Quick answers
- Does Maria H. Truong accept Medicare assignment?
- Yes. Medicare's clinician data says Maria H. Truong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Maria H. Truong's NPI number?
- 1326685447. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Maria H. Truong is enrolled with Medicare (CMS data updated October 2, 2026).
- 10100 Washingtonian BlvdGaithersburg, DC 20878 (240) 937‑1835
Group practices
Medicare enrollment lists Maria H. Truong as a member of this group (CMS data updated October 2, 2026).
- Onr National Speech Pathology Inc59 clinicians in the group
Specialties
Find other clinicians: Occupational Therapist in Private Practice, District of Columbia →
Other occupational therapists in District of Columbia
Clinicians with the same Medicare primary specialty in District of Columbia — not a recommendation.
Other clinicians in Onr National Speech Pathology Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OT |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326685447 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians