Quick answers
- Where does Mark Nissenbaum see patients?
- Medicare's clinician data lists 1 practice location in Chestnut Hill, MA. Call before your visit to confirm the address.
- What is Mark Nissenbaum's specialty?
- Medicare lists Maxillofacial Surgery as the primary specialty.
- Does Mark Nissenbaum accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Nissenbaum 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 Mark Nissenbaum?
- (617) 731-8888, as listed in official Medicare / NPI Registry data.
- What is Mark Nissenbaum's NPI number?
- 1902897184. 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 Mark Nissenbaum is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Boylston St, Suite 305Chestnut Hill, MA 02467 (617) 731‑8888
Group practices
Medicare enrollment lists Mark Nissenbaum as a member of these groups (CMS data updated 2026-10-02).
- Chestnut Hill Oral Surgery LLC3 clinicians in the group
- Jeffrey C. Sacks DMD MS PC3 clinicians in the group
Specialties
- Maxillofacial Surgeryprimary
Find other clinicians: Maxillofacial Surgery, Massachusetts →
Other maxillofacial surgeons in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | DDM |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902897184 |
| 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