Medical Credentials
MD (Doctor of Medicine) with board-certified psychiatric practice.
About Dr. Deirmenjian
Senior psychiatric expertise with practical, evidence-based treatment planning
Dr. John Mgrditch Deirmenjian is a board-certified psychiatrist practicing in Glendale and the greater Los Angeles area. He is known for treating mood disorders, anxiety disorders, attention-related conditions, and treatment-resistant depression.
Dr. Deirmenjian completed medical training and advanced professional development in the United States, with affiliations connected to the University of California, Los Angeles (UCLA).
Dr. Deirmenjian is associated with Premier TMS Centers, where treatment options for depression and related psychiatric conditions are offered. His practice is generally described as combining medication management with modern evidence-based psychiatric approaches.
He is regarded as an experienced senior psychiatrist focused on adult patients seeking psychiatric evaluation and medication-based treatment for depression, anxiety, and related conditions.
Board-Certified Psychiatrist | Glendale and Greater Los Angeles
Experienced Psychiatric Care for Mood, Anxiety, and Treatment-Resistant Depression
Dr. John Mgrditch Deirmenjian, MD provides adult psychiatric care across decades of clinical practice, combining medication management with modern evidence-based approaches, including TMS.
- Board-Certified Psychiatrist
- Long-Standing Clinical Career
- Medication Management and TMS Focus
- Glendale, Pasadena, Los Angeles
Professional Credentials
Credentials, licensure, and treatment affiliations
Licensure and Registry
Licensed physician in California. NPI: 1821009812.
Affiliations and Advanced Care
Associated with Premier TMS Centers and publicly listed with UCLA-connected academic or teaching affiliations.
Services
Focused adult psychiatric services across key diagnostic areas
Psychiatric Evaluation
Comprehensive evaluations to define diagnosis and establish treatment direction.
Medication Management
Ongoing medication planning and adjustment aligned with symptom response and goals.
Depression Treatment
Evidence-based treatment planning for depressive symptoms and functional recovery.
Anxiety and Stress Care
Targeted psychiatric care for anxiety disorders and persistent stress symptoms.
ADHD and Concentration Difficulties
Assessment and treatment support for attention-related and concentration concerns.
Bipolar-Spectrum Conditions
Medication-focused care and longitudinal monitoring for bipolar-spectrum presentations.
Treatment-Resistant Depression
Advanced treatment planning for patients with incomplete response to standard care.
TMS Therapy
Evaluation for Transcranial Magnetic Stimulation (TMS) as an option in selected cases.
Patient Reviews
“Dr. Deirmenjian takes time to listen carefully and explains treatment options clearly. His calm, respectful approach helped me feel comfortable during care.”
- A.M.
“Appointments are thoughtful and focused. I appreciated having a clear plan and regular follow-up for my treatment.”
- R.K.
“I felt heard and treated with dignity. Communication was professional, and each visit felt organized and supportive.”
- S.T.
“Dr. Deirmenjian created a confidential environment where I could discuss concerns openly and move forward with practical treatment steps.”
- M.L.
Contact
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- Location:333 W Broadway Ste 201, Long Beach CA, 90802
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