Marissa Senior
Marissa Senior is a Behavior Technician in Carlsbad, CA, registered under NPI 1003335357. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Carlsbad, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 0.21 mi away. The nearest transit stop is 435 ft away. A pharmacy sits 1,023 ft from the entrance (Carlsbad Village Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.34 mi away.
Getting here and what is nearby
Restaurant Subway 286 ft ~2 min
880 Carlsbad Village Drive, Carlsbad 92008
10:00-21:00
Transit 315 ft ~2 min
Transit 353 ft ~2 min
Restaurant Vallarta Express 367 ft ~2 min
2952 Harding Street, Carlsbad 92008
Transit 435 ft ~2 min
Convenience Food Mart 440 ft ~2 min
920 Carlsbad Village Drive, Carlsbad 92008
Restaurant Al's Cafe in the village 418 ft ~2 min
795 Carlsbad Village Drive, Carlsbad 92008
Gas station Chevron 466 ft ~2 min
920 Carlsbad Village Drive, Carlsbad 92008
Hotel Motel 6 Carlsbad - Village 664 ft ~3 min
1006 Carlsbad Village Drive, Carlsbad 92008
Parking 693 ft ~3 min
Grocery Smart & Final 818 ft ~4 min
Parking 908 ft ~4 min
Gas station 7-Eleven 954 ft ~4 min
Convenience 7-Eleven 1,021 ft ~4 min
1089 Carlsbad Village Drive, Carlsbad 92008-1804
Pharmacy Carlsbad Village Pharmacy 1,023 ft ~4 min
Coffee Ground Up Cafe 0.20 mi ~4 min
Hotel Extended Stay America 0.20 mi ~4 min
1050 Grand Ave, Carlsbad 92008
Parking 0.21 mi ~5 min
Convenience Food Mart 0.28 mi ~6 min
1145 Carlsbad Village Drive, Carlsbad 92008
Coffee Baba Coffee - Coffee Carlsbad 0.29 mi ~6 min
2727 State Street, Carlsbad 92008
Gas station Shell 0.29 mi ~6 min
1145 Carlsbad Village Drive, Carlsbad 92008
Coffee Vinaka Cafe 0.34 mi ~7 min
Hotel Carlsbad Inn Beach Resort 0.47 mi ~10 min
3075 Carlsbad Boulevard, Carlsbad 92008
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
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 106S00000X | Behavior Technician | — | — | primary |
| 222Q00000X | Developmental Therapist | — | — |
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 | 1003335357 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 18, 2017 |
| Last updated | May 26, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
2928 JEFFERSON ST STE 100 Carlsbad, CA 92008 (760) 637-9996 |
| Mailing address |
16782 VON KARMAN AVE STE 11 Irvine, CA 92606 |
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 | 3 | 5 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 3 | 1 | 3 | 1 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.