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Compare the published Medicare service mix of Sara Ann Shaffer, ARNP, PMHNP-BC with clinicians in the same registry specialty: Nurse Practitioner (CMS).

IA · Exact areaEdit location

2024 published service data · 201 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Courtney Mckinley

Nurse Practitioner (CMS) · Cedar Falls, IA

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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
100%Service-mix similarityView profile →

Cynthia Ann Coenen, ARNP/PMHNP-BC

Nurse Practitioner (CMS) · Des Moines, IA

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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
  • Psychiatric diagnostic evaluation with medical services (90792)
88%Service-mix similarityView profile →

Jessica Lynn Chiodo, ARNP

Nurse Practitioner (CMS) · Johnston, IA

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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
80%Service-mix similarityView profile →

Beth Frettim, PMHNP-BC

Nurse Practitioner (CMS) · Johnston, IA

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)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Psychiatric diagnostic evaluation with medical services (90792)
78%Service-mix similarityView profile →

Evans Komen, DNP,PMHNP-BC

Nurse Practitioner (CMS) · Waterloo, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Julia Christine Sass, ARNP, PMHNP-BC

Nurse Practitioner (CMS) · Davenport, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Angela Lynn Kieffer, PMHNP

Nurse Practitioner (CMS) · Cedar Rapids, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Angela J Veenstra, ARNP

Nurse Practitioner (CMS) · West Des Moines, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Shyrl Ann Hoag, APN

Nurse Practitioner (CMS) · Ankeny, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Shawn Thomas Plunkett, ARNP

Nurse Practitioner (CMS) · Waterloo, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Lauren Gray, PA-C

Physician Assistant (CMS) · Ames, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%Service-mix similarityView profile →

Erin L Fox-Hammel, DNP ARNP FNP-C PMHNP

Nurse Practitioner (CMS) · Johnston, IA

Shared published services
2 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)
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
77%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.