Quick answers
- Does John F. Wagener accept Medicare assignment?
- Yes. Medicare's clinician data says John F. Wagener 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 John F. Wagener see?
- In 2024, CMS data shows 1,428 Original Medicare patients and 4,058 services for John F. Wagener. This counts Original Medicare only and measures volume, not quality.
- What is John F. Wagener's NPI number?
- 1972879161. 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 John F. Wagener, 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 | 1,428 |
|---|---|
| Services billed to Medicare | 4,058 |
| Different services or procedures | 86 |
| 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)934 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)306 services
- Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)276 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)264 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)219 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 disease60%
- Heart failure48%
- Arthritis42%
- Atrial fibrillation37%
Hospitals where John F. Wagener works
Medicare's Facility Affiliation Data lists John F. Wagener 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 Heart Hospital of South DakotaSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430095
- Avera Marshall Regional Medical CenterMarshall, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241359
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430016
- Avera St Mary's HospitalPierre, SD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 430015
- Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160124
Practice locations
Addresses where John F. Wagener is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1101 9th St SE, Nch Sioux Center Medical ClinicSioux Center, IA 51250 (712) 722‑2609
- 116 E 10th St, Suite 101Spencer, IA 51301 (712) 264‑3500
- 1325 S Cliff AveSioux Falls, SD 57105
- 300 S Bruce StMarshall, MN 56258 (507) 537‑9007
- 4500 W 69th StSioux Falls, SD 57108
Group practices
Medicare enrollment lists John F. Wagener as a member of this group (CMS data updated October 2, 2026).
- Heart Hospital of South Dakota LLC67 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Iowa →
Other cardiologists in Sioux Center
Clinicians with the same Medicare primary specialty in Sioux Center, IA — not a recommendation.
Other clinicians in Heart Hospital of South Dakota LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972879161 |
| 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