Corianne Masat
Corianne Masat is a Behavior Technician in Seattle, WA, registered under NPI 1003397886.
Getting there
Here is what surrounds this office in Seattle, based on OpenStreetMap data collected Sep 15, 2026. Parking is available about 192 ft away. The nearest transit stop is 513 ft away, served by 34th Avenue West & West McGraw Street. A pharmacy sits 456 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 180 ft away.
Getting here and what is nearby
Parking 70 ft ~1 min
Restaurant Pizza Il Villaggio 74 ft ~1 min
3208 West McGraw Street, Seattle 98199
Mo-Th,Su 11:00-21:00; Fr-Sa 11:00-22:00
Coffee Serendipity Cafe 88 ft ~1 min
3222 West McGraw Street, Seattle 98199
Mo-Su 07:30-20:00
Parking 117 ft ~1 min
Restaurant Yume Sushi 125 ft ~1 min
Coffee Uptown Espresso 153 ft ~1 min
3223 West McGraw Street, Seattle 98199
Mo-Fr 06:00-16:00; Sa-Su 07:00-16:00
Coffee Starbucks 180 ft ~1 min
3300 West McGraw Street, Seattle 98199
Mo-Su 05:00-20:00
Restaurant Mura Asian Eatery 133 ft ~1 min
3216 West Wheeler Street, Seattle 98199
Parking 192 ft ~1 min
Transit West Mcgraw Street & 32nd Avenue West 284 ft ~2 min
Gas station Magnolia Chevron 257 ft ~1 min
Convenience Magnolia Chevron 298 ft ~2 min
Transit 34th Avenue West & West McGraw Street 432 ft ~2 min
Pharmacy CVS Pharmacy 456 ft ~2 min
Transit 34th Avenue West & West McGraw Street 513 ft ~2 min
Grocery Albertsons 0.20 mi ~4 min
2550 32nd Avenue West, Seattle 98199
Mo-Su 07:00-23:00
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 | 1003397886 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 28, 2018 |
| Last updated | Aug 28, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
3214 W MCGRAW ST STE 212 Seattle, WA 98199 (206) 453-4882 |
| Mailing address |
214 W MCGRAW ST STE 212 Seattle, WA 98119 |
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 | 9 | 7 | 8 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 9 | 5 | 8 | 7 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.