Dr. John Dettwyler, PHD
New Patients

Dr. John Dettwyler, PHD


Psychology | Male

614 Loveville Rd Ste F1A Hockessin, DE 19707 Get Directions


Dr. John Dettwyler, PHD is a psychology provider who practices in Hockessin, DE. He is 64 years old.

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Dr. Dettwyler's Experience


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Background Check

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Languages Spoken

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Dr. Dettwyler accepts 24 insurance carriers

Dr. Dettwyler's Reviews

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Dr. Dettwyler's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
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Dr. Dettwyler's experience matches your search based on the following criteria:

  •  Specializes in Psychology
  •  Malpractice claims in Delaware not available
  •  No sanctions found
  •  No board actions found

Background Check

  • n/a
    Malpractice Claims not available

    Healthgrades does not collect malpractice information for Delaware.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Conditions Treated

  • Anxiety
  • Attention Deficit Disorder (ADD)
  • Behavioral Disorders
  • Bipolar Disorder
  • Depression
  • Grief
  • Obsessive-Compulsive Disorder (OCD)
  • Panic Attack
  • Post-Traumatic Stress Disorder (PTSD)
  • Relationship Issues
  • Separation Anxiety
  • Stress


  • Undergraduate School
    Clemson University

    Graduated in 1974

  • Other Education
    Temple University

    Completed in 1987

Languages Spoken

  • English

Memberships &
Professional Affiliations

Dr. Dettwyler does not have any memberships or affiliations listed. If you are Dr. Dettwyler and would like to add memberships or affiliations, please update your free profile.


  • Psychology
  • Adolescent Psychology
  • Child Psychology
  • Marriage & Family Therapy

Procedures Performed

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