Alexandra Niiyama
Alexandra Niiyama is a Behavior Technician in San Jose, CA, registered under NPI 1003469115.
Getting there
Here is what surrounds this office in San Jose, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 0.24 mi away. The nearest transit stop is 171 ft away, served by North 1st Street & West Mission Street. If you arrive early, there is a coffee shop 0.42 mi away.
Getting here and what is nearby
Transit North 1st Street & East Mission Street 57 ft ~1 min
Transit North 1st Street & East Mission Street 151 ft ~1 min
Transit North 1st Street & West Mission Street 171 ft ~1 min
Restaurant Jackie's Place 264 ft ~1 min
840 North 1st Street, San Jose 95112
Mo-Tu off; We,Su 11:00-19:00; Th-Sa 11:00-21:00
Parking 525 ft ~2 min
Parking 817 ft ~4 min
Restaurant Togo's 959 ft ~4 min
900 North 1st Street, San Jose 95112
Mo-Fr 09:00-21:00; Sa 10:00-20:00; Su 10:00-16:00
Convenience TAK Market & Liquor 0.24 mi ~5 min
698 North 3rd Street, San Jose 95112
Parking 0.24 mi ~5 min
Convenience Taylor Arco 0.26 mi ~6 min
697 North 4th Street, San Jose 95112
Mo-Fr 07:00-21:00; Sa-Su 07:00-20:30
Gas station Taylor Gas 0.27 mi ~6 min
697 North 4th Street, San Jose 95112
Mo-Fr 07:00-21:00; Sa-Su 07:00-20:30
Restaurant Wienerschnitzel 0.27 mi ~6 min
702 North 4th Street, San Jose 95112
Mo-Th 10:00-23:00; Fr-Sa 10:00-24:00; Su 10:00-23:00
Convenience ExtraMile 0.32 mi ~7 min
1002 North 1st Street, San Jose 95112
Gas station Propel 0.32 mi ~7 min
1002 North 1st Street, San Jose 95112
Gas station Chevron 0.32 mi ~7 min
1002 North 1st Street, San Jose 95112
Grocery Santo Market 0.35 mi ~8 min
245 East Taylor Street, San Jose 95112
09:00-15:00
Coffee Roy’s Station 0.42 mi ~9 min
197 Jackson Street, San Jose 95112
Mo-Fr 08:00-14:00; Sa-Su 08:00-15:00; Jan 1 off; Dec 31 08:00-13:00
Grocery Nijiya Market 0.48 mi ~10 min
240 Jackson Street, San Jose 95112
09:00-20:00; Jan 1,Dec 25 09:00-18:00
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 Behavior Technician covers
The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work. NUCC Health Care Provider Taxonomy, code 106S00000X
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 | 1003469115 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 17, 2019 |
| Last updated | Mar 19, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
800 N 1ST ST FL 2 San Jose, CA 95112 (925) 266-8400 |
| Mailing address |
2730 SHADELANDS DR BLDG 10 Walnut Creek, CA 94598 |
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 | 4 | 6 | 9 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 6 | 9 | 1 | 2 |
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.