Individual provider · Type 1 NPI

Thomas R. Sak, PSYD

Clinical Neuropsychologist · Algonquin, IL

NPI number 1073090239 Active

Practice location

1451 Merchant Dr
Algonquin, IL 60102-5917

Call (847) 469-7537 Map

Fax (847) 469-7540

Other practice locations

  • 3701 Commercial Ave Ste 9, Northbrook, IL 60062-1830 · (847) 469-7537
  • 1531 S Grove Ave Unit 105, Barrington, IL 60010-5250 · (847) 469-7537
  • 2604 Dempster St Ste 407B, Park Ridge, IL 60068-8428 · (847) 469-7537
  • 2551 N Clark St Ste 200, Chicago, IL 60614-1798 · (847) 469-7537
  • 636 Church St Ste 419, Evanston, IL 60201-4580 · (847) 469-7537
  • 2300 N Barrington Rd Ste 105, Hoffman Estates, IL 60169-2033 · (847) 469-7537
  • 17W662 Butterfield Rd Ste 302, Oakbrook Terrace, IL 60181-4006 · (847) 469-7537

Specialties and licenses

TaxonomyCodeLicense
Psychologist 103T00000XNone listed
Clinical Neuropsychologist Primary 103G00000XNone listed

Clinical Neuropsychologist: A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

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About NPI 1073090239

Thomas R. Sak, PSYD's National Provider Identifier is 1073090239, issued on Jul 20, 2018. The primary taxonomy on file is Clinical Neuropsychologist (103G00000X), and the practice location is in Algonquin, IL. The record was last updated on Sep 21, 2026.