Margaret Dassira
Margaret Dassira is a School Psychologist in Arlington, VA, registered under NPI 1003454216.
Getting there
Here is what surrounds this office in Arlington, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 270 ft away. The nearest transit stop is 572 ft away, served by 2nd St S at S Courthouse Rd. If you arrive early, there is a coffee shop 0.23 mi away.
Getting here and what is nearby
Transit Sequoia/DHS 108 ft ~1 min
Parking 201 ft ~1 min
Parking 226 ft ~1 min
Parking 270 ft ~2 min
Convenience 7-Eleven 342 ft ~2 min
2311 2nd Street South, Arlington 22204-2009
24/7
Transit S Courthouse Rd at 2nd St S 528 ft ~2 min
Transit 2nd St S at S Courthouse Rd 572 ft ~3 min
Restaurant Panda Express 0.20 mi ~5 min
931 Pershing Drive, Fort Myer 22211
Mo-Fr 10:00-20:00; Sa-Su 10:30-19:00
Coffee Starbucks 0.23 mi ~5 min
106 McNair Road, Fort Myer 22211
Mo-Fr 06:00-17:00; Sa 08:00-16:00; Su 09:00-16:00
Restaurant Subway 0.23 mi ~5 min
106 McNair Road, Fort Myer 22211
Mo-Fr 08:00-18:00; Sa 09:00-18:00; Su 11:00-17:00
Restaurant Strike Zone 0.41 mi ~9 min
224 McNair Road, Fort Myer 22211
Mo 07:00-17:00; Tu-Fr 07:00-21:00
Grocery Fort Myer Commissary 0.44 mi ~9 min
523 Carpenter Road, Fort Myer 22211
Mo-Fr 08:00-19:30; Sa 08:00-18:30; Su 08:00-18:00
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 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 | 1003454216 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 18, 2019 |
| Last updated | Dec 18, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
2110 WASHINGTON BLVD Arlington, VA 22204 (703) 228-6000 |
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 | 5 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 5 | 8 | 2 | 2 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.