Thaibinh Lai-nguyen, PA-C
Thaibinh Lai-nguyen, PA-C is a Physician Assistant in Palo Alto, CA, registered under NPI 1003686155.
Getting there
Here is what surrounds this office in Palo Alto, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 0.27 mi away at Roth Way Garage. There is EV charging 0.47 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 579 ft away, served by 780 Welch Road. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Transit 801 Welch Road 551 ft ~3 min
Transit 700 Welch Road 571 ft ~3 min
Transit 780 Welch Road 579 ft ~3 min
Coffee Tootsie's at the Stanford Barn 689 ft ~3 min
700 Welch Road, Palo Alto 94304-1519
Mo-Fr 06:30-15:00; Sa 10:00-15:00
Restaurant Vina Enoteca 724 ft ~3 min
Restaurant Market Square Cafeteria 776 ft ~3 min
Mo-Su 06:00-20:00
Parking Pasteur Staff Garage 1,025 ft ~4 min
1189 Welch Road, Stanford
Parking Pasteur Visitor Garage A 0.23 mi ~5 min
200 Palo Alto, Palo Alto 94304
Convenience Corner Store 0.27 mi ~6 min
Parking Roth Way Garage 0.27 mi ~6 min
345 Campus Drive, Stanford
Restaurant Lutticken's Deli 0.30 mi ~6 min
Mo-Fr 07:30-16:00
Coffee NM Cafe 0.38 mi ~8 min
Coffee Voyager Craft Coffee 0.47 mi ~10 min
389 Jane Stanford Way, Stanford 94305
Mo-Fr 07:00-17:00
EV charging Tesla Supercharger 0.47 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 |
|---|---|---|
| 64185 | CA | Physician Assistant primary |
This provider holds licence 64185 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 - Physician Assistant
- PAC ID
- 0143660746
- Enrollment ID
- I20240430002151
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. 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 Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
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 | |
|---|---|---|---|---|
| 363A00000X | Physician Assistant | 64185 | CA | primary |
| 363A00000X | Physician Assistant | — | — |
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 | 1003686155 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 8, 2024 |
| Last updated | Feb 28, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | PA-C |
| Practice address |
725 WELCH RD Palo Alto, CA 94304 (650) 497-8000 |
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 | 6 | 8 | 6 | 1 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 8 | 3 | 1 | 1 |
Sum = 45 · next multiple of 10 = 50 · 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.