Alexandra Union, PHD
Alexandra Union, PHD is a Clinical Psychologist in Sonora, CA, registered under NPI 1003245895.
Getting there
Here is what surrounds this office in Sonora, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 479 ft away. There is EV charging 0.31 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.27 mi away, served by Community Pharmacy Stockton Street. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Parking 333 ft ~2 min
Hotel Sonora Gold Lodge 350 ft ~2 min
480 W Stockton Street, Sonora 95370
Transit Sonora Fairgrounds 412 ft ~2 min
Parking 418 ft ~2 min
Parking 479 ft ~2 min
Transit Sonora Community Estates (Dragoon Gluch Trail) 0.20 mi ~5 min
Transit Community Pharmacy Stockton Street 0.27 mi ~6 min
EV charging Tesla Supercharger 0.31 mi ~7 min
Restaurant Round Table Pizza 0.35 mi ~7 min
Grocery Save Mart 0.40 mi ~8 min
Restaurant Yoshoku 0.42 mi ~9 min
70 West Stockton Street, Sonora 95370
Mo-Sa 11:00-20:00
Hotel Gunn House Hotel 0.43 mi ~9 min
286 South Washington Street, Sonora 95370
Hotel Inns of California 0.44 mi ~9 min
350 South Washington Street, Sonora 95370
Restaurant The Armory 0.44 mi ~9 min
Gas station 76 0.46 mi ~10 min
Gas station Gold Country Gaz 0.46 mi ~10 min
Coffee Day-O 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 |
|---|---|---|
| 13349 | CA | Clinical Psychologist primary |
This provider holds licence 13349 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 Clinical covers
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems. NUCC Health Care Provider Taxonomy, code 103TC0700X
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 | 1003245895 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 2, 2013 |
| Last updated | Jul 21, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PHD |
| Practice address |
193 FAIRVIEW LN STE F Sonora, CA 95370 (209) 536-5110 Fax (209) 588-8685 |
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 | 2 | 4 | 5 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 4 | 1 | 8 | 9 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.