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Compare the published Medicare service mix of Christina Duffin, FNP-BC with clinicians in the same registry specialty: Family Nurse Practitioner.

NC · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Steve Balos, NP

Family Nurse Practitioner · Pinehurst, NC

Shared published services
2 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
  • Fluoroscopic guidance for needle placement (77002)
34%Service-mix similarityView profile →

Purvi Surti, FNP-C

Family Nurse Practitioner · High Point, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
32%Service-mix similarityView profile →

Jennifer Rhodes Woody, NP-C

Family Nurse Practitioner · Chapel Hill, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
28%Service-mix similarityView profile →

Renita Deloatch Smallwood, FNP

Family Nurse Practitioner · Ahoskie, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
22%Service-mix similarityView profile →

Shannon Marie Kimmel

Family Nurse Practitioner · Charlotte, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
19%Service-mix similarityView profile →

Jasmine Marybelle Zuchowski

Family Nurse Practitioner · Charlotte, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
17%Service-mix similarityView profile →

Candice Pike Clark, N.P.

Family Nurse Practitioner · Chapel Hill, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
16%Service-mix similarityView profile →

Nancy Elizabeth Deem, FNP

Family Nurse Practitioner · Cornelius, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
16%Service-mix similarityView profile →

Kelly Harvey Harrison, FNP

Family Nurse Practitioner · Roanoke Rapids, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
16%Service-mix similarityView profile →

Amanda D Marshburn, NP

Family Nurse Practitioner · Richlands, NC

Shared published services
1 shared services · view billing descriptions
  • Aspiration and/or injection of fluid from large joint (20610)
9%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.