Quick answers
- Which hospitals does Alexander D. Pyden work at?
- Medicare's official clinician data lists Alexander D. Pyden at 5 hospitals: Anna Jaques Hospital, Beth Israel Deaconess Medical Center, Lahey Hospital & Medical Center, Burlington, Northeast Hospital Corporation and Winchester Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alexander D. Pyden see patients?
- Medicare's clinician data lists 2 practice locations, including Burlington, MA. Call before your visit to confirm the address.
- What is Alexander D. Pyden's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Alexander D. Pyden accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander D. Pyden 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 Alexander D. Pyden's NPI number?
- 1548650971. 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 D. Pyden works
Medicare's Facility Affiliation Data lists Alexander D. Pyden at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Anna Jaques HospitalNewburyport, MA · Acute Care Hospital · CCN 220029
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · CCN 220086
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · CCN 220171
- Northeast Hospital CorporationBeverly, MA · Acute Care Hospital · CCN 220033
- Winchester HospitalWinchester, MA · Acute Care Hospital · CCN 220105
Practice locations
Addresses where Alexander D. Pyden is enrolled with Medicare (CMS data updated 2026-10-02).
- 29 Mall RdBurlington, MA 01805
- 41 Mall RdBurlington, MA 01805
Group practices
Medicare enrollment lists Alexander D. Pyden as a member of this group (CMS data updated 2026-10-02).
- Lahey Clinic Inc1,381 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Burlington
Clinicians with the same Medicare primary specialty in Burlington, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548650971 |
| 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