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Compare the published Medicare service mix of Shane Eugene Mass, DMSC, PA-C with clinicians in the same registry specialty: Physician Assistant.

COMMERCE CITY, CO · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 297 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mckenzie L Gunderson, PA-C

Physician Assistant · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
100%Service-mix similarity~9.3 milesView profile →

Meredith Celia Carey, PA-C

Physician Assistant · Denver, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
100%Service-mix similarity~6.4 milesView profile →

Caroline Maher

Physician Assistant · Denver, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
99%Service-mix similarity~7.9 milesView profile →

Chad Michael Lucci, PA-C

Physician Assistant · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
87%Service-mix similarity~9.3 milesView profile →

Michael Duff Brichant, PA

Physician Assistant · Arvada, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
86%Service-mix similarity~9.5 milesView profile →

Denise Ann Flaspohler

Physician Assistant · Denver, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
86%Service-mix similarity~6.0 milesView profile →

Lydia L. Prusinowski

Physician Assistant · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
85%Service-mix similarity~9.3 milesView profile →

William Ray Miller Ii

Physician Assistant · Denver, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
85%Service-mix similarity~6.0 milesView profile →

Cristina Parada, PA-C

Physician Assistant · Westminster, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
85%Service-mix similarity~7.2 milesView profile →

Jessica Chonlahan

Physician Assistant · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
85%Service-mix similarity~9.3 milesView profile →

Angus Kenneth Riley

Physician Assistant · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
85%Service-mix similarity~6.6 milesView profile →

Jenna Oppenheimer

Physician Assistant · Denver, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
80%Service-mix similarity~6.0 milesView 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 approximate distance 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.