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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).

Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Ronald Warnell is Good. Dr. Warnell has been reviewed by 3 patients who have provided 0 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0

Specialties & Research

Dr. Ronald Warnell, MD is board certified in Psychiatry.

  • He has special expertise in 7 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Warnell graduated from Loma Linda University.


Dr. Warnell has 3 hospital affiliations:

  • Loma Linda University Medical Center 
  • Loma Linda University Behavioral Medicine Center 
  • Loma Linda University Community Medical Center 


  • English

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Additional Information
Dr. Ronald Lee Warnell MD is a male Psychiatrist, has 39 years of experience and practices in Psychiatry.
Where does Dr. Ronald L. Warnell practice?
Dr. Ronald Warnell has 2 office locations.
Dr. Ronald Warnell practices Psychiatry near Redlands, CA.
See Redlands Psychiatrists.