HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Jeffrey David Gary, PHD with clinicians in the same registry specialty: Psychologist.

MD · Exact areaEdit location

2024 published service data · 90 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mary R Speth, PH.D

Psychologist · Towson, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
98%Service-mix similarityView profile →

Kevin Richard Lawlor

Psychologist · Frederick, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
96%Service-mix similarityView profile →

Monica Petroski, PSY.D.

Psychologist · Columbia, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
95%Service-mix similarityView profile →

Gina Wertalik Basey, PSY.D.

Psychologist · Lutherville, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
93%Service-mix similarityView profile →

Francis H Schindler, PH.D

Psychologist · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
91%Service-mix similarityView profile →

Alfred J. Hillwig, PSY.D.

Psychologist · Phoenix, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
86%Service-mix similarityView profile →

Laura Ann Mulhall, PSY. D

Psychologist · Towson, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Evaluation of neuropsychological test, first hour (96132)
  • Administration of psychological or neuropsychological test, first 30 minutes (96136)
85%Service-mix similarityView profile →

Loren Connolly, PHD

Psychologist · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 45 minutes (90834)
78%Service-mix similarityView profile →

Patricia Robison, PH.D.

Psychologist · Cumberland, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 45 minutes (90834)
70%Service-mix similarityView profile →

Deepan Chatterjee, PHD

Psychologist · Silver Spring, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 45 minutes (90834)
70%Service-mix similarityView profile →

Raymond Donald Mosko, PHD

Psychologist · Arnold, MD

Shared published services
3 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation (90791)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 45 minutes (90834)
69%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.