Ashley Guzman
Ashley Guzman is an Addiction (Substance Use Disorder) Counselor in San Bernardino, CA, registered under NPI 1003319716.
Getting there
Here is what surrounds this office in San Bernardino, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 0.24 mi away. The nearest transit stop is 0.20 mi away.
Getting here and what is nearby
Transit 983 ft ~4 min
Transit 0.20 mi ~4 min
Parking 0.22 mi ~5 min
Restaurant Baker's Drive-Thru 0.22 mi ~5 min
Parking 0.24 mi ~5 min
Restaurant McDonald's 0.35 mi ~8 min
718 West Highland Avenue, San Bernardino 92405-3839
07:00-21:00
Restaurant El Pollo Loco 0.40 mi ~8 min
758 West Highland Avenue, San Bernardino 92405
Mo-Su 10:00-22:00
Gas station Chevron 0.48 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
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 | 1003319716 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 9, 2018 |
| Last updated | Mar 9, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
1963 N E ST San Bernardino, CA 92405 (909) 881-6146 Fax (909) 881-3479 |
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 | 1 | 9 | 7 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 1 | 9 | 7 | 2 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.