Timothy Tudor, SUDRC
Timothy Tudor, SUDRC is an Addiction (Substance Use Disorder) Counselor in Marysville, CA, registered under NPI 1003598871.
Getting there
Here is what surrounds this office in Marysville, based on OpenStreetMap data collected Oct 9, 2026. Parking is available about 838 ft away. There is EV charging 0.39 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 0.20 mi away, served by Yuba Street and 12th Street (One-Stop). If you arrive early, there is a coffee shop 0.42 mi away.
Getting here and what is nearby
EV charging ChargePoint 245 ft ~1 min
Parking 612 ft ~3 min
EV charging ChargePoint 703 ft ~3 min
Parking 704 ft ~3 min
Transit B Street and 8th Street (Caltrans) 845 ft ~4 min
Transit B Street and 9th Street 850 ft ~4 min
Parking 838 ft ~4 min
Transit Yuba Street and 12th Street (One-Stop) 0.20 mi ~4 min
Coffee Dutch Bros. Coffee 0.20 mi ~5 min
Gas station 76 0.23 mi ~5 min
Convenience Circle K 0.24 mi ~5 min
Convenience Quik Stop 0.29 mi ~6 min
Gas station QuikStop 0.29 mi ~6 min
Restaurant Carl's Jr. 0.37 mi ~8 min
Hotel Motel 6 Marysville, CA 0.38 mi ~8 min
EV charging 0.39 mi ~8 min
Convenience ampm 0.39 mi ~8 min
Restaurant The Habit Burger Grill 0.39 mi ~8 min
723 E Street, Marysville 95901
Gas station Arco 0.40 mi ~9 min
707 E Street, Marysville
Restaurant Casa Carlos Restaurant & Cantina 0.41 mi ~9 min
413 6th Street, Marysville 95901
Coffee Starbucks 0.42 mi ~9 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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
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 | 1003598871 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 2, 2023 |
| Last updated | Aug 2, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | SUDRC |
| Practice address |
2 9TH ST Marysville, CA 95901 (530) 742-6670 |
| Mailing address |
430 TEEGARDEN AVE Yuba City, CA 95991 |
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 | 5 | 9 | 8 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 9 | 7 | 8 | 5 |
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.