Quick answers
- Does James W. Tamas accept Medicare assignment?
- Yes. Medicare's clinician data says James W. Tamas 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 James W. Tamas see?
- In 2024, CMS data shows 985 Original Medicare patients and 1,311 services for James W. Tamas. This counts Original Medicare only and measures volume, not quality.
- What is James W. Tamas's NPI number?
- 1437512068. 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 James W. Tamas, 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 | 985 |
|---|---|
| Services billed to Medicare | 1,311 |
| Different services or procedures | 127 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- X-ray of chest, 1 view (71045)161 services
- X-ray of chest, 2 views (71046)85 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)73 services
- Complete ultrasound scan behind abdominal cavity (76770)70 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)68 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 pressure70%
- High cholesterol68%
- Arthritis56%
- Chronic kidney disease31%
- Ischemic heart disease29%
- Depression26%
Hospitals where James W. Tamas works
Medicare's Facility Affiliation Data lists James W. Tamas 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.
- Centura Health-St Anthony HospitalLakewood, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060015
- Centura Health-St Anthony North Health CampusWestminster, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060104
- Goodland Regional Medical CenterGoodland, KS · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 171370
- Longmont United HospitalLongmont, CO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 060003
- St Anthony Summit Medical CenterFrisco, CO · Acute Care Hospital · Emergency services: listed by Medicare · CCN 060118
Practice locations
Addresses where James W. Tamas is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Health Park DrLouisville, CO 80027 (303) 673‑1000
- 14300 Orchard PkwyWestminster, CO 80023 (720) 627‑3180
- 355 Union Blvd, Suite 100Lakewood, CO 80228 (720) 669‑3036
Group practices
Medicare enrollment lists James W. Tamas as a member of these groups (CMS data updated October 2, 2026).
- Colorado Imaging Associates P C62 clinicians in the group
- Colorado Advanced Endovascular, LLC13 clinicians in the group
Specialties
- Interventional Radiologyprimary
Other interventional radiologists in Louisville
Clinicians with the same Medicare primary specialty in Louisville, CO — not a recommendation.
Other clinicians in Colorado Imaging Associates P C
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arkansas College Of Medicine |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437512068 |
| 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