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

FRISCO, CO · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Cora Zimmerman, PA-C

Physician Assistant · Frisco, CO

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)
  • Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)
  • 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 →

Christopher Cail, PA-C, ATC

Physician Assistant · Frisco, CO

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)
  • 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 moderate level of medical decision making, if using time, 45 minutes or more (99204)
40%Service-mix similarityView profile →

Holley Alexander Spears, PA-C

Physician Assistant · Frisco, CO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Mri scan of lower spinal canal without contrast (72148)
35%Service-mix similarityView profile →

Heidi Gruber, PA-C

Physician Assistant · Frisco, CO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • X-ray of hip, 2-3 views (73502)
35%Service-mix similarityView profile →

Caroline Stone Whalen

Physician Assistant · Frisco, CO

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)
  • 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 moderate level of medical decision making, if using time, 45 minutes or more (99204)
33%Service-mix similarityView profile →

Annie M. Bowen, PA-C

Physician Assistant · Frisco, CO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection into tendon or ligament (20550)
31%Service-mix similarityView profile →

Georgia W Wiener, PA-C

Physician Assistant · Frisco, CO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • X-ray of shoulder, minimum of 2 views (73030)
30%Service-mix similarityView profile →

Laura Beth Humen, PA-C

Physician Assistant · Frisco, CO

Shared published services
3 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)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, minimum of 4 views (72110)
27%Service-mix similarityView profile →

Shannen Mcnamara, PA-C

Physician Assistant · Frisco, CO

Shared published services
3 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)
  • X-ray of lower and sacral spine, minimum of 4 views (72110)
  • X-ray of shoulder, minimum of 2 views (73030)
27%Service-mix similarityView profile →

Kirsten Barrett Kuhn, P.A.

Physician Assistant · Frisco, CO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
22%Service-mix similarityView profile →

Jonathan Walker, PA

Physician Assistant · Frisco, CO

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)
  • X-ray of shoulder, minimum of 2 views (73030)
19%Service-mix similarityView profile →

Michael E Begg, PA

Physician Assistant · Frisco, CO

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)
15%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.