Quick answers
- Where does Sandra Mattar see patients?
- Medicare's clinician data lists 2 practice locations, including Boston, MA. Call before your visit to confirm the address.
- What is Sandra Mattar's specialty?
- Medicare lists Clinical Psychologist as the primary specialty.
- Does Sandra Mattar accept Medicare assignment?
- Yes. Medicare's clinician data says Sandra Mattar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sandra Mattar?
- (617) 414-5245, as listed in official Medicare / NPI Registry data.
- What is Sandra Mattar's NPI number?
- 1558843631. 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 Sandra Mattar is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Boston Medical Ctr PlBoston, MA 02118 (617) 414‑5245
- 85 E Newton St, Suite 905Boston, MA 02118 (617) 414‑5245
Group practices
Medicare enrollment lists Sandra Mattar as a member of this group (CMS data updated 2026-10-02).
- Boston University Psychiatry Associates, Inc.106 clinicians in the group
Specialties
- Clinical Psychologistprimary
Find other clinicians: Clinical Psychologist, Massachusetts →
Other clinical psychologists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | PSY |
|---|---|
| Graduation year | 1994 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558843631 |
| 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 2026-10-02, retrieved 2026-10-29
- 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