Quick answers
- Does Nicole A. Larsen accept Medicare assignment?
- Yes. Medicare's clinician data says Nicole A. Larsen 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 Nicole A. Larsen see?
- In 2024, CMS data shows 106 Original Medicare patients and 108 services for Nicole A. Larsen. This counts Original Medicare only and measures volume, not quality.
- What is Nicole A. Larsen's NPI number?
- 1336429190. 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 Nicole A. Larsen, 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 | 106 |
|---|---|
| Services billed to Medicare | 108 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Anesthesia for other procedure on large bowel using an endoscope (00811)15 services
- Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back (00300)13 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 pressure62%
- High cholesterol58%
- Arthritis41%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)35%
- Diabetes31%
- Chronic kidney disease24%
Hospitals where Nicole A. Larsen works
Medicare's Facility Affiliation Data lists Nicole A. Larsen 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
Practice locations
Addresses where Nicole A. Larsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 E 23rd StSioux Falls, SD 57105
- 1325 S Cliff AveSioux Falls, SD 57105
- 1325 S Cliff Ave, RadiologySioux Falls, SD 57105 (605) 322‑4878
- 909 N Iowa AveDell Rapids, SD 57022 (605) 428‑5431
Group practices
Medicare enrollment lists Nicole A. Larsen as a member of this group (CMS data updated October 2, 2026).
- Avera McKennan959 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), South Dakota →
Other nurse anesthetists in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Other clinicians in Avera McKennan
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336429190 |
| 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