Dr. Ralph J. Koek
- Gender: Male
- Sole propriator: No
- NPI: 1356428924
Dr. Ralph J. Koek M.D.
Psychiatrist
He is located at 26585 West Agoura Boulevard Ste 330 in Calabasas, CA 91301. Can help patients with the following: Amnesia, Avoidant Personality Disorder, Dissociative Fugue, Hypersomnia, Panic Disorder, Pervasive Developmental Disorders (PDD). His National Provider Identifier (NPI) number is 1356428924. Appointment can be made via the phone number (818) 876-1050.
Conditions treated
Dr. Ralph Jan Koek, being an psychiatrist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Ralph J. Koek.
- Amnesia
- Anorexia Nervosa
- Antisocial Personality Disorder (ASPD)
- Anxiety
- Aphasia
- Asperger Syndrome (AS)
- Attention-Deficit/Hyperactivity Disorder (ADHD)
- Autism
- Avoidant Personality Disorder
- Binge Eating Disorder
- Bipolar Disorder
- Body Dysmorphic Disorder (BDD)
- Borderline Personality Disorder (BPD)
- Bulimia Nervosa
- Dementia
- Depression
- Dissociative Fugue
- Dissociative Identity Disorder
- Drug Abuse
- Eating Disorder
- Fragile X Syndrome (FXS)
- Grief
- Hypersomnia
- Insomnia
- Isolation
- Learning Disability
- Mental Illness
- Mood Disorders
- Munchausen Syndrome
- Narcissistic Personality Disorder (NPD)
- Obsessive Compulsive Disorder (OCD)
- Online Therapy
- Panic Disorder
- Persistent Depressive Disorder
- Pervasive Developmental Disorders (PDD)
- Phobias
- Postpartum Depression (PPD)
- Posttraumatic Stress Disorder (PTSD)
- Premenstrual Dysphoric Disorder (PMDD)
- Psychotic Disorder
- Rape and Sexual Assault
- Relationship Issues
- Schizoaffective Disorder
- Schizophrenia
- Seasonal Affective Disorder (SAD)
- Sleepwalking
- Speech Disorders
- Stress
- Tardive Dyskinesia
- Tics
- Trauma
- Wilson-Turner Syndrome
Medicare Enrollment
Dr. Ralph J. Koek is enrolled to bill Medicare as a Practitioner - Psychiatry .
Bills through: Uc Regents
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
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Questions & Answers
What conditions does Dr. Ralph Jan Koek treat?
Dr. Ralph Jan Koek provides treatment for Amnesia, Avoidant Personality Disorder, Dissociative Fugue, Hypersomnia, Panic Disorder, Pervasive Developmental Disorders (PDD). For the full list see this list.
Does Dr. Ralph Jan Koek accept insurance?
Unfortunately we don't have any information if Dr. Ralph Jan Koek accepts insurance.
Where can you meet with Dr. Ralph Jan Koek?
Dr. Ralph Jan Koek's office is located at 26585 West Agoura Boulevard Ste 330 in Calabasas, CA 91301.