Karen Larsen, ARNP
NPI 1154762409 · Family Nurse Practitioner · Ocala, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Larsen, ARNP is a Family Nurse Practitioner provider in Ocala, FL (NPI 1154762409).
Provider details
- NPI number
- 1154762409
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- ARNP2944842 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,414 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 456 | $110 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 323 | $77 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 220 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 195 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 193 | $10 |
| Urinalysis, Manual Test81002 | 189 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 144 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 740 | 245 |
| Levothyroxine Sodium | 582 | 161 |
| Losartan Potassium | 369 | 111 |
| Amlodipine Besylate | 354 | 110 |
| Lisinopril | 311 | 95 |
| Omeprazole | 300 | 95 |
| Simvastatin | 249 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$896 across 27 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-07-16
- Last updated
- 2023-10-09
- Certified
- 2023-10-09
Frequently asked questions
- What is Karen Larsen's NPI number?
- Karen Larsen's National Provider Identifier (NPI) is 1154762409, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Larsen's specialty?
- Karen Larsen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Larsen located?
- Karen Larsen's practice location on file with NPPES is 2516 Sw College Rd, Ocala, FL 34471-1612.
- What is Karen Larsen's phone number?
- The practice phone number listed in the NPPES registry for Karen Larsen is (352) 368-1330.
- Does Karen Larsen accept Medicare?
- Karen Larsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Larsen's NPI active?
- Yes — Karen Larsen's NPI (1154762409) is active in the NPPES registry as of the last update on 2023-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.