A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Alan T. Hirsch with clinicians in the same registry specialty: Clinical Psychologist (CMS).

IL · Exact areaEdit location

2024 published service data · 378 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Deirdre L. Tannen, PSY.D.

Clinical Psychologist (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
99%Service-mix similarityView profile →

Amy Siston, PH.D.

Clinical Psychologist (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
97%Service-mix similarityView profile →

Megan Elizabeth Mcmahon-Pietig, PH.D.

Clinical Psychologist (CMS) · Highland Park, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
94%Service-mix similarityView profile →

Michelle Cestaro, LCSW

Clinical Social Worker (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
93%Service-mix similarityView profile →

Sarah Thilges

Clinical Psychologist (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
93%Service-mix similarityView profile →

Russell Scott Mccormack, PSY.D

Specialty details in registry · Plainfield, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
93%Service-mix similarityView profile →

James Kelley Wyatt, PH.D.

Clinical Psychologist (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
92%Service-mix similarityView profile →

Valeria Nabolotny, PSY.D.

Clinical Psychologist (CMS) · Skokie, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
92%Service-mix similarityView profile →

Susan E. Schmidt

Clinical Psychologist (CMS) · Naperville, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
92%Service-mix similarityView profile →

Verne Noparstak, PSY.D.

Clinical Psychologist (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
91%Service-mix similarityView profile →

Melissa Ann Colon, PSYD

Clinical Psychologist (CMS) · Lake Zurich, IL

Shared published services
3 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
  • Psychotherapy, 30 minutes (90832)
91%Service-mix similarityView profile →

Carol Ellen Gordon, PSY.D.,CADC

Clinical Psychologist (CMS) · Arlington Heights, IL

Shared published services
2 shared services · view billing descriptions
  • Psychotherapy, 45 minutes (90834)
  • Psychotherapy, 1 hour (90837)
90%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.