31 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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  1. Qualifications
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Specialties & Research

Dr. John Sadler, MD is board certified in Psychiatry.

  • He has special expertise in 8 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Mental Disorders
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Sadler graduated from Indiana University , Indianapolis. He has 1 awards.

One of America's Leading Experts on:
Mental Disorders


Dr. Sadler has 1 hospital affiliations:

  • Parkland Health & Hospital System 

> > > > Dr. John Sadler, MD

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Additional Information
Dr. John Zell Sadler MD is a male Psychiatrist, has 31 years of experience and practices in Psychiatry.
Where does Dr. John Z. Sadler practice?
Dr. John Sadler has 4 office locations.
Dr. John Sadler practices Psychiatry near Dallas, TX.
See Dallas Psychiatrists.