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Lewis Kerwin, M.D.

Lewis Kerwin, M.D.

Adult Psychiatrist, Board Certified

Long Beach

✅   Accepting New Patients

💼   7 Years Experience

⭐   Highly Recommended

🕰️  Excellent Wait Time

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Getting to know Lewis Kerwin

Dr. Kerwin is a board-certified psychiatrist who takes a holistic approach to mental wellness, addressing not just symptoms but each patient's lifestyle, environment, and physiology. He specializes in treating depression, bipolar disorder, anxiety, trauma, and attention-related disorders for patients 10 and older. Dr. Kerwin is versed in CBT, motivational interviewing, and crisis management.


Dr. Kerwin attended Princeton University, Cornell University for medical school, and completed his psychiatry residency at the University of Washington, where he served as Chief Resident. Fluent in both English and Spanish, Dr. Kerwin is committed to providing culturally responsive care to a diverse patient population.

Focus Areas
  • Confidence Issues

  • Stress Management

  • Mood Swings

  • Self-Esteem Issues

  • Schizophrenia

  • Childhood Trauma


  • Panic Attacks

  • Bipolar Disorder

  • ADHD

  • Bereavement/Grief

  • PTSD


  • Childhood/ Adolescent Issues

  • Depression

  • Anxiety

  • Chronic Illness Adjustment

  • Chronic Pain




Clientele
  • Geriatric

  • LGBTQ+

  • Neurodivergent

  • Young Adults


  • Adolescents (13-17 years old)

  • Immigrants/ Refugees

  • People with chronic illness

  • Veterans

  • Adults

  • Spanish Speakers


Approaches

  • Consultation-Liaison Psychiatry: Provides psychiatric services to patients in other medical specialties

  • Psychodynamic Psychiatry: Utilizes psychoanalytic techniques to understand and treat mental disorders.

  • Emergency Psychiatry: Provides psychiatric care in emergency settings.

  • Sleep Medicine: Treats sleep disorders and their impact on mental health.

Identity

Gender


Male

Languages


English


Insurance Providers
  • UMR

  • PHCS MultiPlan

  • Medicare

  • Carelon Health

  • VHP

  • ComPsych

  • Kaiser Permanente

  • Aetna

  • Cigna


  • BlueCross BlueShield

  • Magellan Health

  • TriWest

  • MHN


5.0

I found Dr Kerwin through my insurance and I’m very grateful. He handled our appointment very well and helped me navigate the emotions that come with dealing with psychiatric medications.

FAQs


1. What is your approach to working with patients?

I consider my patients partners in the journey to reaching wellness. Together we identify goals, diagnose problems, and plan out a strategy. I use medication, lifestyle modification, and psychotherapy - depending on your values and goals - to help you reach lasting recovery.


2. How do you integrate medication management? 

Depending on the condition, medication can be pivotal in recovery either as a long term aid or a shorter-term catalyst for supporting healing. I am comfortable using the full spectrum of psychiatric meds as well as research-backed supplements. To avoid unnecessary side effects, I typically work with patients to find the minimum effective dose.


3. What kinds of clients do you work with best?

I work best with individuals who are curious about themselves and motivated to create change.


4. What do you enjoy doing outside of work?

Outside of work, I love meditating, working out, skiing, reading (fiction and non-fiction), business-management, and chess.

CPS

Comprehensive Psychiatric Services, a medical group was incorporated in 1979 to provide behavioral medicine services for individuals, and families

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