DR. ALEXANDER SPEKTOR M.D., PH.D.
NPI 1205062544
Radiology - Radiation Oncology in Boston, MA
About Dr. Alexander Spektor M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER SPEKTOR M.D., PH.D. (NPI 1205062544) is an individual radiation oncology provider in Boston, Massachusetts, licensed in Massachusetts (260432) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of New York University School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Alexander Spektor M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Alexander Spektor reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1851333686 (Massachusetts)
- 531 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Alexander Spektor's NPI number?
The NPI number for Alexander Spektor is 1205062544. It was assigned to this individual provider in the NPPES registry on June 1, 2009.
Where is Alexander Spektor located?
Alexander Spektor practices at 75 Francis St Asbi-L2, Boston, MA 02115. The listed phone number is (617) 732-6310.
What is Alexander Spektor's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Alexander Spektor enrolled in Medicare?
Yes. Alexander Spektor is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Alexander Spektor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Spektor reassigns Medicare benefits to 2 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA) and Dana-Farber Cancer Institute, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Spektor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Spektor accept?
Health plans from Anthem Blue Cross and Blue Shield list Alexander Spektor as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexander Spektor affiliated with any hospitals?
According to CMS data, Alexander Spektor is affiliated with Massachusetts General Hospital and Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Spektor was last updated on July 29, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.