DR. JOHN S ABADIR M.D
NPI 1891937298
Anesthesiology in Boston, MA
About Dr. John S Abadir M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN S ABADIR M.D (NPI 1891937298) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (229061) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS and is a graduate of Georgetown University School Of Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
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. John S Abadir 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
7Medicare enrollment records show John Abadir reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Emerson, NJ 07630
- Reassigned Medicare billing, New Jersey enrollment
- 42 clinicians in this Medicare group
Fair Lawn, NJ 07410
- Reassigned Medicare billing, New Jersey enrollment
- 43 clinicians in this Medicare group
Wayne, NJ 07470
- Reassigned Medicare billing, New Jersey enrollment
- 40 clinicians in this Medicare group
Totowa, NJ 07512
- Reassigned Medicare billing, New Jersey enrollment
- 32 clinicians in this Medicare group
Woodland Park, NJ 07424
- Reassigned Medicare billing, New Jersey enrollment
- 117 clinicians in this Medicare group
Newark, NJ 07105
- Reassigned Medicare billing, New Jersey enrollment
- 10 clinicians in this Medicare group
West Orange, NJ 07052
- Reassigned Medicare billing, New Jersey enrollment
- 32 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 3
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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 Abadir's NPI number?
The NPI number for John Abadir is 1891937298. It was assigned to this individual provider in the NPPES registry on March 31, 2009.
Where is John Abadir located?
John Abadir practices at 1365 Boylston St Unit 544, Boston, MA 02215. The listed phone number is (617) 632-7000.
What is John Abadir's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Abadir enrolled in Medicare?
Yes. John Abadir 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 John Abadir's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Abadir reassigns Medicare benefits to 7 organizations: Premier Medical Alliance LLC (Emerson, NJ), Heart & Vascular Associates Of Northern Jersey, P.A. (Fair Lawn, NJ), Advanced Ambulatory Anesthesia, LLC (Wayne, NJ), Advanced Perioperative Medicine, P.A. (Totowa, NJ), Gastroenterology Associates Of New Jersey, LLC (Woodland Park, NJ) and 2 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 John Abadir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Abadir accept?
Health plans from Oscar Health list John Abadir 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.
When was this NPI record last updated?
The NPPES record for John Abadir was last updated on March 31, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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. John S Abadir, M.D · NPI 1891937298
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 31, 2009.
## Identity
- **NPI:** 1891937298 (Entity type: Individual)
- **Enumerated:** March 31, 2009
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 229061 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1365 BOYLSTON ST UNIT 544, Boston, MA 02215-3915
- **Phone:** (617) 632-7000
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Premier Medical Alliance LLC (NPI 1093142895, Emerson, NJ); Heart & Vascular Associates Of Northern Jersey, P.A. (NPI 1699889980, Fair Lawn, NJ); Advanced Ambulatory Anesthesia, LLC (NPI 1063415990, Wayne, NJ); Advanced Perioperative Medicine, P.A. (NPI 1962427807, Totowa, NJ); Gastroenterology Associates Of New Jersey, LLC (NPI 1497932271, Woodland Park, NJ); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** March 31, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1891937298) · Data from the CMS NPPES public registry.