Saba Mughal, MD

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.

Matthew Twomey, PMHNP, earned his BSN and MSN from the Massachusetts General Hospital Institute of Health Professions School of Nursing. He began his career as an adult psychiatric nurse practitioner in community health centers before commissioning as an officer in the U.S. Army Nurse Corps. After five years of active duty, he continued caring for service members and families at Fort Bliss as a civilian provider for nearly six years. He now practices in the private sector, bringing broad clinical experience to diverse patient populations.

Matthew is skilled in psychopharmacology, evidence-based practice, and telehealth delivery. He combines strong clinical expertise with a patient-centered approach to improve outcomes and streamline care. Patients can expect thoughtful collaboration, clear communication, and treatment planning grounded in the latest research and tailored to their individual goals.

He specializes in psychopharmacology and precise medication management tailored to each patient’s unique needs. He also integrates supportive psychotherapy, motivational interviewing, psychoeducation, and cognitive behavioral therapy. Through active listening and mutual respect, he fosters a safe, supportive environment where patients feel heard, engaged, and empowered in their care.

Dr. Alexandra Held is a general psychiatrist who holds a bachelor’s degree in psychology. She completed her psychiatry training at the University of Miami Miller School of Medicine. Her clinical interests include mood and anxiety disorders, PTSD, and OCD. She is passionate about incorporating psychotherapeutic tools into her practice, including supportive psychotherapy.

Dr. Held takes a warm, collaborative, and nonjudgmental approach to care. Her goal is to create a safe and supportive space where patients feel heard and empowered to take an active role in their treatment, using a combination of supportive psychotherapy and medication management.

During the first few sessions, Dr. Held will take time to get to know the patient—their history, current concerns, and what they hope to achieve through treatment. Together, they will develop a comprehensive plan that may include psychiatric medications and supportive therapy. Follow-up visits are typically focused on checking in, adjusting treatments if necessary, and continuing to build on progress.

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Dr. Moskowitz (she/her) is a board certified adult psychiatrist. She earned her medical degree from Albert Einstein College of Medicine and completed her psychiatry residency at the University of Arizona. She has extensive experience treating a wide range of mental health conditions, including depression, anxiety, ADHD, bipolar disorder, PTSD, OCD, and psychotic disorders. Dr. Moskowitz is especially passionate about working with transgender and other LGBTQ+ patients, offering inclusive, identity-affirming care tailored to each individual’s experience and needs.

Dr. Moskowitz takes a warm, collaborative approach grounded in empathy and trust. She believes in meeting patients where they are and working together to build a therapeutic relationship that supports healing, self-understanding, and personal growth. Patients can expect a nonjudgmental, respectful environment where their goals and concerns are genuinely heard and addressed.

Dr. Moskowitz integrates elements of psychodynamic, supportive, and cognitive-behavioral therapy into her work and offers medication management when appropriate. She emphasizes a personalized treatment plan for each patient, designed to align with their unique values, history, and goals. Her process includes thorough assessment, open dialogue, and flexible adjustments as needs evolve over time.

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Karen Tonner, MSN, PMHNP-BC is an ANCC board-certified Psychiatric Mental Health Nurse Practitioner with over eight years of experience providing psychiatric care in outpatient and community mental health settings. She works with patients across the lifespan and treats a broad range of mental health conditions, including depression, anxiety disorders, attention-deficit/hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), and post-traumatic stress disorder (PTSD).

Karen primarily provides medication management in conjunction with supportive therapy, using evidence-based practices to help patients achieve symptom relief and improved functioning. Her approach to care is holistic, person-centered, and collaborative, emphasizing shared decision-making and individualized treatment planning. She strives to create a welcoming, approachable, and supportive environment where patients feel comfortable being themselves and actively participating in their care. She believes that understanding each patient’s unique experiences, goals, lifestyle, and strengths is essential to effective mental health treatment.

Karen earned her Bachelor of Science in Nursing from Kennesaw State University and her Master of Science in Nursing from the University of Alabama at Birmingham. She is dedicated to continuing education to remain current with psychiatric research and is committed to delivering compassionate, high-quality care that helps patients feel heard, respected, and empowered.

Dr. John Lundeen earned his medical degree from the Medical College of Georgia and completed his psychiatry residency at TriStar Centennial Medical Center. He has worked with adults of all ages in both outpatient and inpatient settings, bringing a wide range of experience to his practice.

Dr. Lundeen approaches every patient with respect, empathy, and a genuine desire to understand their unique experience. He recognizes that seeking treatment can be intimidating and strives to create a welcoming, non-judgmental environment where patients feel safe and heard.

Dr. Lundeen believes in a collaborative treatment process, prioritizing each patient’s goals, values, and input. He emphasizes mental health education as a core component of care, empowering patients to better understand their treatment options and take an active role in their well-being.