Quick answers
- Does Dennis W. Maier accept Medicare assignment?
- Yes. Medicare's clinician data says Dennis W. Maier 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 Dennis W. Maier see?
- In 2024, CMS data shows 124 Original Medicare patients and 625 services for Dennis W. Maier. This counts Original Medicare only and measures volume, not quality.
- What is Dennis W. Maier's NPI number?
- 1497787725. 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 Dennis W. Maier, 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 | 124 |
|---|---|
| Services billed to Medicare | 625 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Removal of skin and tissue, 20.0 sq cm or less (11042)292 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)114 services
- New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (99202)37 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)20 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 cholesterol68%
- Arthritis57%
- Diabetes55%
- Chronic kidney disease52%
- Depression42%
Hospitals where Dennis W. Maier works
Medicare's Facility Affiliation Data lists Dennis W. Maier 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
- Intermountain Health St Vincent Regional HospitalBillings, MT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 270049
Practice locations
Addresses where Dennis W. Maier is enrolled with Medicare (CMS data updated October 2, 2026).
- 2900 12th Ave N, Suite 315wBillings, MT 59101 (406) 237‑8270
Group practices
Medicare enrollment lists Dennis W. Maier as a member of this group (CMS data updated October 2, 2026).
- SCL Health Medical Group - Billings LLC297 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Billings
Clinicians with the same Medicare primary specialty in Billings, MT — not a recommendation.
Other clinicians in SCL Health Medical Group - Billings LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497787725 |
| 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