DR. ARIEL EYLLSSE HIRSCH MD
NPI 1992783781
Radiology - Radiation Oncology in Boston, MA
About Dr. Ariel Eyllsse Hirsch Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARIEL EYLLSSE HIRSCH MD (NPI 1992783781) is an individual radiation oncology provider in Boston, Massachusetts, licensed in Massachusetts (221091) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of State University Of New York Downstate Medical Center (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Ariel Eyllsse Hirsch Md 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 Ariel Hirsch reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 7 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 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 14
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Boston Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Ariel Hirsch's NPI number?
The NPI number for Ariel Hirsch is 1992783781. It was assigned to this individual provider in the NPPES registry on January 3, 2006.
Where is Ariel Hirsch located?
Ariel Hirsch practices at 830 Harrison Ave Moakley Building Ll100, Boston, MA 02118. The listed phone number is (617) 638-7070.
What is Ariel Hirsch's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Ariel Hirsch enrolled in Medicare?
Yes. Ariel Hirsch 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 Ariel Hirsch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Hirsch reassigns Medicare benefits to 2 organizations: Boston University Radiation Oncology, Inc. (Boston, MA) and Bmc Affiliated Physicians, 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 Ariel Hirsch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ariel Hirsch accept?
Health plans from Taro Health and WellSense Health Plan list Ariel Hirsch 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 Ariel Hirsch affiliated with any hospitals?
According to CMS data, Ariel Hirsch is affiliated with Boston Medical Center.
When was this NPI record last updated?
The NPPES record for Ariel Hirsch was last updated on March 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.