Quick answers
- Does Laura A. Diamandopoulos accept Medicare assignment?
- Yes. Medicare's clinician data says Laura A. Diamandopoulos 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 Laura A. Diamandopoulos see?
- In 2024, CMS data shows 443 Original Medicare patients and 982 services for Laura A. Diamandopoulos. This counts Original Medicare only and measures volume, not quality.
- What is Laura A. Diamandopoulos's NPI number?
- 1265436505. 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 Laura A. Diamandopoulos, 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 | 443 |
|---|---|
| Services billed to Medicare | 982 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)180 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)101 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)100 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)82 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)70 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 cholesterol75%
- Ischemic heart disease53%
- Arthritis52%
- Atrial fibrillation41%
- Diabetes38%
Hospitals where Laura A. Diamandopoulos works
Medicare's Facility Affiliation Data lists Laura A. Diamandopoulos 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
- 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 Laura A. Diamandopoulos is enrolled with Medicare (CMS data updated October 2, 2026).
- 1300 Anne St NWBemidji, MN 56601 (218) 333‑5000
- 1611 Anne St NWBemidji, MN 56601 (218) 333‑5000
Group practices
Medicare enrollment lists Laura A. Diamandopoulos as a member of this group (CMS data updated October 2, 2026).
- Sanford Health of Northern Minnesota343 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →
Other cardiologists 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 |
|---|---|
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265436505 |
| 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