Xuyu Zhang
Xuyu Zhang is a provider specialising in Dentist in San Francisco, CA, registered under NPI 1003466137. 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 San Francisco, based on OpenStreetMap data collected Sep 28, 2026. Parking is available about 0.25 mi away at Chinese Hospital Parking Garage. There is EV charging 0.37 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 347 ft away, served by Clay Street & Grant Avenue. A pharmacy sits 0.22 mi from the entrance (Wellman's HealthMart), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 286 ft away.
Getting here and what is nearby
Coffee Jinshan Cafe 90 ft ~1 min
Convenience Wok Shop 181 ft ~1 min
Restaurant Sushi Boat Restaurant 133 ft ~1 min
Restaurant Snow Garden Restaurant 164 ft ~1 min
712 Grant Avenue
Transit Sacramento Street & Grant Avenue 229 ft ~1 min
Restaurant Far East Cafe 215 ft ~1 min
631 Grant Avenue, San Francisco
Transit Sacramento Street & Kearny Street 245 ft ~1 min
Coffee Paper Son at Soon and Soon 260 ft ~1 min
731 Grant Avenue, San Francisco 94108-2113
Fr-Su 09:00-15:00
Coffee Good Luck 286 ft ~2 min
Mo-Sa 07:00-19:00; Su 08:00-15:00
Transit Clay Street & Grant Avenue 347 ft ~2 min
Convenience Charming Sun Market Inc 593 ft ~3 min
49 Walter U. Lum Place
Hotel Omni San Francisco Hotel 702 ft ~3 min
Hotel Balmoral Hotel North # 3 715 ft ~3 min
640 Clay Street, San Francisco 94111
Hotel Hilton San Francisco Financial District 758 ft ~3 min
Pharmacy Clay Medical Pharmacy 792 ft ~3 min
929 Clay Street, San Francisco
Convenience Dai Lee Food Inc. 875 ft ~4 min
878 Washington Street
Pharmacy Walgreens 1,027 ft ~4 min
300 Montgomery Street, San Francisco 94104
Mo-Fr 09:00-13:30,14:00-19:00
Parking Annex Garage 0.22 mi ~5 min
925 Powell Street
Pharmacy Wellman's HealthMart 0.22 mi ~5 min
1053 Stockton Street
Parking Sutter Stockton Garage 0.24 mi ~5 min
444 Stockton Street, San Francisco 94108
Parking Chinese Hospital Parking Garage 0.25 mi ~5 min
1140 Powell Street
Grocery New Asia Market 0.27 mi ~6 min
772 Pacific Avenue, 94133
Grocery J & L Vegi Supermarket 0.31 mi ~7 min
1215 Stockton Street
EV charging 0.37 mi ~8 min
Grocery JW & L Market 0.41 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 |
|---|---|---|
| DDS104001 | CA | Dentist primary |
This provider holds licence DDS104001 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
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 | 1003466137 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 20, 2019 |
| Last updated | Sep 20, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
771 SACRAMENTO ST San Francisco, CA 94108 (415) 362-3388 |
| Mailing address |
3000 JUDAH ST San Francisco, CA 94122 |
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 | 4 | 6 | 6 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 6 | 3 | 1 | 6 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.