Dr. Tyson Amundsen, MD
- Medicare services, 2024
- 153
- Medicare patients, 2024
- 161
- Part D claims, 2024
- 40
- Hospital affiliations
- 3
- Industry payments
- $971
- Practice address
- 368 East Riverside Drive, Suite B, Saint George, UT 84790
- Practice phone
- Call (435) 674-3109
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St. George Endoscopy Center
Surgery Center - Medicare-Certified · Saint George, Utah
Find Dr. Amundsen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Tyson Amundsen is an internist in Saint George, Utah
Dr. Amundsen practices at St. George Endoscopy Center in Saint George, Utah.
Dr. Amundsen's NPI, 1013573054, was assigned on May 15, 2019. Dr. Amundsen graduated from University of Arizona College of Medicine in 2019. Dr. Amundsen holds Tennessee license 68349.
- NPI
- 1013573054NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153655626
- NPI enumeration date
- May 15, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (435) 674-3109
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tyson Amundsen practices at St. George Endoscopy Center in Saint George, Utah
Dr. Amundsen's primary practice is St. George Endoscopy Center, at 368 East Riverside Drive, Suite B, Saint George, UT 84790. The practice phone is (435) 674-3109.
- St. George Endoscopy Center368 East Riverside Drive, Suite B, Saint George, UT 84790Phone(435) 674-3109
Source: Dmand AI Affiliation Data
Dr. Tyson Amundsen is affiliated with 5 sites of care and 2 medical groups
Dr. Amundsen's primary practice is St. George Endoscopy Center in Saint George, Utah. Dr. Amundsen is also affiliated with St. George Regional Hospital. The medical group on file is Utah Gastroenterology. Dmand AI also links Dr. Amundsen to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Tyson Amundsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Amundsen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. George Endoscopy Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tyson Amundsen is one of 663 internists in Utah
Internal medicine is Dr. Amundsen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Amundsen is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Amundsen
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Tyson Amundsen billed Medicare for 153 services in 2024
CMS data shows 153 Medicare services from Dr. Amundsen across 3 procedure codes in 2024, for 161 Medicare patients. Medicare paid $15,509 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Amundsen compared with the Utah median for internists, 2024
- Dr. Amundsen
- Utah median
- Medicare services
- 153vs 44666% below
- Medicare patients
- 161vs 19116% below
Medians across 623 internists in Utah with Dmand AI profiles that report each measure.
Dr. Amundsen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Amundsen and other internists in Utah.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tyson Amundsen treated 161 Medicare patients in 2024, average age 77
CMS counts 161 Medicare patients who saw Dr. Amundsen in 2024. The largest group is 75 to 84, with 67 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Amundsen's median patient age at 65, with 52% women.
Dr. Amundsen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Amundsen's Medicare patients by sex, 2024
- Women8955%
- Men7245%
Chronic conditions among Dr. Amundsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis66%
- Chronic kidney disease54%
- Ischemic heart disease52%
- Diabetes50%
- Mood disorders47%
- Depression45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Amundsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tyson Amundsen wrote 40 Medicare Part D claims in 2024
In 2024, Dr. Amundsen wrote 40 Medicare Part D claims for 20 patients. 88% of them were for generic drugs.
Dr. Amundsen's Part D claims by kind of drug, 2024
- Generic35 claims88%
- Brand-name and other5 claims13%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Tyson Amundsen ranks in the 95th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Amundsen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 297 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Amundsen, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Amundsen ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 95th percentile297 procedures
- Colonoscopy
- 93rd percentile195 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Tyson Amundsen received $971 in industry payments from 2024 to 2025
CMS Open Payments shows 45 general payments to Dr. Amundsen from 14 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 91% of the total. Janssen Pharmaceuticals, Inc paid the most, $268.
General payments to Dr. Amundsen by program year, 2024 to 2025
General payments to Dr. Amundsen by kind, 2024 to 2025
- Food and beverage$88691%
- Education$859%
Companies that paid Dr. Amundsen the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tyson Amundsen graduated from University of Arizona College of Medicine
Dr. Amundsen graduated from University of Arizona College of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Tyson Amundsen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Tyson Amundsen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Tyson Amundsen's NPI number?
Dr. Tyson Amundsen's NPI number is 1013573054. It was assigned on May 15, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Tyson Amundsen?
Dr. Tyson Amundsen is an internist in Saint George, Utah. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Tyson Amundsen practice?
Dr. Amundsen practices at 368 East Riverside Drive, Suite B, Saint George, UT 84790. Dr. Amundsen's primary practice is St. George Endoscopy Center in Saint George, Utah. Dmand AI also links Dr. Amundsen to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Tyson Amundsen's office phone number?
The practice phone on file for Dr. Amundsen is (435) 674-3109.
What is Dr. Tyson Amundsen's medical license number?
Dr. Amundsen holds Tennessee license 68349.
Which hospitals is Dr. Tyson Amundsen affiliated with?
Dr. Amundsen is affiliated with St. George Regional Hospital. Dmand AI links Dr. Amundsen to 2 more hospitals.
What medical group is Dr. Tyson Amundsen part of?
Dr. Amundsen is linked to Utah Gastroenterology. Dmand AI links Dr. Amundsen to 1 more medical group.
Does Dr. Tyson Amundsen accept Medicare?
Yes. CMS data shows Dr. Amundsen billed Medicare for 153 services in 2024, and Dr. Amundsen accepts Medicare assignment.
How many Medicare patients does Dr. Tyson Amundsen see?
CMS counts 161 Medicare patients who saw Dr. Amundsen in 2024, with an average age of 77.
What services does Dr. Tyson Amundsen bill to Medicare?
In 2024, Dr. Amundsen's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99232) and hospital inpatient care (99239).
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Where did Dr. Tyson Amundsen go to medical school?
Dr. Amundsen graduated from University of Arizona College of Medicine in 2019.
Has Dr. Tyson Amundsen received payments from drug or device companies?
CMS Open Payments shows $971 in general payments to Dr. Amundsen from 14 companies from 2024 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Tyson Amundsen been practicing?
Dr. Amundsen graduated from medical school in 2019, 7 years ago.
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