Brian Ha
Brian Ha is an Occupational Therapy Assistant in Costa Mesa, CA, registered under NPI 1003371295.
Getting there
Here is what surrounds this office in Costa Mesa, based on OpenStreetMap data collected Sep 22, 2026. Parking is available about 0.25 mi away. There is EV charging 0.49 mi from the office (Rove) — useful if you are driving in from out of town. The nearest transit stop is 0.35 mi away, served by Adams-Harbor. If you arrive early, there is a coffee shop 0.36 mi away.
Getting here and what is nearby
Transit Adams-Mesa Verde 278 ft ~2 min
Transit Adams-Mesa Verde 371 ft ~2 min
Parking 805 ft ~4 min
Parking 0.22 mi ~5 min
Parking 0.25 mi ~6 min
Coffee The Caffeine Club 0.27 mi ~6 min
Restaurant Broken Yolk 0.27 mi ~6 min
Mo-Fr 07:00-14:00; Sa,Su 07:00-15:00
Coffee That Boba Place 0.29 mi ~6 min
Restaurant Haus Of Pizza 0.31 mi ~7 min
1500 Adams Avenue, Costa Mesa 92626
Grocery Vons 0.33 mi ~7 min
2701 Harbor Boulevard, Costa Mesa 92626
Mo-Su 06:00-23:00
Restaurant Habit Burger & Grill 0.34 mi ~7 min
1510 Adams Avenue, Costa Mesa
Transit Adams-Harbor 0.35 mi ~7 min
Coffee Better Buzz Coffee 0.36 mi ~8 min
Convenience 7-Eleven 0.41 mi ~9 min
2683 Harbor Boulevard, Costa Mesa 92626
EV charging Tesla Supercharger 0.48 mi ~10 min
Convenience ReCharge Market by Gelson's 0.48 mi ~10 min
2666 Harbor Boulevard, Costa Mesa 92627
Mo-Su 06:00-21:00
EV charging Rove 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 |
|---|---|---|
| 413011 | CA | Occupational Therapy Assistant primary |
This provider holds licence 413011 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 Occupational Therapy Assistant covers
An occupational therapy assistant is a person who has graduated from an occupational therapy assistant program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, has successfully completed a period of supervised fieldwork experience required by the accredited occupational therapy assistant program, has passed a nationally recognized entry-level examination for occupational therapy assistants, and fulfills state requirements for licensure, certification, or registration. An occupational therapy assistant provides interventions under the supervision of an occupational therapist which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapy assistants address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life. NUCC Health Care Provider Taxonomy, code 224Z00000X
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 | 1003371295 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 1, 2019 |
| Last updated | Feb 1, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
1700 ADAMS AVE Costa Mesa, CA 92626 (714) 556-2288 |
| Mailing address |
521 SHELLEY ST Santa Ana, CA 92703 |
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 | 7 | 1 | 2 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 2 | 2 | 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.