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Andrea Hamilton, LPC

Staff Therapist
Languages
English
SPECIALTIES
Talk Therapy
Anxiety
Depression
PTSD/Trauma

Education and training

  • Florida Atlantic University Master in Counseling (MC)

Get to know

Andrea Hamilton, LPC

Andrea Hamilton, LMHC, MBA is a Licensed Mental Health Counselor with over 20 years of experience providing compassionate and effective therapeutic care to individuals, families, and groups. Throughout her career, she has worked across diverse settings, including educational institutions, foster care systems, group homes, government agencies, and healthcare organizations. This extensive background has equipped her to address a wide range of mental health challenges, including anxiety, depression, trauma, relationship issues, and life transitions.

She holds a Master of Education and an MBA from Florida Atlantic University, along with a Bachelor of Science in Psychology with a minor in Criminal Justice. She is CFARS Certified, and a Qualified Supervisor in the State of Florida. Her commitment to professional growth is evident in her numerous certifications and specialized training in ethics, trauma processing, domestic violence, and online counseling.

In addition to her clinical expertise, Andrea Hamilton has served as an adjunct professor and leader in clinical operations, further demonstrating her dedication. She is committed to delivering accessible, high-quality care tailored to the unique needs of her clients.

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Matthew Deise, PMHNP

Staff Nurse Practitioner

Matthew is a board-certified psychiatric mental health nurse practitioner and received his education in this specialty at Maryville University of St. Louis, Missouri.  He has been working in the mental health field for over 20 years and has provided care to patients in diverse care settings including psychiatric hospitals, outpatient mental health centers, psychiatric home health, and telepsychiatry.  Matthew is passionate about expanding access to high quality mental health care to all in need and greatly enjoys collaborating with patients from diverse backgrounds.  In his free time, he enjoys hiking, camping, reading, traveling, and searching for the best Mexican food around.  

Patients working with Matthew should know that he utilizes a very collaborative approach to patient care.  He does not assume that he knows what's best for patients but works closely with them to find the most appropriate and effective treatment plan for the unique individuals that he treats.  For Matthew, safety is always the first priority, but he does not believe in a "one size fits all" approach to mental health care and is focused on tailoring the treatment to the patient.  Matthew utilizes an empathic approach to mental health treatment and patients will feel heard and valued.  

Matthew's process for working with patients includes a thorough psychiatric evaluation at the initial appointment to make sure we are getting to the right diagnosis and remaining on track to improve the patient's mental health. Follow-up appointments are focused on monitoring for progress or regression and working collaboratively to meet mutually agreed upon goals. Collaboration is key!

Mohammed Islam, MD

Staff Psychiatrist

Education and training

Stony Brook University (Bachelor of Science)

American University of Integrative Sciences (MD)

Davenport University (MBA)

Bergen New Bridge Medical Center (residency)

University Hospitals Cleveland Medical Center/Case Western Reserve University (fellowship)

Dr. Mohammed Islam is board certified in both General Psychiatry and Child and Adolescent Psychiatry. He completed his undergraduate studies at Stony Brook University and attended medical school at the American University of Integrative Sciences. He completed his psychiatry residency training at Bergen New Bridge Medical Center followed by completion of a fellowship in Child and Adolescent Psychiatry at University Hospitals/Case Western Reserve University where he served as Chief Fellow. Prior to joining Talkiatry, he has trained/worked in a combination of various healthcare systems across New York, New Jersey, Ohio and Kentucky.

Dr. Islam treats patients of various ages- in addition to medication management he is a strong proponent of therapy in various forms. His approach to the treatment of adults and children/adolescents incorporates the impact of various things such as family history of mental health/medical conditions as well as any adverse childhood experiences/trauma. In addition to screening for common conditions such as bipolar disorder, anxiety and depression in all patients, he also emphasizes the importance of screening for conditions that can manifest in childhood (such as ADHD, Autism) as well as first-episode psychosis in young adults.

From the initial visit and onward, Dr. Islam prioritizes a collaborative effort with his patients (and at times their families). In addition to medication adjustments, he emphasizes the importance of optimizing additional tools such as therapy while making appropriate lifestyle changes. During every follow up visit, he takes care to ensure that the current treatment is not hindering his patient’s progress in any way.

Brianna Quirk, LMHC

Staff Therapist

Brianna Quirk is a licensed mental health counselor in the state of New York. She attended SUNY Oneonta for her Bachelor’s degree in psychology, and went on to Adelphi University where she received her Master’s degree in Mental Health Counseling.


Brianna has extensive experience working with children, adolescents, and adults with a variety of different struggles. Brianna is trained in cognitive behavioral therapy, and helps her clients to recognize and change harmful and unhelpful patterns of thought and behavior, implement coping skills, and set goals for the future, leading to a happier and healthier existence. She uses techniques from CBT, solution focused therapy, psychodynamic therapy, and more to tailor each client’s sessions to their individual needs.


Brianna specializes in working with individuals from a variety of different backgrounds and mental health issues: such as anxiety, ADHD, stress, depression, trauma, school avoidance and grief/loss. She also has extensive experience working with members of
the LGBTQ+ community.

Elyse Sipka, PMHNP

Staff Nurse Practitioner

Elyse Sipka is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with over a decade of experience as a mental health RN in outpatient, inpatient, and residential settings, including eating disorder treatment centers, inpatient psychiatric units, and crisis units. She earned her Master of Science in Nursing from Indiana Wesleyan University in 2021 and has been practicing as a PMHNP in an outpatient setting for over four years, caring for adults with a wide range of mental health needs including depression, anxiety, OCD, bipolar disorder, ADHD, PTSD, substance use, eating disorders, and severe mental illness.

Elyse creates a safe and supportive environment where patients feel heard and valued. She is warm, empathetic, and approachable, providing comprehensive and holistic care that combines medication management, therapy, and lifestyle interventions to help clients achieve their treatment goals.

Elyse begins with an in-depth initial assessment exploring physical, mental, emotional, and spiritual health. She collaborates with clients to develop individualized treatment plans, integrating medication management with psychotherapy using principles of supportive therapy, Acceptance and Commitment Therapy (ACT), and Cognitive Behavioral Therapy (CBT).

Natalie Cummings, MD

Staff Psychiatrist

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.

Kaitlyn Brady, LMHC

Staff Licensed Mental Health Counselor

After receiving my bachelor's in psychology from SUNY New Paltz in 2013, I worked as a medical assistant with individuals with developmental disabilities. From there, I recognized the need to promote mental health and a balanced way of living. I completed my master's in clinical Mental Health Counseling through Walden University in 2021. My goal is to guide individuals towards cultivating their own sense of independence, ability to utilize healthy coping strategies, and regain control over their lives. I work with children, adolescents, teenagers, adults, couples, and families as they begin their journey through processing adjustment changes, anxiety, depression, anger, grief, trauma, among other symptoms. Through the therapeutically proven interventions from CBT, DBT, person-centered therapy, and mindfulness, we can begin to explore triggers, symptoms, and challenges in a safe, respectful environment.

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Specialties
Talk Therapy
Anxiety
Depression
PTSD/Trauma
States
Florida
Missouri
Languages
English
Takes insurance
Virtual visits
years experience