Richard Grunert, CACT 2215167-2
Richard Grunert, CACT 2215167-2 is a Day Training/Habilitation Specialist in San Mateo, CA, registered under NPI 1023646981. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 2000 ALAMEDA DE LAS PULGAS, San Mateo, CA 94403. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 2215767-2 | CA | Day Training/Habilitation Specialist primary |
| 2215767-1 | CA | Addiction (Substance Use Disorder)… |
This provider holds licence 2215767-2 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 Day Training/Habilitation Specialist covers
Individuals experienced or trained in working with developmentally disabled individuals who need assistance in acquiring and maintaining life skills that enable them to cope more effectively with the demands of independent living. NUCC Health Care Provider Taxonomy, code 373H00000X
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 | |
|---|---|---|---|---|
| 373H00000X | Day Training/Habilitation Specialist | 2215767-2 | CA | primary |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | 2215767-1 | CA |
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 | 1023646981 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 27, 2020 |
| Last updated | Mar 25, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | CACT 2215167-2 |
| Practice address |
2000 ALAMEDA DE LAS PULGAS San Mateo, CA 94403 (650) 670-7714 |
| Mailing address |
668 CHEVY CHASE WAY Hayward, CA 94544 |
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 | 2 | 3 | 6 | 4 | 6 | 9 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 4 | 3 | 3 | 4 | 3 | 9 | 7 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.