Justin O'Brien, MD

Justin O'Brien, MD

Psychiatrist

Education & Training

UT Southwestern Psychiatry Residency
Doctor of Medicine
University of North Texas
Biology | Bachelor of Arts
Dr. Justin O’Brien is a Board-Certified Psychiatrist who brings warmth, empathy, and a grounded, approachable presence to his work. He believes that healing begins with connection and that one of the most powerful tools in therapy is simply taking the time to talk and truly listen.

Originally from Texas, Dr. O’Brien’s journey into medicine was shaped by his time in the U.S. Army. During his eight years of service, he developed a deep appreciation for human resilience and the importance of mental well-being. It was during this time that he felt called to return to school to pursue a career in medicine, ultimately earning his medical degree and completing his residency in psychiatry at University of Texas Southwestern in Dallas, Texas. He also holds a bachelor’s degree in biology from the University of North Texas.

Clients often describe Dr. O’Brien as easygoing, thoughtful, and genuinely attentive. His approach is grounded in the belief that every person is unique, and that therapy should feel like a safe, supportive space to be heard without judgment. He sees himself as a partner in his clients’ mental health journey and reminds them often: “I’m here for you.”

Dr. O’Brien enjoys working with individuals across a broad range of concerns and tailors his approach based on what’s most helpful for each client. He understands that the therapeutic relationship itself can be transformative and works collaboratively with each person to explore challenges, identify patterns, and build practical strategies for change.
Outside of his clinical work, Dr. O’Brien enjoys diving into tech projects—particularly those that involve computers and 3D printing. He’s always eager to learn something new and often finds creativity and problem-solving in unexpected places.

Whether you're navigating something specific or just need someone to talk to, Dr. O’Brien’s calm presence and commitment to authentic connection can make all the difference.

Education & Training

UT Southwestern Psychiatry Residency
Biology | Bachelor of Arts
University of North Texas
Biology | Bachelor of Arts

What people are
saying about us

"I have never had such a wonderful caring dr. In my life. she is the best and I LOVE HER!!"

"I can tell she cares because she has detailed notes about my life, not just my medications."

"I feel I am being partned through this process by my Clinician. I sincerely appreciate that."

"I immediately felt a little better knowing i have someone to help me deal with me."

"I feel very safe with sharing my thoughts and feelings with my therapist without judgment."

"Thank you for the active listening, the care and compassion."

"I felt more like myself than I have felt in a long time. I think a light has been turned on."

"Making progress that is recognizable to me and those around me."

"Great practitioner! Not only did I feel she really listened to me, but she was able to give lots of education and information about medications."

"Happier Living provides excellent services to consumers with mental health needs. Thank you."

"Progress is visible. Wonderfully paying off for all the investment we've done so far. Looking forward to keeping this up. Thank you."

"Excellent quality of care and advocacy of my overall life wellness."