Marissa Kennedy, BCBA
Marissa Kennedy, BCBA is a provider specialising in Behavior Analyst in Thornton, CO, registered under NPI 1003705500. 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 Thornton, based on OpenStreetMap data collected Oct 18, 2026. Parking is available about 752 ft away. The nearest transit stop is 0.49 mi away. A pharmacy sits 0.41 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 415 ft away.
Getting here and what is nearby
Restaurant Chick-fil-A 312 ft ~2 min
1301 East 120th Avenue, Thornton 80233
Mo-Sa 06:00-22:00
Parking 375 ft ~2 min
Coffee Dutch Bros. Coffee 415 ft ~2 min
Parking 441 ft ~2 min
Restaurant TGI Fridays 582 ft ~3 min
1251 East 120th Avenue, Thornton 80233
Mo-Su 11:00-02:00
Parking 752 ft ~3 min
Restaurant Olive Garden 879 ft ~4 min
Grocery Sprouts Farmers Market 0.25 mi ~5 min
1131 East 120th Avenue, Thornton 80233
Mo-Su 07:00-22:00
Grocery Target 0.30 mi ~6 min
1001 East 120th Avenue, Thornton 80233
Mo-Su 07:00-22:00
Pharmacy Walgreens 0.41 mi ~9 min
750 East 120th Avenue, Northglenn 80233
Gas station Phillips 66 0.46 mi ~10 min
Transit 0.47 mi ~10 min
Convenience My Goods Market 0.47 mi ~10 min
Transit 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
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 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 | 1003705500 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 30, 2025 |
| Last updated | Jun 30, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | BCBA |
| Practice address |
1401 E 120TH AVE Thornton, CO 80233 (720) 704-5889 |
| Mailing address |
1557 N LOGAN ST UNIT 726 Denver, CO 80203 |
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 | 7 | 0 | 5 | 5 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 0 | 1 | 5 | 0 |
Sum = 40 · next multiple of 10 = 40 · check digit = 0 · actual last digit = 0
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.