Timothy Nieh, DO
Timothy Nieh, DO is a Family Medicine Physician in Mountain View, CA, registered under NPI 1003375866.
Getting there
Here is what surrounds this office in Mountain View, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 382 ft away. There is EV charging 0.46 mi from the office (Sunnyvale Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 545 ft away, served by El Camino Real & Sylvan Avenue. If you arrive early, there is a coffee shop 0.40 mi away.
Getting here and what is nearby
EV charging Loop Neighborhood Market 263 ft ~1 min
Convenience Loop 249 ft ~1 min
Gas station Shell 245 ft ~1 min
Parking 272 ft ~2 min
Transit El Camino Real & The Americana 309 ft ~2 min
Restaurant Satsuma 325 ft ~2 min
705 East El Camino Real, Mountain View 94086
Mo-Fr 11:00-14:00, Mo-We 17:00-20:30, Th 17:00-21:00
Transit Sylvan Avenue & El Camino Real 353 ft ~2 min
Parking 374 ft ~2 min
Parking 382 ft ~2 min
Convenience 7-Eleven 479 ft ~2 min
Transit El Camino Real & Sylvan Avenue 545 ft ~3 min
Coffee Mochi Waffle Corner 640 ft ~3 min
Hotel Aloft Mountain View 735 ft ~3 min
Restaurant Chalateco 819 ft ~4 min
823 East El Camino Real, Mountain View 94040
10:00-23:00
Hotel Hotel Avante 922 ft ~4 min
Hotel Hotel Zico 0.33 mi ~7 min
Restaurant Ike's Love and Sandwiches 0.35 mi ~7 min
1253 West El Camino Real, Sunnyvale 94087
Mo-Su 10:00-21:00
Coffee Tea Cub Boba & Snack 0.40 mi ~9 min
175 East El Camino Real, Mountain View 94040
Mo-Tu 10:00-19:00; We-Su 10:00-20:00
Coffee Starbucks 0.40 mi ~9 min
Grocery Safeway 0.42 mi ~9 min
Grocery Nijiya Market 0.43 mi ~9 min
143 East El Camino Real, Mountain View 94040
09:00-20:30
Grocery Smart & Final extra! 0.44 mi ~9 min
EV charging Sunnyvale Supercharger 0.46 mi ~10 min
Gas station Valley Oil 0.46 mi ~10 min
Convenience Galamart 0.48 mi ~10 min
Gas station Alliance 0.49 mi ~10 min
1198 West El Camino Real, Sunnyvale 94087
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 |
|---|---|---|
| 20A19968 | CA | Family Medicine Physician primary |
This provider holds licence 20A19968 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 - Family Practice
- PAC ID
- 4789068347
- Enrollment ID
- I20220830004621
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003375866 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 19, 2019 |
| Last updated | Aug 29, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DO |
| Practice address |
701 E EL CAMINO REAL Mountain View, CA 94040 (650) 404-8370 |
| Mailing address |
325 DISTEL CIR Los Altos, CA 94022 |
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 | 7 | 5 | 8 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 1 | 8 | 3 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.