Dr. Matthew J. Niedzwiecki
Dr. Matthew J. Niedzwiecki
Last updated: Jan 12, 2026

Dr. Matthew J. Niedzwiecki

  • Gender: Male
  • Experience: 12 years
  • Graduation year: 2009
  • Sole propriator: Yes
  • NPI: 1174859284

Dr. Matthew J. Niedzwiecki MD

Psychiatrist

He is located at 11332 Mountain View Avenue Suite C in Loma Linda, CA 92354. Can help patients with the following: Antisocial Personality Disorder (ASPD), Aphasia, Depression, Dissociative Identity Disorder, Obsessive Compulsive Disorder (OCD), Schizoaffective Disorder. His National Provider Identifier (NPI) number is 1174859284. Appointment can be made via the phone number (401) 390-6297.

Conditions treated

Dr. Matthew J. Niedzwiecki, 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. Matthew J. Niedzwiecki.

  • 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

Procedures Performed by Dr. Matthew J. Niedzwiecki

Medicare Enrollment

Dr. Matthew J. Niedzwiecki is enrolled to bill Medicare as a Practitioner - Psychiatry .

Bills through: Multicare Health System

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.

Payments received

Drug payment

Otsuka Pharmaceutical $125

Other

Food and Beverage $125

Studies

Graduated in 2009

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Dr. George W. Christison
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Questions & Answers

Where can you meet with Dr. Matthew J. Niedzwiecki?

Dr. Matthew J. Niedzwiecki's office is located at 11332 Mountain View Avenue Suite C in Loma Linda, CA 92354.

What conditions does Dr. Matthew J. Niedzwiecki treat?

Dr. Matthew J. Niedzwiecki provides treatment for Antisocial Personality Disorder (ASPD), Aphasia, Depression, Dissociative Identity Disorder, Obsessive Compulsive Disorder (OCD), Schizoaffective Disorder. For the full list see this list.