DR. OMAR EZZIDDIN M.D.
NPI 1821232901
Anesthesiology in Springfield, MA
About Dr. Omar Ezziddin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OMAR EZZIDDIN M.D. (NPI 1821232901) is an individual anesthesiology provider in Springfield, Massachusetts, licensed in Illinois (036131711) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and maintains a secondary practice location in Worcester.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Omar Ezziddin 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 Omar Ezziddin reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01118
- Reassigned Medicare billing, Massachusetts enrollment
- 144 clinicians in this Medicare group
Springfield, MA 01104
- Reassigned Medicare billing, Massachusetts enrollment
- 38 clinicians in this Medicare group
Springfield, MA 01107
- Reassigned Medicare billing, Massachusetts enrollment
- 56 clinicians in this Medicare group
Springfield, MA 01107
- Reassigned Medicare billing, Massachusetts enrollment
- 30 clinicians in this Medicare group
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 539 clinicians in this Medicare group
Hartford, CT 06105
- Reassigned Medicare billing, Connecticut and Massachusetts enrollments
- 302 clinicians in this Medicare group
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 417 clinicians in this Medicare group
Oxford, MA 01540
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 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 13
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.
Cooley Dickinson Hospital Inc,the
Acute Care Hospitals · Northampton, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, 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.
SPRINGFIELD, MA 01118
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 Omar Ezziddin's NPI number?
The NPI number for Omar Ezziddin is 1821232901. It was assigned to this individual provider in the NPPES registry on April 21, 2009.
Where is Omar Ezziddin located?
Omar Ezziddin practices at 908 Allen St, Springfield, MA 01118. The listed phone number is (413) 796-7494.
What is Omar Ezziddin's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Omar Ezziddin enrolled in Medicare?
Yes. Omar Ezziddin 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 Omar Ezziddin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Omar Ezziddin reassigns Medicare benefits to 8 organizations: Springfield Anesthesia Service, Inc. (Springfield, MA), Amsurg Mdsine Anesthesia LLC (Springfield, MA), Pioneer Sedation PLLC (Springfield, MA), Pulse Anesthesia Consultants PC (Springfield, MA), Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, 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 Omar Ezziddin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Omar Ezziddin affiliated with any hospitals?
According to CMS data, Omar Ezziddin is affiliated with Cooley Dickinson Hospital Inc,the and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Omar Ezziddin was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Omar Ezziddin, M.D. · NPI 1821232901
Anesthesiology physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since April 21, 2009.
## Identity
- **NPI:** 1821232901 (Entity type: Individual)
- **Enumerated:** April 21, 2009
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036131711 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 908 ALLEN ST, Springfield, MA 01118-2533
- **Phone:** (413) 796-7494
## 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): Springfield Anesthesia Service, Inc. (NPI 1093768830, Springfield, MA); Amsurg Mdsine Anesthesia LLC (NPI 1932521366, Springfield, MA); Pioneer Sedation PLLC (NPI 1154886810, Springfield, MA); Pulse Anesthesia Consultants PC (NPI 1407560618, Springfield, MA); Mass General Brigham Medical Group Western Massachusetts Inc (NPI 1295787919, Northampton, MA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 2009
## Record status
- **NPPES last updated:** November 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1821232901) · Data from the CMS NPPES public registry.