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Compare the published Medicare service mix of Olivia Persina, PA with clinicians in the same registry specialty: Physician Assistant.

WINCHESTER, VA · Exact areaEdit location

2024 published service data · 86 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Richard Field Lewis, P.A.

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
47%Service-mix similarityView profile →

Poupee Mol Pang, P.A.-C

Physician Assistant · Winchester, VA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
47%Service-mix similarityView profile →

Ellena Mae Thomas, PA

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
41%Service-mix similarityView profile →

Brandon L Miller, PA

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
37%Service-mix similarityView profile →

Ramziddin Khalmuratov, PA-C

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
35%Service-mix similarityView profile →

Zachary Sheldon Sites, PA-S

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
35%Service-mix similarityView profile →

Marissa Denise Sager

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
34%Service-mix similarityView profile →

Michelle Olivia D'alessio, PA

Physician Assistant · Winchester, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
33%Service-mix similarityView profile →

Katlyn Shepley, PA-C

Physician Assistant · Winchester, VA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
27%Service-mix similarityView profile →

Alexandra Mccusker

Physician Assistant · Winchester, VA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
24%Service-mix similarityView profile →

Hanna-Nicole Stanley, PA

Physician Assistant · Winchester, VA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
23%Service-mix similarityView profile →

John James Walker, MPAS, DSC, APA-C

Physician Assistant · Winchester, VA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
19%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.