DR. IRWIN B SIMON M.D.
NPI 1003872193
Surgery in Henderson, NV
About Dr. Irwin B Simon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IRWIN B SIMON M.D. (NPI 1003872193) is an individual surgery provider in Henderson, Nevada, licensed in Nevada (6762) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Rose Dominican Hospitals - Siena Campus, and is a graduate of Hahnemann University College Of Medicine (1984).
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
Dr. Irwin B Simon 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
2Medicare enrollment records show Irwin Simon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Henderson, NV 89052
- Reassigned Medicare billing, Nevada enrollment
Pinon, AZ 86510
- Reassigned Medicare billing, Texas enrollment
- 476 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 8
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.
Saint Rose Dominican Hospitals - Siena Campus
Acute Care Hospitals · Henderson, NVSaint Rose Dominican Hospitals - San Martin Campus
Acute Care Hospitals · Las Vegas, NVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 89052 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HENDERSON, NV 89052
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 Irwin Simon's NPI number?
The NPI number for Irwin Simon is 1003872193. It was assigned to this individual provider in the NPPES registry on April 26, 2006.
Where is Irwin Simon located?
Irwin Simon practices at 2450 W Horizon Ridge Pkwy Suite 100, Henderson, NV 89052. The listed phone number is (702) 735-2305.
What is Irwin Simon's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Irwin Simon enrolled in Medicare?
Yes. Irwin Simon 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 Irwin Simon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Irwin Simon reassigns Medicare benefits to 2 organizations: Armour, Christensen, Simon, Chartered (Henderson, NV) and Dhhs Phs Naihs Chinle Comprehensive Health Care Facility (Pinon, AZ). 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 Irwin Simon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Irwin Simon affiliated with any hospitals?
According to CMS data, Irwin Simon is affiliated with Saint Rose Dominican Hospitals - Siena Campus and Saint Rose Dominican Hospitals - San Martin Campus.
When was this NPI record last updated?
The NPPES record for Irwin Simon was last updated on November 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.