 | 9 | 9 |
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.