A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Marina Wischnack, PHD with clinicians in the same registry specialty: Psychologist.

CA · Exact areaEdit location

2024 published service data · 335 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Marc A Norman, PHD

Psychologist · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test by technician, each additional 30 minutes (96139)
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
94%Service-mix similarityView profile →

Michael Jay Ryan, M.S.

Psychologist · Vacaville, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test by technician, each additional 30 minutes (96139)
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
91%Service-mix similarityView profile →

Peter M. Bradlee, PH.D.

Psychologist · Vacaville, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test by technician, each additional 30 minutes (96139)
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
87%Service-mix similarityView profile →

Eric Joseph Freitag, PHD

Psychologist · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test by technician, each additional 30 minutes (96139)
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
86%Service-mix similarityView profile →

Jeannie Won Chang, PSY.D.

Psychologist · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
63%Service-mix similarityView profile →

Dorothy Weiss, PHD

Psychologist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
  • Exam of neurobehavioral status, first hour (96116)
62%Service-mix similarityView profile →

Sandra Klein, PH.D.

Psychologist · Newport Beach, CA

Shared published services
2 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
51%Service-mix similarityView profile →

Jillian Tessier, PHD

Psychologist · Mill Valley, CA

Shared published services
3 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
50%Service-mix similarityView profile →

Katherine Elizabeth Beckwith, PHD

Psychologist · Redwood City, CA

Shared published services
3 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
49%Service-mix similarityView profile →

Terrance W Dushenko, PHD

Psychologist · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
  • Exam of neurobehavioral status, first hour (96116)
41%Service-mix similarityView profile →

Chin He Bae, PSY.D.

Psychologist · Pasadena, CA

Shared published services
3 shared services · view billing descriptions
  • Evaluation of neuropsychological test, each additional hour (96133)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
40%Service-mix similarityView profile →

Joshua P Vanderschaaf, PSYD

Psychologist · San Mateo, CA

Shared published services
1 shared services · view billing descriptions
  • Exam of neurobehavioral status, first hour (96116)
25%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.