Yvonne Thomas, MS, CADC-III
Yvonne Thomas, MS, CADC-III is an Addiction (Substance Use Disorder) Counselor in Folsom, CA, registered under NPI 1003475062.
Getting there
Here is what surrounds this office in Folsom, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 0.48 mi away at Parking P5. If you arrive early, there is a coffee shop 0.49 mi away.
Getting here and what is nearby
Restaurant Dunkin' 0.38 mi ~8 min
9601 Greenback Lane, Folsom 95630
Mo-Su 06:00-18:00
Restaurant Jack in the Box 0.41 mi ~9 min
9550 Greenback Lane, Folsom 95630
Su-Th 07:00-24:00; Fr, Sa 07:00-02:00
Restaurant Carl's Jr. 0.44 mi ~9 min
Parking 0.47 mi ~10 min
Parking 0.47 mi ~10 min
Parking Parking P5 0.48 mi ~10 min
Coffee Starbucks 0.49 mi ~10 min
9475 Madison Avenue, Folsom 95630
Mo-Fr 05:00-19:00; Sa 05:30-19:00; Su 05:30-18:30
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 |
|---|---|---|
| B00002920423 | CA | Addiction (Substance Use Disorder)… primary |
| R1352340619 | CA | Addiction (Substance Use Disorder)… |
This provider holds licence B00002920423 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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
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 | |
|---|---|---|---|---|
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | B00002920423 | CA | primary |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | R1352340619 | 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 | 1003475062 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 12, 2019 |
| Last updated | Jan 15, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MS, CADC-III |
| Practice address |
130 PROSPECTOR CT Folsom, CA 95630 (916) 905-1099 |
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 | 7 | 5 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 1 | 0 | 3 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.