David Guggenheim, PsyD

Dr. Sheena Dohar is a board certified general psychiatrist. Before joining Talkiatry, she practiced extensively in community mental health with adults of all ages in both outpatient and inpatient settings and as the medical director of several intensive outpatient and dialectical behavioral therapy (DBT) based programs. She has experience in private practice and in the dual diagnoses of mental health and substance abuse disorders. Dr. Dohar graduated from Carnegie Mellon University with a Bachelor of Science in Biology and Psychology and then completed medical school at West Virginia University School of Medicine. She trained during her residency at WVU, where she served as a chief resident and received the Brandon K. Fuller Award for Physician Empathy in 2017. Dr. Dohar's practice focuses on medication management. Her goals include helping people feel comfortable seeking treatment as well as promoting an understanding of the purpose and reasoning behind the use of various medications to treat psychiatric disorders. Typically, she offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. When Dr. Dohar may believe that additional therapy is also needed, she will ask that you bring a therapist into your care team to provide the best outcome. Dr. Dohar appreciates and values working with therapists within the Talkiatry practice and in the community in a collaborative effort to promote wellness. She strives to build strong therapeutic relationships with the people that she sees in her practice. Her passions include working in the community at large to encourage a better understanding of mental health disorders and to promote suicide awareness and prevention. She has interests in pharmacogenomics as well as treatment resistant approaches to depression. Dr. Dohar appears in several professional publications.‍

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. Cindy Rossetti is board certified in Adult Psychiatry. She has been practicing for over 13 years. Dr. Rossetti received her medical degree from The University of Arkansas for Medical Sciences in Little Rock. She completed her general psychiatry residency at the University of Kentucky in Lexington where she was chief resident. She worked at Eastern State Hospital in Kentucky treating severe and persistent mental illness. She spent most of her post-graduate time providing outpatient care in a rural and underserved area of Arkansas. Dr. Rossetti offers both medication management and therapy together in 30- and 45-minute follow-up visits. Dr. Rossetti enjoys treating adults of all ages. Her areas of interest include ADHD, Depression, Anxiety, and Autism in adults. She enjoys addressing areas such as personal growth, stress management and self-care. Her treatment is patient-centered and geared toward individual healing and wellness.

Dr. Justine Sever Chilelli, DO, earned her medical degree from the Lake Erie College of Osteopathic Medicine and completed her psychiatry residency and child and adolescent fellowship at the University of South Florida. She is board certified in General Psychiatry and Child and Adolescent Psychiatry. Her experience includes treating children, adolescents, and adults across outpatient, inpatient, consultation-liaison, school-based, and residential settings.

Dr. Chilelli values a collaborative, team-based approach where she and her patients work together to build a treatment plan. She emphasizes open and honest communication, aiming to improve quality of life and reduce the impact of mental health symptoms.

In the initial appointment, Dr. Chilelli focuses on understanding each patient’s history, concerns, and goals. She then develops individualized treatment plans that align with those goals, ensuring care that is thoughtful, supportive, and tailored to each patient’s needs.

Dr. Richard McCall is a board-certified psychiatrist with over 25 years of comprehensive experience in delivering exceptional mental health services across various settings. He received his medical degree from the University of Virginia School of Medicine and completed his Psychiatry residency training at Duke University School of Medicine. He treats adult patients of all ages and is known for a compassionate, patient-centered approach. Dr. McColl integrates psychopharmacology with multiple psychotherapy modalities. He has specialized training in psychodynamic psychotherapy, Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Acceptance and Commitment Therapy (ACT) and more. He looks forward to helping patients reach their goals for mental health care while providing a compassionate and collaborative environment.

Dr. Fang is a board-certified psychiatrist who completed his psychiatry residency at Duke University, where he received extensive training in Psychopharmacology, Psychotherapy (“Talk Therapy”), Transcranial Magnetic Stimulation (TMS), and Electroconvulsive Therapy (ECT). Throughout his life, Dr. Fang has lived in various places such as China, Canada, Upstate New York, Maine, and North Carolina, where he currently resides. This rich cultural experience allows him to connect with individuals from diverse backgrounds, which is crucial in the field of psychiatry where treatment is so highly personal. Dr. Fang has also practiced in multiple settings including a college mental health clinic, an adult ADHD clinic, a perinatal psychiatry clinic, a VA hospital, and a residential recovery program.

While Dr. Fang’s current practice is primarily focused on medication treatment, he utilizes his training as a therapist to ensure that patients feel understood and empowered to discuss any other issues they might be facing. With experience in many modalities of therapy including Psychodynamic, Supportive, Cognitive Behavioral Therapy (CBT), and Acceptance and Commitment Therapy (ACT), Dr. Fang knows that one size does NOT always fit all. If more in-depth therapy is felt to be beneficial, Dr. Fang may refer clients to a separate therapist.