John Mcmahon, BCBA, M.ED, B.S.
John Mcmahon, BCBA, M.ED, B.S. is a provider specialising in Behavior Analyst in Warwick, RI, registered under NPI 1003441304. 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 Warwick, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 877 ft away. The nearest transit stop is 0.44 mi away, served by Airport Interlink (700 Jefferson). If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
Parking 483 ft ~2 min
Parking 517 ft ~2 min
Parking 877 ft ~4 min
Hotel Homewood Suites by Hilton Providence-Warwick 0.36 mi ~8 min
Hotel Hilton Garden Inn Providence Airport/Warwick 0.42 mi ~9 min
Transit Opposite 700 Jefferson 0.43 mi ~9 min
Transit Airport Interlink (Jefferson after Thurber) 0.44 mi ~9 min
Transit Airport Interlink (700 Jefferson) 0.44 mi ~9 min
Restaurant Ironworks Tavern 0.44 mi ~9 min
697 Jefferson Boulevard, Warwick 02886
Mo-Th 11:30-22:00; Fr,Sa 11:30-23:00; Su 11:30-21:00
Restaurant El Marinero 0.44 mi ~9 min
Hotel Hyatt Place Warwick Providence Airport 0.46 mi ~10 min
Coffee Honey Dew 0.48 mi ~10 min
670 Jefferson Boulevard, Warwick 02886
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 | 1003441304 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 6, 2020 |
| Last updated | Apr 2, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | BCBA, M.ED, B.S. |
| Practice address |
491 KILVERT ST Warwick, RI 02886 (401) 618-6991 Fax (401) 618-6995 |
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 | 4 | 4 | 1 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 4 | 2 | 3 | 0 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.