William Tyson
William Tyson is a School Psychologist in Rockville, MD, registered under NPI 1003631839.
Getting there
Here is what surrounds this office in Rockville, based on OpenStreetMap data collected Oct 11, 2026. Parking is available about 0.33 mi away at North Garage. There is EV charging 756 ft from the office — useful if you are driving in from out of town. The nearest transit stop is 628 ft away, served by S Campus Dr & Campus Dr. If you arrive early, there is a coffee shop 0.30 mi away.
Getting here and what is nearby
Parking 334 ft ~2 min
Transit Montgomery College+W Campus Dr 588 ft ~3 min
Transit S Campus Dr & Campus Dr 599 ft ~3 min
Parking 599 ft ~3 min
Transit S Campus Dr & Campus Dr 628 ft ~3 min
EV charging 756 ft ~3 min
Coffee Fresh Baguette 0.21 mi ~5 min
Restaurant Taipei Cafe 0.24 mi ~5 min
Grocery Great Wall Supermarket 0.24 mi ~5 min
460 Hungerford Drive, Rockville 20850
Gas station Hungerford Marathon 0.29 mi ~6 min
801 Hungerford Drive, Rockville 20850
Coffee Yi Fang Tea 0.30 mi ~6 min
777 Hungerford Drive, Rockville 20850
Convenience 7-Eleven 0.30 mi ~6 min
Restaurant Pho 75 0.30 mi ~6 min
711 Hungerford Drive, Rockville 20850
Mo-Su 09:00-18:30; Tu 09:00-16:00; We off
Parking North Garage 0.33 mi ~7 min
North Campus Drive, Rockville 20850
Grocery Giant 0.37 mi ~8 min
625 Hungerford Drive, Rockville 20850
Restaurant Popeyes 0.38 mi ~8 min
587 Hungerford Drive, Rockville 20850
Mo-We 10:00-22:00; Th 10:00-22:30; Fr 10:00-23:00; Sa 10:00-22:30; Su 10:00-20:00
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 |
|---|---|---|
| CER-57572-B3L9H2 | MD | School Psychologist primary |
This provider holds licence CER-57572-B3L9H2 issued in MD. 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 School covers
A psychologist whose specialty is concerned with the science and practice of psychology with children, youth, families; learners of all ages; and the schooling process. The basic education and training of school psychologists prepares them to provide a range of psychological diagnosis, assessment, intervention, prevention, health promotion, and program development and evaluation services with a special focus on the developmental processes of children and youth within the context of schools, families and other systems. School psychologists are prepared to intervene at the individual and system level, and develop, implement, and evaluate preventive programs. In these efforts, they conduct ecologically valid assessments and intervene to promote positive learning environments within which children and youth from diverse backgrounds to ensure that all have equal access to effective educational and psychological services that promote healthy development NUCC Health Care Provider Taxonomy, code 103TS0200X
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 | 1003631839 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 18, 2024 |
| Last updated | Nov 18, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
850 HUNGERFORD DR Rockville, MD 20850 (240) 740-5640 |
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 | 6 | 3 | 1 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 3 | 2 | 8 | 6 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.