JOHN ROBERT BERGER MD
NPI 1184201931
Anesthesiology in Boston, MA
About John Robert Berger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN ROBERT BERGER MD (NPI 1184201931) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1021681) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Robert Berger 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAOther 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 John Berger's NPI number?
The NPI number for John Berger is 1184201931. It was assigned to this individual provider in the NPPES registry on March 26, 2021.
Where is John Berger located?
John Berger practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.
What is John Berger's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Berger enrolled in Medicare?
Yes. John Berger 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.
What insurance does John Berger accept?
Health plans from WellSense Health Plan list John Berger 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 John Berger affiliated with any hospitals?
According to CMS data, John Berger is affiliated with Massachusetts General Hospital.
When was this NPI record last updated?
The NPPES record for John Berger was last updated on September 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# John Robert Berger, MD · NPI 1184201931
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 26, 2021.
## Identity
- **NPI:** 1184201931 (Entity type: Individual)
- **Enumerated:** March 26, 2021
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 1021681 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2696
- **Phone:** (617) 726-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** September 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1184201931) · Data from the CMS NPPES public registry.