Quick answers
- Does Isaac R. Thomason accept Medicare assignment?
- Yes. Medicare's clinician data says Isaac R. Thomason accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Isaac R. Thomason see?
- In 2024, CMS data shows 210 Original Medicare patients and 214 services for Isaac R. Thomason. This counts Original Medicare only and measures volume, not quality.
- What is Isaac R. Thomason's NPI number?
- 1649282542. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Isaac R. Thomason, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 210 |
|---|---|
| Services billed to Medicare | 214 |
| Different services or procedures | 1 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
Most frequent services
- Measurement of liver stiffness (91200)214 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure73%
- High cholesterol57%
- Arthritis47%
- Diabetes43%
- Depression40%
- Chronic kidney disease32%
Hospitals where Isaac R. Thomason works
Medicare's Facility Affiliation Data lists Isaac R. Thomason at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- University of Utah Hospital and ClinicsSalt Lake City, UT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 460009
Practice locations
Addresses where Isaac R. Thomason is enrolled with Medicare (CMS data updated October 2, 2026).
- 50 N Medical DrSalt Lake City, UT 84132
Group practices
Medicare enrollment lists Isaac R. Thomason as a member of this group (CMS data updated October 2, 2026).
- University of Utah Adult Services1,788 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Salt Lake City
Clinicians with the same Medicare primary specialty in Salt Lake City, UT — not a recommendation.
Other clinicians in University of Utah Adult Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Southwestern Medical School At Dallas |
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649282542 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians