Quick answers
- Does Byron S. Nielsen accept Medicare assignment?
- Yes. Medicare's clinician data says Byron S. Nielsen 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 Byron S. Nielsen see?
- In 2024, CMS data shows 748 Original Medicare patients and 63,811 services for Byron S. Nielsen. This counts Original Medicare only and measures volume, not quality.
- What is Byron S. Nielsen's NPI number?
- 1316157928. 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 Byron S. Nielsen, 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 | 748 |
|---|---|
| Services billed to Medicare | 63,811 |
| Different services or procedures | 142 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, ferric carboxymaltose, 1 mg (J1439)42,750 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,650 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,029 services
- Insertion of needle into vein for collection of blood sample (36415)995 services
- Calcium level, total (82310)966 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%
- Chronic kidney disease75%
- Diabetes48%
- Arthritis36%
- Ischemic heart disease34%
Hospitals where Byron S. Nielsen works
Medicare's Facility Affiliation Data lists Byron S. Nielsen 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.
- Avera Sacred Heart HospitalYankton, SD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 430012
- Avera St Anthony's HospitalO' Neill, NE · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 281329
- Bryan Medical CenterLincoln, NE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 280003
- Faith HealthNorfolk, NE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 280125
- Wagner Community Memorial Hospital - CAHWagner, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431315
Practice locations
Addresses where Byron S. Nielsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 110 S Visiting Eagle St, Santee Health CenterNiobrara, NE 68760 (402) 857‑2300
- 1104 W 8th StYankton, SD 57078 (605) 665‑7841
- 300 N 2nd StO'Neill, NE 68763 (402) 336‑2611
- 704 N 3rd St, Alegent Health Plainview HospitalPlainview, NE 68769 (402) 582‑4245
Group practices
Medicare enrollment lists Byron S. Nielsen as a member of these groups (CMS data updated October 2, 2026).
- Sacred Heart Health Services153 clinicians in the group
- Yankton Medical Clinic PC59 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Nebraska
Clinicians with the same Medicare primary specialty in Nebraska — not a recommendation.
Other clinicians in Sacred Heart Health Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316157928 |
| 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