Kirk Chang, M.A., BCBA
Kirk Chang, M.A., BCBA is a provider specialising in Behavior Analyst in Fremont, CA, registered under NPI 1003130113. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Fremont, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 712 ft away. There is EV charging 0.46 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 884 ft away, served by Paseo Padre Parkway & Walnut Avenue. A pharmacy sits 0.41 mi from the entrance (Daysman Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Parking 145 ft ~1 min
Transit Walnut Avenue & Liberty Street 319 ft ~2 min
Transit Walnut Avenue & Liberty Street 396 ft ~2 min
Parking 435 ft ~2 min
Restaurant Sala Thai 499 ft ~2 min
3241 Walnut Avenue, Fremont
Mo,We,Th 11:00-15:00,16:00-20:30; Fr 11:00-15:00,16:00-21:00; Sa 12:00-16:00,17:00-21:00; Su 12:00-16:00,17:00-20:30
Restaurant Papasan Rolls and Bowls 522 ft ~2 min
3353 Walnut Avenue, Fremont 94538
Mo off; Tu-Th,Sa-Su 11:30-14:30,17:30-20:30; Fr 11:30-14:30,17:30-21:00
Restaurant Il Porcino 539 ft ~3 min
3339 Walnut Avenue, Fremont 94538
Mo off; Tu-Th 11:30-14:30,17:00-20:30; Fr-Sa 11:30-14:30,17:00-21:00; Su 17:00-20:30
Coffee Pour Decisions Craft 656 ft ~3 min
3530 Beacon Avenue, Fremont 94538-1404
Mo,Tu 07:00-17:00; We 07:00-19:00; Th,Su 07:00-20:00; Fr,Sa 07:00-21:00
Parking 712 ft ~3 min
Transit Paseo Padre Parkway & Walnut Avenue 884 ft ~4 min
Grocery Rythu Bazaar 886 ft ~4 min
3185 Walnut Avenue, Fremont 94538
Grocery Smart & Final 946 ft ~4 min
Mo-Su 06:00-22:00
Convenience Kwik & Convenient Liquor Supermarket 977 ft ~4 min
EV charging Gateway 0.25 mi ~6 min
Pharmacy Ohlone Pharmacy Kaiser Fremont 0.25 mi ~5 min
Mo-Fr 09:00-17:30
Pharmacy Niles Pharmacy Kaiser Fremont 0.25 mi ~6 min
Mo-Fr 08:30-20:00; Sa 09:00-18:00; Su,PH 09:30-18:00
Convenience Sunshine Mart 0.27 mi ~6 min
Fremont Boulevard, Fremont 94538
Coffee Philz Coffee 0.31 mi ~7 min
Convenience 7-Eleven 0.31 mi ~7 min
Coffee Stardust Coffee House 0.35 mi ~8 min
Mo-Su 09:30-20:30
Gas station Chevron 0.39 mi ~8 min
Grocery Bharat Bazar 0.40 mi ~9 min
Mo-Su 09:00-22:00
Pharmacy Daysman Pharmacy 0.41 mi ~9 min
3760 Mowry Avenue, Fremont 94538
Mo-Fr 09:00-19:00
EV charging Tesla Supercharger 0.43 mi ~9 min
EV charging Tesla Supercharger 0.46 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 |
|---|---|---|
| 1-09-5185 | CA | Behavior Analyst primary |
This provider holds licence 1-09-5185 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 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 | 1003130113 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 18, 2010 |
| Last updated | Nov 1, 2016 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | M.A., BCBA |
| Practice address |
39420 LIBERTY ST Fremont, CA 94538 (510) 698-2896 |
| Mailing address |
2708 CLYMER LN Fremont, CA 94538 |
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 | 1 | 3 | 0 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 3 | 0 | 1 | 2 |
Sum = 37 · next multiple of 10 = 40 · check digit = 3 · actual last digit = 3
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.