Joy Ann Valko, PSYD
Clinical Psychologist (CMS) · Crystal Lake, IL
Shared published services3 shared services · view billing descriptions
100%Service-mix similarity~8.3 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Zachary J Sikora, PSY.D. with clinicians in the same registry specialty: Clinical Psychologist (CMS).
HUNTLEY, IL · 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 · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Susan M. Olesch, PSYD
Clinical Psychologist (CMS) · Lake In The Hills, IL
Shared published services3 shared services · view billing descriptions
98%Service-mix similarity~5.0 milesView profile →
Mazhar Khan, PSYD
Clinical Psychologist (CMS) · Algonquin, IL
Shared published services2 shared services · view billing descriptions
82%Service-mix similarity~6.2 milesView profile →
Michael Dunn Gara, PSY.D.
Clinical Psychologist (CMS) · Algonquin, IL
Shared published services2 shared services · view billing descriptions
82%Service-mix similarity~6.2 milesView profile →
Vicki Arnold Santos, PSY.D.
Specialty details in registry · Crystal Lake, IL
Shared published services3 shared services · view billing descriptions
80%Service-mix similarity~8.3 milesView profile →
Timothy J Hayes, PSY.D.
Clinical Psychologist (CMS) · Crystal Lake, IL
Shared published services1 shared services · view billing descriptions
73%Service-mix similarity~6.2 milesView profile →
Julie Mcfail Weingarz, PSY.D.
Clinical Psychologist (CMS) · Algonquin, IL
Shared published services1 shared services · view billing descriptions
73%Service-mix similarity~6.2 milesView profile →
Benjamin Michael Gesing, PSYD
Clinical Psychologist (CMS) · West Dundee, IL
Shared published services1 shared services · view billing descriptions
73%Service-mix similarity~8.9 milesView profile →
Laura Strong, PSYD
Clinical Psychologist (CMS) · Crystal Lake, IL
Shared published services1 shared services · view billing descriptions
73%Service-mix similarity~8.3 milesView profile →
Darrell Lee Nicks, PSY.D.
Clinical Psychologist (CMS) · Cary, IL
Shared published services1 shared services · view billing descriptions
73%Service-mix similarity~9.9 milesView profile →
James Dennis Mctague, PSY.D.
Clinical Psychologist (CMS) · Cary, IL
Shared published services1 shared services · view billing descriptions
57%Service-mix similarity~9.9 milesView profile →
Glenn B Gelman, PSY.D.
Clinical Psychologist (CMS) · Crystal Lake, IL
Shared published services1 shared services · view billing descriptions
57%Service-mix similarity~6.2 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.