CASTRO VALLEY DENTISTRY, INC.
CASTRO VALLEY DENTISTRY, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003281437, based in Castro Valley, CA. It is classified under Dentist.
Getting there
Here is what surrounds this office in Castro Valley, based on OpenStreetMap data collected Sep 16, 2026. Parking is available about 78 ft away. The nearest transit stop is 668 ft away, served by Redwood Road & Lessley Avenue. If you arrive early, there is a coffee shop 237 ft away.
Getting here and what is nearby
Parking 45 ft ~1 min
Parking 55 ft ~1 min
Parking 78 ft ~1 min
Restaurant China Garden 73 ft ~1 min
22253 Redwood Road
Transit Redwood Road & Grove Way 162 ft ~1 min
Coffee Pampas Cafe 237 ft ~1 min
22222 Redwood Road
Transit Redwood Road & Grove Way 240 ft ~1 min
Grocery El Rancho Mercado & Taqueria 268 ft ~2 min
22291 Redwood Road
Grocery Trader Joe's 280 ft ~2 min
22224 Redwood Road, Castro Valley 94546
Mo-Su 08:00-21:00
Restaurant Los Molcajetes 394 ft ~2 min
22154 Redwood Road
Restaurant Castro Valley Donut 415 ft ~2 min
22150 Redwood Road
Transit Redwood Road & Lessley Avenue 668 ft ~3 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003281437 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 10, 2015 |
| Last updated | Dec 10, 2015 |
| Status | Active |
| Practice address |
22233 REDWOOD RD Castro Valley, CA 94546 (510) 582-7122 |
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 | 2 | 8 | 1 | 4 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 8 | 2 | 4 | 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.