Quick answers
- Does David C. Semerad Ii accept Medicare assignment?
- Yes. Medicare's clinician data says David C. Semerad Ii 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.
- What is David C. Semerad Ii's NPI number?
- 1366592263. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David C. Semerad Ii works
Medicare's Facility Affiliation Data lists David C. Semerad Ii 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 McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430016
- Hegg Memorial Health CenterRock Valley, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161336
- Sioux Center HealthSioux Center, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161346
Practice locations
Addresses where David C. Semerad Ii is enrolled with Medicare (CMS data updated October 2, 2026).
- 1101 9th St SESioux Center, IA 51250 (712) 722‑1271
- 1101 9th St SE, Sioux Center Health Medical ClinicSioux Center, IA 51250 (712) 722‑1271
- 1202 21st AveRock Valley, IA 51247 (712) 476‑8000
- 807 Main St DHull, IA 51239 (712) 439‑1315
Group practices
Medicare enrollment lists David C. Semerad Ii as a member of these groups (CMS data updated October 2, 2026).
- Hegg Memorial Hospital45 clinicians in the group
- Sioux Center Health36 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Other clinicians in Hegg Memorial Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366592263 |
| 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
- 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