Quick answers
- Where does Nathan A. Koens see patients?
- Medicare's clinician data lists 4 practice locations, including Sioux Falls, SD, Aberdeen, SD and Mitchell, SD. Call before your visit to confirm the address.
- What is Nathan A. Koens's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Nathan A. Koens accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan A. Koens accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Nathan A. Koens?
- (605) 328-2663, as listed in official Medicare / NPI Registry data.
- What is Nathan A. Koens's NPI number?
- 1205331873. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Nathan A. Koens is enrolled with Medicare (CMS data updated 2026-10-02).
- 1020 W 18th StSioux Falls, SD 57104 (605) 328‑2663
- 3015 3rd Ave SE, Suite 104Aberdeen, SD 57401 (605) 725‑6700
- 525 N Foster StMitchell, SD 57301 (605) 995‑5635
- 701 3rd Ave SClear Lake, SD 57226
Group practices
Medicare enrollment lists Nathan A. Koens as a member of these groups (CMS data updated 2026-10-02).
- Sanford Health Network351 clinicians in the group
- Sanford Clinic268 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205331873 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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