Dr. Maria Lourdes Castineira Garcia
Meet Dr. Maria Lourdes Castineira Garcia
Experienced Psychiatrist and Addiction Specialist in Silver Spring, MD
Title: Psychiatrist & Addiction Psychiatrist
Credentials: Doctor of Medicine (MD); Board Certified in Adult Psychiatry (ABPN); Board Certified in Addiction Psychiatry (ABPN)
Languages: English and Spanish
Experience: 30+ Years in Mental Health Care
Location: Silver Spring, MD
Hours: Wednesdays, 8:00 AM – 7:00 PM
Dr. Maria Lourdes Castineira Garcia is a board-certified psychiatrist with more than 35 years of experience in mental health care. She is board certified in Adult Psychiatry and Addiction Psychiatry by the American Board of Psychiatry and Neurology (ABPN).
Dr. Castineira completed her Fellowship in Addiction Psychiatry at the University of Maryland School of Medicine and brings extensive expertise in the treatment of mood disorders, anxiety disorders, psychotic disorders, and substance use disorders. Her background in epidemiology further strengthens her comprehensive, evidence-based approach to psychiatric care.
She provides thorough psychiatric evaluations and individualized medication management, carefully monitoring treatment effectiveness and safety. Dr. Castineira works collaboratively with her patients to develop personalized treatment plans that support long-term stability, recovery, and improved quality of life.
Areas of Specialization
Dr. Maria Lourdes Castineira Garcia provides comprehensive psychiatric care for adults across a wide spectrum of mental health conditions, including:
Anxiety Disorders
Evidence-based treatment for generalized anxiety disorder, panic disorder, social anxiety disorder, and obsessive-compulsive disorder (OCD).
Depression
Comprehensive evaluation and treatment of major depressive disorder, persistent depressive disorder, treatment-resistant depression, and seasonal affective disorder.
Bipolar Disorder
Specialized management of Bipolar I and Bipolar II disorder with careful mood stabilization and long-term treatment planning.
Schizophrenia and Psychotic Disorders
Treatment of schizophrenia, schizoaffective disorder, and other psychotic disorders with individualized medication management and close clinical monitoring.
Substance Use & Addiction Psychiatry
Fellowship-trained expertise in the treatment of alcohol use disorder, opioid use disorder, and other substance use disorders. Integrated treatment approaches support both psychiatric stability and recovery.
Additional Conditions:
- Sleep disturbances and insomnia related to mental health
- Stress management and adjustment disorders
- Mood disorders
- ADHD
- Trauma-related conditions
Collaborative and Patient-Centered Psychiatric Care
Dr. Castineira’s approach to psychiatric care is grounded in clinical expertise, thoughtful collaboration, and individualized treatment planning. She believes effective mental health treatment is a partnership built on trust, transparency, and shared decision-making.
Partnership-Based Treatment
Dr. Castineira works collaboratively with her patients to develop treatment plans that reflect their goals, medical history, and life circumstances. Care is structured yet personalized, with a focus on long-term stability and functional improvement.
Active Listening & Clinical Insight
Every evaluation begins with attentive listening and a thorough psychiatric assessment. Dr. Castineira prioritizes understanding each patient’s symptoms, concerns, and treatment history to ensure accurate diagnosis and appropriate care.
Individualized Medication Management
Treatment plans are carefully tailored to each individual. Medication strategies are selected based on evidence-based guidelines, clinical presentation, and patient preferences, with close monitoring for safety and effectiveness.
Education and Shared Decision-Making
Dr. Castineira takes time to explain diagnoses, treatment options, and potential outcomes clearly. She believes informed patients are empowered patients, and encourages active participation in care decisions.
Comprehensive Psychiatric Care
Whether addressing mood disorders, anxiety, psychotic disorders, or substance use conditions, Dr. Castineira provides structured, compassionate care focused on symptom stabilization, recovery, and improved quality of life.
Comprehensive Psychiatric Services
Dr. Castineira provides a full range of adult psychiatric services, including:
Comprehensive psychiatric evaluations and assessments
Medication management and psychopharmacology
Addiction Psychiatry and Substance Use Treatment
Treatment of Anxiety, Depression, and Mood Disorders
Management of Bipolar Disorder
Treatment of Psychotic Disorders and Schizoaffective Conditions
Medication Adjustments and Optimization
Sleep Disorder Evaluation and Treatment
Telehealth and in-person appointments
Why Patients Choose Dr. Diop
- Board-certified in Adult Psychiatry and Addiction Psychiatry (ABPN)
- Fellowship Trained in Addiction Psychiatry (University of Maryland School of Medicine)
- 30+ years of clinical experience in mental health care
- Expertise in mood disorders, psychotic disorders, and substance use conditions
- Evidence-based medication management and psychopharmacology
- Thoughtful, structured, and collaborative treatment approach
- Flexible options including telehealth and in-person appointments
- Extended Hours Wednesday (8:00 AM – 7:00 PM)
Schedule with Dr. Castineira
Dr. Castineira is currently accepting new patients in Silver Spring, MD and offers extended Wednesday hours from 8:00 AM to 7:00 PM to accommodate working professionals and individuals with busy schedules.
To schedule an appointment with Dr. Castineira
Availability:
Wednesday, 8:00 AM – 7:00 PM
Same-day appointments available for urgent psychiatric needs
Insurance: Most major insurance plans accepted.