Dr. John Ernzen
- Gender: Male
- Sole propriator: No
- NPI: 1346615663
Dr. John Ernzen
Psychiatrist
He is located at 225 East Chicago Avenue in Chicago, IL 60611. Can help patients with the following: Anorexia Nervosa, Bipolar Disorder, Hypersomnia, Rape and Sexual Assault, Schizophrenia, Sleepwalking. His National Provider Identifier (NPI) number is 1346615663. Appointment can be made via the phone number (312) 227-4000. He is affiliated with 1 practices.
Conditions treated
Dr. John Ernzen, 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. John Ernzen.
- 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. John Ernzen is enrolled to bill Medicare as a Practitioner - Psychiatry .
Bills through: Endeavor Health Medical Group
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Additional Specialities
- Resident
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Questions & Answers
Does Dr. John Ernzen have affiliation with practices?
Dr. John Ernzen is affiliated with NU Feinberg School of Medicine.
What conditions does Dr. John Ernzen treat?
Dr. John Ernzen provides treatment for Anorexia Nervosa, Bipolar Disorder, Hypersomnia, Rape and Sexual Assault, Schizophrenia, Sleepwalking. For the full list see this list.
Does Dr. John Ernzen accept insurance?
Unfortunately we don't have any information if Dr. John Ernzen accepts insurance.
Where can you meet with Dr. John Ernzen?
Dr. John Ernzen's office is located at 225 East Chicago Avenue in Chicago, IL 60611.