DR. MICHAEL DAVID CHAIM FISHMAN M.D.
NPI 1205093366
Radiology - Diagnostic Radiology in Boston, MA
About Dr. Michael David Chaim Fishman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL DAVID CHAIM FISHMAN M.D. (NPI 1205093366) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (250515) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of George Washington University School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses 2
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. Michael David Chaim Fishman M.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
8Medicare enrollment records show Michael Fishman reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02109
- Reassigned Medicare billing, Massachusetts enrollment
- 350 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- 577 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: East Boston Neighborhood Health Center Corp
- 456 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 84 clinicians in this Medicare group
Lowell, MA 01854
- Reassigned Medicare billing, Massachusetts enrollment
- 93 clinicians in this Medicare group
Springfield, MA 01104
- Reassigned Medicare billing, Massachusetts enrollment
- 26 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 4
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, MANantucket Cottage Hospital
Acute Care Hospitals · Nantucket, MAMartha's Vineyard Hospital Inc
Critical Access Hospitals · Oak Bluffs, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Michael Fishman's NPI number?
The NPI number for Michael Fishman is 1205093366. It was assigned to this individual provider in the NPPES registry on May 16, 2008.
Where is Michael Fishman located?
Michael Fishman practices at 55 Fruit St Massachusetts General Hospital, Dept Of Radiology, Boston, MA 02114. The listed phone number is (617) 726-8354.
What is Michael Fishman's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Michael Fishman enrolled in Medicare?
Yes. Michael Fishman 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 Michael Fishman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Fishman reassigns Medicare benefits to 8 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Mass General Brigham Community Physicians Inc. (Boston, MA), Internal Medical Associates-Ebnhc (East Boston, MA), Neighborhealth Corporation (East Boston, MA) and 3 more organizations, listed in the Medicare section above. 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 Michael Fishman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Fishman accept?
Health plans from Taro Health list Michael Fishman 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 Michael Fishman affiliated with any hospitals?
According to CMS data, Michael Fishman is affiliated with Massachusetts General Hospital, Brigham And Women's Hospital, Nantucket Cottage Hospital and Martha's Vineyard Hospital Inc.
When was this NPI record last updated?
The NPPES record for Michael Fishman was last updated on February 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Michael David Chaim Fishman, M.D. · NPI 1205093366
Diagnostic Radiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 16, 2008.
## Identity
- **NPI:** 1205093366 (Entity type: Individual)
- **Enumerated:** May 16, 2008
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 250515 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, MASSACHUSETTS GENERAL HOSPITAL, DEPT OF RADIOLOGY, Boston, MA 02114-2621
- **Phone:** (617) 726-8354
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Mass General Brigham Community Physicians Inc. (NPI 1265094122, Boston, MA); Internal Medical Associates-Ebnhc (NPI 1558481879, East Boston, MA); Neighborhealth Corporation (NPI 1316994411, East Boston, MA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** George Washington University School Of Medicine, class of 2006
## Record status
- **NPPES last updated:** February 7, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1205093366) · Data from the CMS NPPES public registry.