Mary Phelps, DO

Background and credentials

Dr. Gerald Matthews is a board-certified adult psychiatrist. He earned his medical degree from the University of Louisville School of Medicine in Louisville, KY. Following medical school, he entered active duty service in the U.S. Army, where he completed his psychiatry residency at Tripler Army Medical Center in Honolulu, HI. After completing his training, he practiced as a staff psychiatrist at Fort Hood, TX, fulfilling his service obligation.

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Treatment approach

Dr. Matthews specializes in medication management, working primarily with adult patients in an outpatient setting. While his primary focus is pharmacological treatment, he frequently collaborates with therapists to provide comprehensive care when indicated. He has extensive experience treating civilians, active-duty military personnel, and veterans, addressing conditions such as mood and anxiety disorders, psychosis, and trauma-related disorders.

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What you can expect in a first visit

During the first visit, patients can expect a thorough psychiatric evaluation where Dr. Matthews takes time to understand their history, symptoms, and treatment goals. He provides a structured yet compassionate approach to care, discussing medication options and potential therapeutic interventions. For patients who may benefit from additional therapy, he collaborates with therapists to ensure a well-rounded treatment plan tailored to each individual's needs.

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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.

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Dr. Jacqueline Barrett is Board Certified in Adult and Child Psychiatry and Board Eligible in Forensic Psychiatry. She earned her Bachelor’s Degree in Nursing at Florida International University and her medical degree at Wayne State University in Detroit, Michigan. She completed her residency in Adult Psychiatry at Henry Ford Hospital and went on to complete fellowships in Child and Forensic Psychiatry at the University of Michigan/Center for Forensic Psychiatry. Dr. Barrett has extensive experience working in a variety of healthcare settings, including community mental health centers, inpatient and outpatient programs, and most recently at the Miami Veterans Affairs.

Dr. Barrett believes in a patient-centered approach that combines careful assessment, evidence-based treatment, and individualized care. She works with each patient to create a personalized plan that addresses both immediate needs and long-term goals. By integrating psychiatric expertise with compassion and collaboration, she empowers patients to take an active role in their mental health journey.

During your first visit, you can expect a thorough and compassionate evaluation in a warm, supportive environment where you will feel heard and respected. Dr. Barrett values open communication and works collaboratively with her patients to establish clear treatment goals. Her approach is rooted in trust, empathy, and partnership, ensuring that every patient feels comfortable and supported throughout their care.

Dr. Natalie Cummings is a board-certified adult psychiatrist, and board-eligible geriatric psychiatrist. She obtained her medical degree from the University of North Carolina at Chapel Hill, and completed her residency training in psychiatry at the University of Miami Miller School of Medicine and Jackson Memorial Hospital. She then went on to complete her geriatric psychiatry fellowship at Icahn School of Medicine at Mount Sinai Beth Israel. During her fellowship, Dr. Cummings participated in Mount Sinai's Visiting Doctors Program, providing patient-centered and compassionate care to homebound elder adults in New York City. She also received training at Coler Rehabilitation and Nursing Care Center on Roosevelt Island during her fellowship, and presented at the American Association for Geriatric Psychiatry annual meeting. During her training, Dr. Cummings gained extensive experience providing psychiatric care to various patient populations in multiple patient care settings, including in the outpatient clinic, inpatient unit, and emergency department. Following her training, Dr. Cummings worked at New York Presbyterian's Gracie Square Hospital, serving first in the position of float psychiatrist, providing care to patients on every inpatient psychiatric unit (including the young adult/college student program, Orthodox Jewish program, psychotic disorders program, crisis-stabilization program, dual focus program, and Asian Psychiatry program), before transitioning to an established psychiatric attending for the older adult program. During her time at Gracie Square Hospital, Dr. Cummings received the Physician of the Year Award, and served as a Clinical Assistant Professor of Psychiatry at Weill Cornell Medicine. She worked closely alongside staff psychologist, social workers and nurses to provide multidisciplinary, collaborative care to patients suffering from a variety of mental health conditions. Dr. Cummings primarily focuses on medication management and supportive psychotherapy, but has extensive training in utilizing various therapy modalities, including cognitive behavioral therapy, interpersonal therapy, reminiscence therapy, and psychodynamic psychotherapy. When appropriate, Dr. Cummings will refer for more extensive psychotherapy and/or collaborate with your established psychotherapist for comprehensive care. Dr. Cummings strongly believes that addressing psychosocial and interpersonal factors (including relationship health, economic stressors, social isolation and loneliness) is as essential as pharmacologic management in treating mental health conditions. She has particular experience and interest in treating older adults and those suffering from memory disorders, but provides treatment for a variety of psychiatric conditions including depression, anxiety, bipolar disorder, obsessive-compulsive disorders, trauma-related disorders and substance use disorders. Dr. Cummings is a member of the American Psychiatric Association and American Association for Geriatric Psychiatry.

