Quick answers
- Does Alexander M. Beschloss accept Medicare assignment?
- Medicare's clinician data says Alexander M. Beschloss may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Alexander M. Beschloss's NPI number?
- 1558011874. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alexander M. Beschloss works
Medicare's Facility Affiliation Data lists Alexander M. Beschloss at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Massachusetts General HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220071
Practice locations
Addresses where Alexander M. Beschloss is enrolled with Medicare (CMS data updated October 2, 2026).
- 399 Revolution Dr, Suite 1010Somerville, MA 02145
- 62 13rh StCharlestown, MA 02129
- 95 W Main St, Suite 240Chester, NJ 07930
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Somerville
Clinicians with the same Medicare primary specialty in Somerville, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Perelman School Of Med At The University Of Pennsylvania |
| Graduation year | 2022 (4 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1558011874 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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