Calliyah Williams
Calliyah Williams is a Behavior Technician in Tallahassee, FL, registered under NPI 1003554353.
Getting there
Here is what surrounds this office in Tallahassee, based on OpenStreetMap data collected Oct 5, 2026. Parking is available about 401 ft away. There is EV charging 0.35 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 611 ft away. A pharmacy sits 860 ft from the entrance (WellPack Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 138 ft ~1 min
Parking 221 ft ~1 min
Parking 401 ft ~2 min
Transit Mahan Drive and Capital Circle Northeast 505 ft ~2 min
Transit Mahan Commons (Mahan at Capital Circle Northeast) 593 ft ~3 min
Transit 611 ft ~3 min
Restaurant Tsuki Sushi 739 ft ~3 min
2819 Mahan Drive, Tallahassee 32308
Restaurant Zaxby's 746 ft ~3 min
Restaurant Parks Twisted Pizzeria and Grill 751 ft ~3 min
Pharmacy Walgreens 773 ft ~3 min
Grocery Apna Bazaar 771 ft ~3 min
2819 Mahan Drive, Tallahassee 32308
Pharmacy WellPack Pharmacy 860 ft ~4 min
1624 Capital Circle Northeast, Tallahassee
Grocery Publix 0.25 mi ~6 min
3122-600 Mahan Drive, Tallahassee 32308-5508
Mo-Su 07:00-22:00
Grocery Rajdhani South Asian Groceries 0.33 mi ~7 min
EV charging 0.35 mi ~8 min
Gas station Shell 0.43 mi ~9 min
Convenience Circle K 0.44 mi ~9 min
3211 Mahan Drive, Tallahassee 32308
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 |
|---|---|---|
| W4542-104-00-747-0 | FL | Behavior Technician primary |
This provider holds licence W4542-104-00-747-0 issued in FL. 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 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 | 1003554353 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 26, 2022 |
| Last updated | May 26, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
2868 MAHAN DR Tallahassee, FL 32308 (850) 391-6060 |
| Mailing address |
300 INTERNATIONAL PKWY STE 2003 Lake Mary, FL 32746 |
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 | 5 | 5 | 4 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 8 | 3 | 1 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.