PO Box 533, Shrub Oak, NY 10588

Phone: 845-282-3367

Gregory I. Mack, Ph.D. :

Clinical, Police, & Forensic Psychological Services PLLC


If you are experiencing psychological symptoms including issues related to stress, anger, depression, and relationship problems call me so that we can arrange a confidential session to evaluate the problem and discuss treatment options. Donít wait until your job is affected or your relationship is in jeopardy! For information regarding clinical fees click here

  • Individual Psychotherapy

  • Couples & Family Psychotherapy

  • Group Psychotherapy



One of the most important concerns police & public safety administrators have is whether or not their personnel are psychologically healthy and fit for duty. Selecting the right doctor to perform these evaluations can prove to be a difficult and confusing process. Based on two decades of law enforcement experience, my practice provides objective evaluations for Public Safety Agencies. My practice adheres to the guidelines established by the American Psychological Association and the Psychological Services Section of the International Association of Chiefs of Police. For information regarding Public Safety fees click here.

  • Pre-employment Evaluations

  • Fitness for Duty Evaluations

  • Critical Incident Stress Debriefings

  • Psychological Testing



I provide forensic consultancy services and evaluations and have provided expert witness testimony in a variety of forensic venues for over two decades. I am available to provide telephone consultation, records and transcript review, courtroom testimony, in-court consultation, and forensic evaluation. For information regarding forensic fees click here.

  • Personal injury litigation review and analysis of medical records

  • Mental impairment/diminished capacity assessment

  • Criminal behavior affected by mental and emotional disability

  • Dangerousness, malingering, criminality assessment

  • Fitness for Duty Evaluation
  • Work-related Injuries Critical Incident Stress Debriefings







GREGORY I. MACK, PH.D.:CLINICAL, POLICE, & FORENSIC PSYCHOLOGICAL SERVICES PLLC is a Professional Limited Liability Company registered with the New York State Department of State. 

National Provider Identifier available @ HIPAAspace site

Mailing Address: PO Box 533, Shrub Oak, NY 10588

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