Quick answers
- Does Randall J. Ambroz accept Medicare assignment?
- Yes. Medicare's clinician data says Randall J. Ambroz 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 Randall J. Ambroz see?
- In 2024, CMS data shows 2,179 Original Medicare patients and 3,920 services for Randall J. Ambroz. This counts Original Medicare only and measures volume, not quality.
- What is Randall J. Ambroz's NPI number?
- 1174939300. 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 Randall J. Ambroz, 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 | 2,179 |
|---|---|
| Services billed to Medicare | 3,920 |
| Different services or procedures | 136 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Screening mammography (77067)360 services
- Screening 3d breast mammography (77063)344 services
- X-ray of chest, 1 view (71045)299 services
- X-ray of chest, 2 views (71046)219 services
- Ct scan head or brain without contrast (70450)191 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 cholesterol71%
- High blood pressure70%
- Arthritis54%
- Ischemic heart disease32%
- Depression30%
- Diabetes28%
Hospitals where Randall J. Ambroz works
Medicare's Facility Affiliation Data lists Randall J. Ambroz 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.
- Sanford Bagley Medical CenterBagley, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241328
- Sanford Bemidji Medical CenterBemidji, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240100
- Sanford Medical Center FargoFargo, ND · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 350011
Practice locations
Addresses where Randall J. Ambroz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1300 Anne St NWBemidji, MN 56601 (218) 333‑5000
Group practices
Medicare enrollment lists Randall J. Ambroz as a member of this group (CMS data updated October 2, 2026).
- Sanford Health of Northern Minnesota343 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Bemidji
Clinicians with the same Medicare primary specialty in Bemidji, MN — not a recommendation.
Other clinicians in Sanford Health of Northern Minnesota
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nebraska College Of Medicine |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174939300 |
| 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