Quick answers
- Does William F. Dresen accept Medicare assignment?
- Yes. Medicare's clinician data says William F. Dresen 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 William F. Dresen see?
- In 2024, CMS data shows 2,655 Original Medicare patients and 5,962 services for William F. Dresen. This counts Original Medicare only and measures volume, not quality.
- What is William F. Dresen's NPI number?
- 1205152469. 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 William F. Dresen, 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 | 2,655 |
|---|---|
| Services billed to Medicare | 5,962 |
| Different services or procedures | 85 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,578 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)1,214 services
- Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)434 services
- Programming of dual lead pacemaker system (93280)250 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)220 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 pressure75%
- High cholesterol67%
- Atrial fibrillation56%
- Ischemic heart disease45%
- Heart failure45%
- Arthritis44%
Hospitals where William F. Dresen works
Medicare's Facility Affiliation Data lists William F. Dresen 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.
- Billings Clinic HospitalBillings, MT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 270004
- Glendive Medical CenterGlendive, MT · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 271332
- Livingston HealthcareLivingston, MT · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 271317
- Powell Valley HospitalPowell, WY · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 531310
- Sheridan Memorial HosptialPlentywood, MT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 271322
Practice locations
Addresses where William F. Dresen is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 Yellowstone AveCody, WY 82414 (307) 527‑7561
- 2800 10th Ave NBillings, MT 59101 (406) 238‑5046
- 801 N 29th StBillings, MT 59101 (406) 238‑2500
Group practices
Medicare enrollment lists William F. Dresen as a member of these groups (CMS data updated October 2, 2026).
- Billings Clinic Specialty Supplies and Services, LLC824 clinicians in the group
- Daniels Memorial Hospital21 clinicians in the group
Specialties
- Cardiac Electrophysiologyprimary
Other cardiac electrophysiologists in Wyoming
Clinicians with the same Medicare primary specialty in Wyoming — not a recommendation.
Other clinicians in Billings Clinic Specialty Supplies and Services, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Miami, Lm Miller School Of Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1205152469 |
| 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