Individual provider · Type 1 NPI

Michael Andrew Williston, PSY.D.

Psychologist · Wilmington, DE

NPI number 1093090474 Active

Practice location

4000 Nexus Dr Ste NE3-100
Wilmington, DE 19803-3000

Call (302) 320-9771 Map

Fax (302) 623-7964

Mailing address

112 N Broad St
Philadelphia, PA 19102-1512

Other practice locations

  • 112 N Broad St, Philadelphia, PA 19102-1512 · (215) 568-0860

Specialties and licenses

TaxonomyCodeLicense
Psychologist Primary 103T00000XB1-0011487 (DE)
Psychologist 103T00000XPS017269 (PA)

Psychologist: A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustmen…

4 other providers at this address

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About NPI 1093090474

Michael Andrew Williston, PSY.D.'s National Provider Identifier is 1093090474, issued on Oct 17, 2011. The primary taxonomy on file is Psychologist (103T00000X), and the practice location is in Wilmington, DE. The record was last updated on Jan 13, 2025.