Dr. Sophia Mikityanskiy is a board-certified psychiatrist with extensive experience in outpatient and psychiatric emergency settings in Brooklyn, where she served a diverse patient population. She earned her medical degree from the New York Institute of Technology College of Osteopathic Medicine and completed her adult psychiatry residency at Maimonides Medical Center, where she was Chief of Outpatient Psychiatry. Dr. Mikityanskiy spent six years as Associate Program Director and Director of Medical Student Education, mentoring future clinicians and leading initiatives to support mental health professionals.

Dr. Mikityanskiy creates a warm, supportive environment where patients feel heard and understood. She is collaborative, culturally sensitive, and integrates talk therapy with lifestyle interventions to address mental health holistically. She is thoughtful, detail-oriented, and values open communication to develop clear, personalized treatment plans with each patient.

Dr. Mikityanskiy begins with a comprehensive initial evaluation, listening closely to patient concerns, medical and psychiatric history, and treatment goals. She then develops an individualized plan, incorporating lifestyle modifications and shared decision-making. Throughout care, she remains actively involved, continuously adjusting plans to ensure patients feel informed and empowered.

Sheila Henry, MSN, APRN, PMHNP-BC, ANP-BC, is a dual board-certified Psychiatric Mental Health and Adult Nurse Practitioner with over 12 years of clinical experience. She earned her Psychiatric Mental Health Nurse Practitioner certification from the University of Michigan and her Adult Nurse Practitioner certification from Wayne State University. Sheila has provided care across inpatient, consultation-liaison, crisis intervention, and outpatient settings, treating a wide range of mental health conditions.

Sheila is dedicated to creating a safe, compassionate, and collaborative environment where patients feel heard and supported. She values open communication and works to build strong therapeutic relationships, empowering patients to take an active role in their mental health journey. She believes in tailoring treatment to each individual and takes time to ensure her patients feel understood, respected, and engaged.

Sheila integrates a holistic perspective, considering both mental and physical health, lifestyle, and relationships. Her process involves developing individualized treatment plans that may include medication management, therapy, and lifestyle guidance. She works side by side with her patients to identify goals, track progress, and make adjustments as needed, fostering meaningful and lasting improvements in overall well-being.

Belinda received her undergraduate education at the University of Tulsa and completed her nurse practitioner training at the University of Texas–Arlington, earning a Master of Science in Nursing. She is nationally board-certified in psychiatry across the lifespan and has over a decade of experience working in outpatient, residential, and inpatient care settings. She is skilled in medication management and utilizes therapeutic modalities such as CBT, DBT, ACT, and psychodynamic approaches.

Belinda is a passionate psychiatric nurse practitioner dedicated to continual development and lifelong learning. With over ten years of experience, she spent more than five years working in a residential eating disorders facility. She has evaluated and treated individuals with a wide range of diagnoses, including depression, anxiety, OCD, and PTSD. Belinda believes in addressing the whole person and thrives on helping people find individualized solutions. While she specializes in using medication when necessary to alleviate symptoms, she also incorporates therapeutic techniques into her sessions to help clients discover what works best for them.

She prioritizes the therapeutic relationship and supports patient-centered goals. Belinda empowers her clients to choose options that align with their lives and encourages active engagement in self-care. She is deeply committed to helping individuals improve their quality of life by identifying and addressing areas of struggle, such as depression or grief. Additionally, she supports clients in recognizing and overcoming fears by identifying stressors and developing new coping strategies. Her approach inspires clients to reduce stress and prioritize rest and sleep to enhance overall wellness—body, mind, and soul.

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