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Compare the published Medicare service mix of Dorothy Nguyen, PSY.D. with clinicians in the same registry specialty: Clinical Psychologist (CMS).

NORTHRIDGE, CA · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 43 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Pietrzak, PSY.D.

Clinical Psychologist (CMS) · Topanga, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
100%Service-mix similarity~9.3 milesView profile →

Steve Kudler, PSY.D, FPPR

Clinical Psychologist (CMS) · Canoga Park, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
100%Service-mix similarity~4.4 milesView profile →

Josetta Rose Kovitch, PSY.D.

Clinical Psychologist (CMS) · Sherman Oaks, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
86%Service-mix similarity~7.0 milesView profile →

Elazar Tehrani, PSY.D

Specialty details in registry · Chatsworth, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
80%Service-mix similarity~3.7 milesView profile →

Allison Brown, PSYD

Specialty details in registry · Lake Balboa, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
77%Service-mix similarity~3.5 milesView profile →

John Joseph Carroll, PSY.D.

Clinical Psychologist (CMS) · Sherman Oaks, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
75%Service-mix similarity~5.8 milesView profile →

Mark Thomas Gmoser

Clinical Psychologist (CMS) · Panorama City, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
69%Service-mix similarity~5.1 milesView profile →

Aisha Shaikh, PSY.D

Clinical Psychologist (CMS) · Van Nuys, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
60%Service-mix similarity~5.8 milesView profile →

Fariba Sharifi, PSY.D

Clinical Psychologist (CMS) · Encino, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy, 30 minutes (90832)
31%Service-mix similarity~4.6 milesView 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 approximate distance 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.