Matthew Richter, MD

With a lifelong commitment to helping others, Erica Boncella, LPC, began her career in Law Enforcement, focusing on Protection from Abuse cases. This experience inspired her to specialize in therapeutic practices that support healing. Symbolized by the lotus flower, her practice emphasizes resilience and transformation. Erica brings over 18 years of combined clinical and forensic experience, specializing in trauma recovery, PTSD, domestic violence, disordered eating, addiction, and support for Veterans and Law Enforcement professionals. She holds certifications as a CCTP, in Dual Disordered Eating/Trauma & Shame, and in Addictions.

Erica provides a compassionate, non-judgmental environment where clients feel understood and empowered. She treats everyone with respect and sensitivity, recognizing the courage it takes to pursue change. Her approach is individualized, helping clients cultivate healthier relationships with themselves. As she often says, “You don’t have to do it alone. I am here to support and empower you every step of the way.”

Erica begins each session with an open dialogue to understand clients’ questions and concerns. She collaboratively establishes preliminary goals, emphasizing that these may evolve naturally. She creates a safe space where clients are never pressured to discuss topics prematurely. Her practice is grounded in empathy, sensitivity, and individualized care, guiding clients toward a more fulfilling and empowered life.

Lisa Mazzotti is a Licensed Professional Counselor in Colorado, and a Licensed Mental Health Counselor and Certified Addiction Professional in Florida. She earned her bachelor’s in Psychology and a master’s in Human Development Counseling from the University of Illinois. With more than 30 years of clinical experience, she has worked with adolescents, adults, and older adults in individual, couple, family, and group settings. Lisa also served as an adjunct professor, teaching psychology and sociology courses for over a decade in high schools, colleges, and correctional facilities. Her extensive background includes treating addictions, trauma, mood and anxiety disorders, OCD, ADHD, self-harm, and eating disorders.

Lisa meets each person where they are, creating a safe space where clients feel heard, valued, and respected. She emphasizes open communication, collaboration, and mutual trust, encouraging patients to share what feels most comfortable and meaningful to them. Lisa’s goal is to empower clients to identify and pursue their personal goals at their own pace, fostering lasting growth. She brings compassion, positivity, experience, and humor to her sessions, reminding patients that change begins with understanding and acceptance.

Lisa tailors her approach by exploring each patient’s history, strengths, and priorities to create an individualized treatment plan. Drawing on Acceptance and Commitment Therapy (ACT), Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Rational Emotive Behavior Therapy (REBT), Mindfulness, Motivational Interviewing, and Solution-Focused Therapy, she adapts her methods to meet each client’s needs. Lisa has facilitated Intensive Outpatient (IOP), Partial Hospitalization (PHP), and inpatient group therapy for co-occurring disorders. She supports clients with a broad range of concerns, including anxiety, depression, PTSD, grief, self-harm, abuse, and both physical and psychological addictions.

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. Marla Richard is a Stanford-trained board-certified psychiatrist and is board-eligible for geriatric psychiatry from UCSD. She has been practicing in a variety of settings for the last 30 years. Dr. Richard uses an integrated health paradigm with general and geriatric patients using traditional psychopharmacology, interpersonal neurobiology practices, and personality assessments to look at root motivations for behaviors to address core issues and with medication management as needed. Dr. Marla believes that you need to take a whole-person approach to both mental and physical health. She received her undergraduate degree from the University of Minnesota, Duluth, and then attended medical school at Stanford Medical School to complete her MD. With visions of becoming a general surgeon, she went to the University Hospitals of Cleveland and completed two years of general surgery training before seeing the light and transferring to psychiatry. She completed her psychiatry training at Stanford University and geriatric training many years later at UCSD. Her focus includes an integrated approach to the consideration of mental and physical health while incorporating mindfulness tools to teach skills of stress and anxiety management in everyday life. In conjunction with medication management, she uses interpersonal neurobiology to help clients understand triggers as well as methods to calm overactive stress responses and reactivity.

Dr. Cheng is a board-certified psychiatrist who provides medication management alongside supportive therapy. She takes an individualized, patient-centered approach, creating comprehensive treatment plans tailored to each person's needs. With an approachable and caring demeanor, she helps patients address both immediate concerns and underlying stressors. Dr. Cheng believes in evidence-based practices while maintaining sensitivity to each patient's unique mental health journey.

Background  and credentials    

Dr. Columban Heo is a board-certified psychiatrist. He earned his medical  degree from Touro University Nevada and completed his residency at Unity  Health White County Medical Center. Dr. Heo further specialized by completing  a fellowship in Consultation-Liaison Psychiatry at the Cleveland Clinic,  where he gained extensive experience working within multidisciplinary  healthcare teams, particularly focused on psychiatric care for patients with  complex medical conditions.    

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Treatment approach  

Dr. Heo specializes in treating a broad range of psychiatric conditions,  notably mood and anxiety disorders. He integrates medication management with  a holistic, personalized approach to treatment, emphasizing the  interconnectedness of mind, body, and spirit. Dr. Heo believes in tailoring  treatment plans individually, combining therapy and medications to suit each  patient’s unique needs, and highlights the importance of healthy  relationships in achieving overall mental health.    

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What you can expect in a first visit    

Patients visiting Dr. Heo for the first time can expect a comprehensive and  personalized assessment that explores not just their psychiatric symptoms but  their overall well-being and personal relationships. Dr. Heo prioritizes a  holistic evaluation, carefully balancing medication considerations and  therapeutic interventions tailored specifically to each patient’s situation  and goals. He creates an empathetic, collaborative atmosphere to discuss and  develop personalized plans for mental and emotional wellness.  

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Why Talkiatry?    

We’re a virtual mental health practice that makes it easy to find great  care. We combine quality and convenience to help you thrive—faster. Our  providers, like this one, are highly trained experts who specialize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.