Quick answers
- Does Keri L. Orstad accept Medicare assignment?
- Yes. Medicare's clinician data says Keri L. Orstad 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 Keri L. Orstad see?
- In 2024, CMS data shows 290 Original Medicare patients and 461 services for Keri L. Orstad. This counts Original Medicare only and measures volume, not quality.
- What is Keri L. Orstad's NPI number?
- 1821009143. 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 Keri L. Orstad, 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 | 290 |
|---|---|
| Services billed to Medicare | 461 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)169 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)156 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)41 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)26 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)23 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%
- Arthritis69%
- Depression56%
- Anxiety47%
- Ischemic heart disease46%
Hospitals where Keri L. Orstad works
Medicare's Facility Affiliation Data lists Keri L. Orstad 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 de Smet Memorial Hospital - CAHDe Smet, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431332
- Hawarden Regional HealthcareHawarden, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161311
- Sanford Canton-Inwood Medical Center - CAHCanton, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431333
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430027
Practice locations
Addresses where Keri L. Orstad is enrolled with Medicare (CMS data updated October 2, 2026).
- 1112 S Lake Ave, Suite 201Sioux Falls, SD 57104 (605) 312‑5350
- 1321 W 22nd StSioux Falls, SD 57105 (605) 328‑1990
- 2601 S Ellis RdSioux Falls, SD 57106
- 4405 E 26th StSioux Falls, SD 57103
- 901 4th St NWWatertown, SD 57201
Group practices
Medicare enrollment lists Keri L. Orstad as a member of these groups (CMS data updated October 2, 2026).
- Sanford Medical Center857 clinicians in the group
- Sanford Clinic268 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Other clinicians in Sanford Medical Center
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) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821009143 |
| 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