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Compare the published Medicare service mix of Olivia Ross Ferguson, PA-C with clinicians in the same registry specialty: Specialty details in registry.

VA · Exact areaEdit location

2024 published service data · 115 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Nicole G Nahmod, PA

Physician Assistant (CMS) · Charlottesville, VA

Shared published services
3 shared services · view billing descriptions
  • Injection of trigger points, 3 or more muscles (20553)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
61%Service-mix similarityView profile →

Laura Eva Ripley, PA

Physician Assistant (CMS) · Newport News, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
58%Service-mix similarityView profile →

Hannah L Dyson, PA-C

Physician Assistant (CMS) · Colonial Heights, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
53%Service-mix similarityView profile →

Nirali Rajen Patel, PA-C

Physician Assistant (CMS) · Mc Lean, VA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
50%Service-mix similarityView profile →

Cindy Pham, PA-C

Physician Assistant (CMS) · Mc Lean, VA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
50%Service-mix similarityView profile →

Kristyn M Zalar, PA-C

Physician Assistant (CMS) · Norfolk, VA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
50%Service-mix similarityView profile →

Gina L. Mitchell, PA-C

Physician Assistant (CMS) · Charlottesville, VA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
50%Service-mix similarityView profile →

Mary Elizabeth Zempolich, PA-C

Physician Assistant (CMS) · Fairfax, VA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
50%Service-mix similarityView profile →

Vincent Gerard Williams, PA-C

Physician Assistant (CMS) · Richmond, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
46%Service-mix similarityView profile →

Andrea M. White, PA-C, ATC, OTC

Physician Assistant (CMS) · Charlottesville, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
45%Service-mix similarityView profile →

Susan C Hill, PAC

Physician Assistant (CMS) · Roanoke, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
45%Service-mix similarityView profile →

Paul J. Marino, PA-C

Physician Assistant (CMS) · Reston, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
44%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.