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Compare the published Medicare service mix of Gregory Alan Van Dam, PSY.D. with clinicians in the same registry specialty: Clinical Psychologist (CMS).

FL · Exact areaEdit location

2024 published service data · 407 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Stanley Curtis Takagishi, PH.D.

Clinical Psychologist (CMS) · Tampa, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
100%Service-mix similarityView profile →

Robert Randolph Butts, PSY.D.

Clinical Psychologist (CMS) · St Petersburg, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
100%Service-mix similarityView profile →

Theodore Peter Masino, PSY. D.

Clinical Psychologist (CMS) · Niceville, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
99%Service-mix similarityView profile →

Melissa Ann Bailey-Arizpe, PSYD

Clinical Psychologist (CMS) · Clearwater, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
89%Service-mix similarityView profile →

Jonathan D Cohen, PH.D.

Clinical Psychologist (CMS) · Lake City, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, first hour (96130)
  • Psychiatric diagnostic evaluation (90791)
87%Service-mix similarityView profile →

Brent Decker, PH.D.

Clinical Psychologist (CMS) · Panama City, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
83%Service-mix similarityView profile →

Stefanie Paliatsos, PH.D.

Clinical Psychologist (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
  • Psychiatric diagnostic evaluation (90791)
76%Service-mix similarityView profile →

Leslie Michelle Diaz-Ortiz, PH.D.

Clinical Psychologist (CMS) · Sunrise, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Evaluation of psychological test, each additional hour (96131)
  • Evaluation of psychological test, first hour (96130)
75%Service-mix similarityView profile →

Mohamed S Khan

Clinical Psychologist (CMS) · Ocala, FL

Shared published services
3 shared services · view billing descriptions
  • Evaluation of psychological test, first hour (96130)
  • Psychiatric diagnostic evaluation (90791)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
71%Service-mix similarityView profile →

Herbert Ginart, PSY.D

Clinical Psychologist (CMS) · Miami, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Psychiatric diagnostic evaluation (90791)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
60%Service-mix similarityView profile →

Lianne Acosta- Ginart, PSYD

Clinical Psychologist (CMS) · Miami, FL

Shared published services
3 shared services · view billing descriptions
  • Administration of psychological or neuropsychological test, each additional 30 minutes (96137)
  • Psychiatric diagnostic evaluation (90791)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
60%Service-mix similarityView profile →

Daniel J Henderson, PH.D.

Clinical Psychologist (CMS) · Ocala, FL

Shared published services
3 shared services · view billing descriptions
  • Evaluation of psychological test, first hour (96130)
  • Psychiatric diagnostic evaluation (90791)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
59%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.