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Compare the published Medicare service mix of William Larsen, FNP with clinicians in the same registry specialty: Family Nurse Practitioner.

ITHACA, NY · Exact areaEdit location

2024 published service data · 31 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jenny Ellen Ross, NP-C

Family Nurse Practitioner · Ithaca, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
92%Service-mix similarityView profile →

Christine Leigh Monacelli, FNP

Family Nurse Practitioner · Ithaca, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
76%Service-mix similarityView profile →

Elizabeth Billie Marshall, NP

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Ralph Joseph Zinn, FNP

Family Nurse Practitioner · Ithaca, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
65%Service-mix similarityView profile →

Melissa Alt, PMC, APRN, FNP-BC

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
63%Service-mix similarityView profile →

Jeannie Trujillo, FNP

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
61%Service-mix similarityView profile →

Susan Mckernan Mckelvey, FNP

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
60%Service-mix similarityView profile →

Elizabeth Gebhart Howard Gebhart, RN, BSN, FNP-C, MSN

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
58%Service-mix similarityView profile →

Eric Knaake, MSN, CRNP, FNP-C

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
57%Service-mix similarityView profile →

Sarah Elizabeth Roach, MS, APRN, FNP-BC

Family Nurse Practitioner · Ithaca, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
57%Service-mix similarityView profile →

Natacia Lee Rodriguez, FNP

Family Nurse Practitioner · Ithaca, NY

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
56%Service-mix similarityView profile →

Rachel Elizabeth Ayers, FNP-C

Family Nurse Practitioner · Ithaca, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
56%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.