Quick answers
- Does McKinley J. Hallfrisch accept Medicare assignment?
- Yes. Medicare's clinician data says McKinley J. Hallfrisch 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 McKinley J. Hallfrisch see?
- In 2024, CMS data shows 403 Original Medicare patients and 3,113 services for McKinley J. Hallfrisch. This counts Original Medicare only and measures volume, not quality.
- What is McKinley J. Hallfrisch's NPI number?
- 1588159701. 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 McKinley J. Hallfrisch, 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 | 403 |
|---|---|
| Services billed to Medicare | 3,113 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Test for allergy using allergenic extract (95004)1,707 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)296 services
- Test for allergy using allergenic extract injected into skin (95024)281 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)186 services
- Removal of impacted ear wax (69210)151 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 pressure67%
- High cholesterol65%
- Arthritis48%
- Diabetes24%
- Anxiety22%
- Depression21%
Hospitals where McKinley J. Hallfrisch works
Medicare's Facility Affiliation Data lists McKinley J. Hallfrisch 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.
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 270012
- Great Falls Clinic HospitalGreat Falls, MT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 270086
Practice locations
Addresses where McKinley J. Hallfrisch is enrolled with Medicare (CMS data updated October 2, 2026).
- 1400 29th St SGreat Falls, MT 59405 (406) 454‑2171
- 3000 15th Ave SGreat Falls, MT 59405 (406) 454‑2171
Group practices
Medicare enrollment lists McKinley J. Hallfrisch as a member of this group (CMS data updated October 2, 2026).
- Great Falls Clinic LLC72 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Great Falls
Clinicians with the same Medicare primary specialty in Great Falls, MT — not a recommendation.
Other clinicians in Great Falls Clinic LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588159701 |
| 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