Thomas Davidson, CDP
Thomas Davidson, CDP is an Addiction (Substance Use Disorder) Counselor in Yakima, WA, registered under NPI 1003382409. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Yakima, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 144 ft away. There is EV charging 0.36 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.28 mi away, served by North 6th Street & Martin Luther King Jr. Boulevard. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Parking 104 ft ~1 min
Restaurant Taco Bell 96 ft ~1 min
Parking 138 ft ~1 min
Parking 144 ft ~1 min
Hotel Holiday Inn 200 ft ~1 min
802 East Yakima Avenue, Yakima 98902
Restaurant DQ Grill & Chill 237 ft ~1 min
Convenience 7-Eleven 264 ft ~2 min
Gas station 7-Eleven 338 ft ~2 min
Union Street
Restaurant Domino's 305 ft ~2 min
6 Union Street, Yakima 98901
Mo-Th 10:30-24:00; Fr-Sa 10:30-01:00; Su 10:30-24:00
Convenience ampm 649 ft ~3 min
Gas station Arco 644 ft ~3 min
Transit South 6th Street 742 ft ~3 min
Transit North 6th Street & East Yakima Avenue 772 ft ~3 min
Hotel Hilton Garden Inn Yakima 0.27 mi ~6 min
Transit North 6th Street & Martin Luther King Jr. Boulevard 0.28 mi ~6 min
EV charging Tesla Supercharger 0.36 mi ~8 min
Hotel Fairfield Inn & Suites Yakima 0.37 mi ~8 min
Grocery Downtown Market 0.45 mi ~9 min
Coffee & Tea 0.46 mi ~10 min
Coffee Mak Daddy 0.47 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 |
|---|---|---|
| CP00000646 | WA | Addiction (Substance Use Disorder)… primary |
| CP00000646 | WA | Case Manager/Care Coordinator |
This provider holds licence CP00000646 issued in WA. 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) | CP00000646 | WA | primary |
| 171M00000X | Case Manager/Care Coordinator | CP00000646 | WA |
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 | 1003382409 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 23, 2018 |
| Last updated | Oct 16, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | CDP |
| Practice address |
12 S 8TH ST Yakima, WA 98901 (509) 454-4143 |
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 | 3 | 8 | 2 | 4 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 8 | 4 | 4 | 0 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.