George Han, MD

Dr. Mark Varela is a board-certified psychiatrist joining Talkiatry directly out of residency. He focuses primarily on medication management, often accompanied by brief cognitive, motivational, or supportive therapy. He may request that you also meet with a therapist regularly for your benefit. Dr. Varela received his medical degree and general psychiatric residency training both from Texas Tech University Health Sciences Center in West Texas. He treats young adults and adults with a wide variety of mental health concerns, including ADHD, mood disorders, anxiety, OCD, and PTSD.

Roel Sepulveda is a board-certified psychiatric mental health nurse practitioner (PMHNP-BC) with a Master of Science in Nursing from the University of Alabama at Birmingham. Certified by the American Nurses Credentialing Center (ANCC), he has over 10 years of experience providing mental health care in psychiatric emergency rooms, outpatient psychiatry, and telehealth settings. Roel is committed to delivering comprehensive and accessible care that supports patients across diverse needs and backgrounds.

As a provider, Roel values creating a compassionate and collaborative environment where patients feel comfortable sharing their experiences. He takes a patient-centered approach, meeting individuals where they are and working together to identify treatment goals. Patients can expect a nonjudgmental space where their concerns are heard, respected, and addressed with empathy and understanding.

When working with patients, Roel begins by taking time to understand their history, symptoms, and current challenges. He develops individualized treatment plans that may include a combination of medication management, lifestyle strategies, and coordination with therapy or other supports. His goal is to provide evidence-based care while empowering patients to actively participate in their mental health journey and achieve lasting well-being.

Dr. Sabrina Lefcochilos-Fogelquist earned her bachelor’s degree from Georgetown University and her medical degree from Sidney Kimmel Medical College at Thomas Jefferson University. She completed her psychiatry residency at the Icahn School of Medicine at Mount Sinai Morningside/West in New York City. She has experience in outpatient, inpatient, and emergency psychiatry, treating a broad spectrum of mental health conditions across diverse populations.

Dr. Lefcochilos-Fogelquist values compassionate, holistic care and strives to build long-term, collaborative relationships with her patients. She is particularly drawn to the outpatient setting, where she can engage with the evolving narratives of her patients’ lives. She creates a warm, supportive environment where individuals feel safe, respected, and heard.

Her process begins with a comprehensive evaluation to understand each patient’s history, concerns, and goals. Treatment plans are individualized and may include medication management and psychotherapy. She integrates supportive, cognitive behavioral, psychodynamic, and mindfulness-based techniques to meet patients' evolving needs.

Dr. Lanier Summerall attended Yale University, where she studied philosophy in the Great Books Program. She later studied Molecular Biology at the University of Colorado, where she and her husband moved after getting married. She received her medical degree from the University of Colorado Health Sciences Program, and completed her residency at Dartmouth Medical School. She also trained at Massachusetts General Hospital with Dr. Theodore Stern in his area of expertise (Consult Psychiatry) and learned from his immense skill at building strong rapport with all patients.

Dr. Summerall has experience in inpatient, and outpatient settings, along with teaching and research. She has worked in hospital administration, government entities, most importantly the Senate Veterans’ Affairs Committee.

Dr. Summerall values transparent communication and will work with you to create the change. She treats patients as unique individuals and treatment is put into place with individualized plans in mind. Her approach to patients, which emphasizes holistic, patient centered, strength based treatment built on a foundation of strong doctor-patient alliance and evidence based medical knowledge.

Your appointment with Dr. Summerall will be a conversation. She is there to work towards goals together and is a good translator of "medical-ese". She enjoys working with patients on all aspects of their health and caters treatment plans to you.

Dr. Lundgren is a board-eligible adult psychiatrist who completed his residency at the University of Rochester. During his final year, he served as Chief Resident in both inpatient and emergency psychiatry, demonstrating leadership and clinical excellence in high-acuity settings.

Before beginning his medical journey, Dr. Lundgren earned a degree in philosophy from the University of Georgia. He went on to serve as a police officer and investigator near Atlanta, Georgia, for six years. These formative experiences gave him unique insight into the complex relationship between mental health and personal well-being, safety, and fulfillment. Motivated by this perspective, he pursued a degree in neuroscience at Columbia University, graduating with honors, before attending medical school.

Dr. Lundgren brings experience across outpatient, inpatient, and emergency psychiatric care. He emphasizes a strong therapeutic alliance, supportive psychotherapy, and evidence-based treatment. He is committed to understanding people within the context of their experiences and circumstances, recognizing how these factors may contribute to their mental health concerns and strengths.

Dr. Lundgren provides comprehensive psychiatric medication management and cares for individuals experiencing depression, anxiety, trauma-related disorders, and other mental health conditions. When beneficial, he may also recommend collaborating with a therapist to support a more holistic and effective treatment plan.

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Dr. Stuart Hedgpeth is a board-certified psychiatrist. While Dr. Hedgpeth primarily focuses on medication management, he understands that mental health often requires approaches from multiple perspectives. Psychodynamic and supportive therapies are offered on an as-needed basis in addition to medication management. New patients are provided 60 minutes for initial visits, and follow-ups are given 30 minutes. Dr. Hedgpeth graduated from the University of North Carolina School of Medicine in Chapel Hill, NC. He completed his adult psychiatry residency training at Virginia Commonwealth University Health System in Richmond, VA. Dr. Hedgpeth's training has positioned him to care for adults of all ages with a wide spectrum of mental health disorders and related conditions. In his residency he sought out additional experience working with patients undergoing treatment for HIV, patients with trauma-related disorders, and the LGBTQ+ population.