Sydney Nishida, MS
Sydney Nishida, MS is a provider specialising in Behavior Analyst in Brentwood, CA, registered under NPI 1003323551.
Getting there
Here is what surrounds this office in Brentwood, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 486 ft away. The nearest transit stop is 0.32 mi away, served by Brentwood Boulevard & Village Drive. A pharmacy sits 564 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Mountain Mike's 167 ft ~1 min
Parking 243 ft ~1 min
Parking 263 ft ~1 min
Parking 486 ft ~2 min
Pharmacy CVS Pharmacy 564 ft ~3 min
Restaurant Dad's Cafe 577 ft ~3 min
Restaurant Burger King 784 ft ~3 min
Grocery Safeway 804 ft ~4 min
Transit 2nd Street & Brentwood Boulevard 0.21 mi ~5 min
Gas station Brentwood Petroleum 0.28 mi ~6 min
Transit Brentwood Park & Ride 0.31 mi ~7 min
Transit Brentwood Boulevard & Village Drive 0.32 mi ~7 min
Gas station Chevron 0.47 mi ~10 min
Convenience ExtraMile 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
| Licence | State | Specialty |
|---|---|---|
| 1-21-57220 | Behavior Analyst primary |
Licences are recorded in 0 states: . Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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 Behavior Analyst covers
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans. NUCC Health Care Provider Taxonomy, code 103K00000X
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 | 1003323551 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 5, 2018 |
| Last updated | Nov 1, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MS |
| Practice address |
1191 CENTRAL BLVD STE A Brentwood, CA 94513 (855) 223-7123 Fax (619) 374-7134 |
| Mailing address |
PO BOX 33568 San Diego, CA 92163 |
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 | 2 | 3 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 2 | 6 | 5 | 1 |
Sum = 49 · next multiple of 10 = 50 · 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.