Quick answers
- Does Karen R. Larsen accept Medicare assignment?
- Yes. Medicare's clinician data says Karen R. 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 Karen R. Larsen see?
- In 2024, CMS data shows 336 Original Medicare patients and 6,179 services for Karen R. Larsen. This counts Original Medicare only and measures volume, not quality.
- What is Karen R. Larsen's NPI number?
- 1154762409. 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 Karen R. 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 | 336 |
|---|---|
| Services billed to Medicare | 6,179 |
| Different services or procedures | 135 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,200 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)456 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)323 services
- Insertion of needle into vein for collection of blood sample (36415)220 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)195 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%
- Arthritis36%
- Ischemic heart disease30%
- Diabetes29%
- Chronic kidney disease29%
Practice locations
Addresses where Karen R. Larsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 2131 SW 20th PlOcala, FL 34471
- 2230 SW 19th Ave RdOcala, FL 34471 (352) 237‑4133
Group practices
Medicare enrollment lists Karen R. Larsen as a member of this group (CMS data updated October 2, 2026).
- Ocala Family Medical Center Inc63 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Ocala
Clinicians with the same Medicare primary specialty in Ocala, FL — not a recommendation.
Other clinicians in Ocala Family Medical Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 1995 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1154762409 |
| 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 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