Sandra Zambrano
Sandra Zambrano is a provider specialising in Clinical Social Worker in Concord, CA, registered under NPI 1003745605.
Getting there
Here is what surrounds this office in Concord, based on OpenStreetMap data collected Oct 19, 2026. Parking is available about 988 ft away at Willow Pass Park And Ride. There is EV charging 0.49 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.21 mi away, served by Willow Pass Road & Diamond Boulevard. If you arrive early, there is a coffee shop 0.39 mi away.
Getting here and what is nearby
Parking 107 ft ~1 min
Parking 171 ft ~1 min
Transit Willow Pass Road & Franquette Avenue 718 ft ~3 min
Transit Willow Pass Road & Waterworld Parkway 987 ft ~4 min
Parking Willow Pass Park And Ride 988 ft ~4 min
E Of Sr 242/ S Of Willow Pass Rd/ W Of Market St, Concord 94520
Transit Willow Pass Road & Diamond Boulevard 0.21 mi ~5 min
Convenience Food Mart 0.23 mi ~5 min
Gas station All Star 0.23 mi ~5 min
Restaurant Denny's 0.24 mi ~5 min
Restaurant Brasas do Brazil 0.30 mi ~7 min
1631 Willow Pass Road, Concord 94520
We-Th 17:00-21:00; Fr 17:00-22:00; Sa 12:00-22:00; Su 12:00-21:00
Restaurant Fresh Box - Poke Bowl & Boba Bubble Tea 0.31 mi ~7 min
1645 Willow Pass Road, Concord 94520
Mo-Su 11:00-19:00
Coffee Qamaria Yemeni Coffee 0.33 mi ~7 min
Grocery Seafood City 0.33 mi ~7 min
Coffee Gratitude Coffee Bar 0.34 mi ~7 min
1655 Willow Pass Road, Concord 94520
Tu-Sa 07:00-22:00, Su-Mo 07:00-17:00
Grocery Foodnet Market 0.35 mi ~8 min
Coffee Philz Coffee 0.39 mi ~8 min
1975 Diamond Boulevard, Concord 94520
EV charging 0.44 mi ~9 min
EV charging Tesla Supercharger 0.49 mi ~10 min
EV charging Tesla Supercharger 0.49 mi ~10 min
Grocery INDIROOT - The Indian Pantry 0.49 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 Clinical covers
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
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 | 1003745605 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 18, 2026 |
| Last updated | May 18, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
1465 CIVIC CT Concord, CA 94520 (510) 631-9750 |
| Mailing address |
4301 ARLEDA LN Concord, CA 94521 |
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 | 7 | 4 | 5 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 4 | 1 | 6 | 0 |
Sum = 45 · next multiple of 10 = 50 · 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.