SIMON DAVID EIREF MD
NPI 1992772388
Surgery in Danbury, CT
About Simon David Eiref Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIMON DAVID EIREF MD (NPI 1992772388) is an individual surgery provider in Danbury, Connecticut, licensed in Connecticut (66121) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Simon David Eiref 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
3Medicare enrollment records show Simon Eiref reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Danbury, CT 06810
- Reassigned Medicare billing, Connecticut enrollment
- 818 clinicians in this Medicare group
New York, NY 10002
- Reassigned Medicare billing, New York enrollment
- 346 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 329 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 7
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06810 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.
DANBURY, CT 06810
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 Simon Eiref's NPI number?
The NPI number for Simon Eiref is 1992772388. It was assigned to this individual provider in the NPPES registry on March 3, 2006.
Where is Simon Eiref located?
Simon Eiref practices at 24 Hospital Ave, Danbury, CT 06810. The listed phone number is (203) 739-7131.
What is Simon Eiref's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Simon Eiref enrolled in Medicare?
Yes. Simon Eiref 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 Simon Eiref's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Simon Eiref reassigns Medicare benefits to 3 organizations: Nuvance Health Medical Practice Ct, Inc. (Danbury, CT), Icahn School Of Medicine At Mount Sinai (New York, NY) and Icahn School Of Medicine At Mount Sinai (New York, NY). 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 Simon Eiref's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Simon Eiref was last updated on June 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Simon David Eiref, MD · NPI 1992772388
Surgery physician in Danbury, Connecticut. Individual provider, active in the CMS NPPES registry since March 3, 2006.
## Identity
- **NPI:** 1992772388 (Entity type: Individual)
- **Enumerated:** March 3, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 66121 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 24 HOSPITAL AVE, Danbury, CT 06810-6099
- **Phone:** (203) 739-7131 · **Fax:** (203) 739-1554
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Nuvance Health Medical Practice Ct, Inc. (NPI 1407898117, Danbury, CT); Icahn School Of Medicine At Mount Sinai (NPI 1124497912, New York, NY); Icahn School Of Medicine At Mount Sinai (NPI 1215488127, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1998
## Record status
- **NPPES last updated:** June 26, 2020
- **Other identifiers:** Medicaid 021718192 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1992772388) · Data from the CMS NPPES public registry.