Sandra Patron, D.M.D.
Sandra Patron, D.M.D. is a provider specialising in General Practice Dentistry in San Mateo, CA, registered under NPI 1003097577. 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 Mateo, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 839 ft away. There is EV charging 0.49 mi from the office (EVgo) — useful if you are driving in from out of town. The nearest transit stop is 0.27 mi away, served by El Camino Real & Tilton Avenue. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Parking 660 ft ~3 min
Parking 721 ft ~3 min
Parking 839 ft ~4 min
Transit El Camino Real & Poplar Avenue 0.22 mi ~5 min
Transit El Camino Real & Poplar Avenue 0.23 mi ~5 min
Transit El Camino Real & Tilton Avenue 0.27 mi ~6 min
Grocery Mi Rancho Supermarket 0.37 mi ~8 min
Coffee Bobabia 0.43 mi ~9 min
271 Baldwin Avenue, San Mateo
Restaurant La Cumbre 0.43 mi ~9 min
28 North B Street, San Mateo
Restaurant Ox 9 Lanzhou Hand Pulled Noodles 0.46 mi ~10 min
11 South B Street, San Mateo 94401
11:00-15:00, 17:00-21:00
Restaurant No. 5 House 0.46 mi ~10 min
5 South Ellsworth Avenue, San Mateo
EV charging ChargePoint 0.49 mi ~10 min
EV charging EVgo 0.49 mi ~10 min
EV charging EVgo 0.49 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 |
|---|---|---|
| 36596 | CA | General Practice Dentistry primary |
This provider holds licence 36596 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 General Practice covers
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs. NUCC Health Care Provider Taxonomy, code 1223G0001X
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 | 1003097577 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 26, 2007 |
| Last updated | Dec 19, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | D.M.D. |
| Practice address |
327 N SAN MATEO DR STE 1 San Mateo, CA 94401 (650) 520-7756 Fax (650) 627-9536 |
| Mailing address |
969G EDGEWATER BLVD # 782 Foster City, CA 94404 |
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 | 9 | 7 | 5 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 5 | 5 | 5 |
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.