Quick answers
- Which hospitals does Matthew G. Oser work at?
- Medicare's official clinician data lists Matthew G. Oser at 1 hospital: Brigham and Women's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew G. Oser see patients?
- Medicare's clinician data lists 1 practice location in Boston, MA. Call before your visit to confirm the address.
- What is Matthew G. Oser's specialty?
- Medicare lists Medical Oncology as the primary specialty.
- Does Matthew G. Oser accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew G. Oser 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 Matthew G. Oser's NPI number?
- 1720373772. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew G. Oser works
Medicare's Facility Affiliation Data lists Matthew G. Oser at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · CCN 220110
Practice locations
Addresses where Matthew G. Oser is enrolled with Medicare (CMS data updated 2026-10-02).
- 450 Brookline AveBoston, MA 02215
Group practices
Medicare enrollment lists Matthew G. Oser as a member of this group (CMS data updated 2026-10-02).
- Dana-Farber Cancer Institute, Inc.684 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720373772 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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