DR. TYSON AMUNDSEN MD
NPI 1013573054
Internal Medicine - Gastroenterology in St George, UT
About Dr. Tyson Amundsen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TYSON AMUNDSEN MD (NPI 1013573054) is an individual gastroenterology provider in St George, Utah, licensed in Utah (14214304-1205) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Cedar City Hospital, and maintains a secondary practice location in Collierville.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Tyson Amundsen 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 Reassignment
Medicare enrollment records show Tyson Amundsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
St George, UT 84790
- Reassigned Medicare billing, Utah enrollment
- 79 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cedar City Hospital
Acute Care Hospitals · Cedar City, UTSt. George Regional Hospital
Acute Care Hospitals · St George, UTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 84790 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ST GEORGE, UT 84790
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 Tyson Amundsen's NPI number?
The NPI number for Tyson Amundsen is 1013573054. It was assigned to this individual provider in the NPPES registry on May 15, 2019.
Where is Tyson Amundsen located?
Tyson Amundsen practices at 368 E Riverside Dr Ste A, St George, UT 84790. The listed phone number is (435) 673-1149.
What is Tyson Amundsen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Tyson Amundsen enrolled in Medicare?
Yes. Tyson Amundsen 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 organization bills Medicare for Tyson Amundsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tyson Amundsen reassigns Medicare benefits to Utah Gastroenterology LLC (St George, UT). The 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 Tyson Amundsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tyson Amundsen accept?
Health plans from BridgeSpan Health Company, Molina Healthcare, Regence BlueCross BlueShield of Utah, Select Health and University of Utah Health Plans list Tyson Amundsen 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.
Is Tyson Amundsen affiliated with any hospitals?
According to CMS data, Tyson Amundsen is affiliated with Cedar City Hospital and St. George Regional Hospital.
When was this NPI record last updated?
The NPPES record for Tyson Amundsen was last updated on July 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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. Tyson Amundsen, MD · NPI 1013573054
Gastroenterology physician in St George, Utah. Individual provider, active in the CMS NPPES registry since May 15, 2019.
## Identity
- **NPI:** 1013573054 (Entity type: Individual)
- **Enumerated:** May 15, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 14214304-1205 (Utah)
- **Sole proprietor:** No
## Practice location
- **Address:** 368 E RIVERSIDE DR STE A, St George, UT 84790-6897
- **Phone:** (435) 673-1149
## 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:** Utah Gastroenterology LLC (NPI 1255405957, St George, UT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Arizona College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** July 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1013573054) · Data from the CMS NPPES public registry.