INTERMOUNTAIN EMERGENCY PHYSICIANS
NPI 1124005467
Emergency Medicine in Idaho Falls, ID
About Intermountain Emergency Physicians NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
INTERMOUNTAIN EMERGENCY PHYSICIANS (NPI 1124005467) is a healthcare organization registered as an emergency medicine in Idaho Falls, Idaho and active in the NPI registry since December 2005. The organization lists Matthew R. Griggs, Managing Partner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Intermountain Emergency Physicians is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
16Medicare enrollment records show 16 clinicians reassign Medicare billing to Intermountain Emergency Physicians, which bills Medicare for the services they deliver. Of these, 10 practice at this address. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (16)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Intermountain Emergency Physicians's NPI number?
The NPI number for Intermountain Emergency Physicians is 1124005467. It was assigned to this organization in the NPPES registry on December 28, 2005.
Where is Intermountain Emergency Physicians located?
Intermountain Emergency Physicians is located at 3100 Channing Way, Idaho Falls, ID 83404. The listed phone number is (208) 535-4130.
What is Intermountain Emergency Physicians's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Intermountain Emergency Physicians enrolled in Medicare?
Yes. Intermountain Emergency Physicians is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Intermountain Emergency Physicians?
According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 2 Medicare specialties reassign their Medicare billing to Intermountain Emergency Physicians. A 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 the clinician's services. The largest specialties are Emergency Medicine (14) and Nurse Practitioner (2). Of these, 10 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Intermountain Emergency Physicians was last updated on October 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Intermountain Emergency Physicians · NPI 1124005467
Emergency Medicine organization in Idaho Falls, Idaho. Organization record, active in the CMS NPPES registry since December 28, 2005.
## Identity
- **NPI:** 1124005467 (Entity type: Organization)
- **Enumerated:** December 28, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Organization subpart:** No
- **Authorized official:** Matthew Griggs, MANAGING PARTNER
## Practice location
- **Address:** 3100 CHANNING WAY, Idaho Falls, ID 83404-7533
- **Phone:** (208) 535-4130 · **Fax:** (208) 535-4125
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 16 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (14), Nurse Practitioner (2); 10 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 5, 2021
- **Other identifiers:** Other 8H997 (ID); Medicaid 806633300 (ID)
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Source: [NPI Profile](https://npiprofile.com/npi/1124005467) · Data from the CMS NPPES public registry.