Luna Sanchez Rivera, MD

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Dr. Nereida Gonzalez-Berrios is a general psychiatrist fluent in English and Spanish. She earned her bachelor’s degree in Microbiology from the University of Puerto Rico and her medical doctorate from Ponce School of Medicine (now Ponce Health Sciences University). She completed her General Psychiatry Training Program at the University of Puerto Rico Medical Sciences Campus, graduating in 2008. After practicing privately in Puerto Rico, she relocated to Texas, where she worked for over five years at the Michael E. DeBakey VA Health System, providing mental health care to veterans. She has also gained extensive experience in telemedicine, working both within the VA system and as a locum tenens provider.

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Treatment approach

Dr. Gonzalez-Berrios has extensive experience treating a wide range of psychiatric conditions, including mood disorders, anxiety disorders, psychotic disorders, intellectual impairment, ADHD, eating disorders, PTSD, and personality disorders. She integrates traditional psychiatric treatment with a holistic wellness approach, drawing on her background as a motivational speaker, wellness coach, certified personal fitness trainer, nutrition coach, and weight-loss specialist. Her approach emphasizes improving overall mental and physical well-being through personalized treatment plans that incorporate psychiatric care, wellness strategies, and lifestyle modifications.

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What you can expect in a first visit

Patients can expect a comprehensive psychiatric evaluation where Dr. Gonzalez-Berrios carefully assesses their symptoms, medical history, and personal wellness goals. She takes a collaborative and patient-centered approach, ensuring that treatment is tailored to each individual’s mental and physical health needs. As an experienced telemedicine provider, she offers accessible and flexible mental health care, combining medication management and holistic wellness strategies to help patients achieve lasting well-being.

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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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Michael Russell, LMHC

Staff Therapist

Michael Russell is a licensed mental health counselor with extensive experience in the mental health field. Michael has worked directly with clients living with various mental health conditions. He attended Undergraduate and Graduate school in Queens, NY. Michael works on continuing to expand upon his experience and knowledge in the mental health field by attending trainings and receiving certifications in niche areas. Michael has been practicing for 6 years as a Clinical Mental Health Counselor, focusing on anxiety and mood disorders and life challenges, which may impact daily life. He likes to tailor treatment to each individual so that it fits that individual's specific needs. Michael uses an integrative approach with a foundation in Cognitive Behavioral Therapy and Person-Centered Therapy.

Maralys Colon Betancourt, MD

Staff Psychiatrist

Dr. Maralys Colón is a board-certified psychiatrist. She graduated from the University of Puerto Rico School of Medicine, and she completed a subspecialty in Forensic Psychiatry at the University of Tulane. Dr. Colón is keen in involving and guiding her patients in their treatment; she believes that patients benefit from taking an active role in their care. Dr. Colón specializes in psychopharmacology, tailoring the medication to your needs and preferences. She has experience in treating patients with depression, anxiety, PTSD, OCD, bipolar and psychotic disorders. Her practice focuses on medication management in conjunction with techniques from cognitive behavioral therapy and supportive therapy. Her years of experience include working as an inpatient psychiatrist, an intensive outpatient program, and consultation and liaison. She has helped train physician assistants at Valparaiso University, helping expand the knowledge of future providers. Dr. Colón is looking forward to working with you to improve your mental health and quality of life.

Lorangelly Rivera, MD

Staff Psychiatrist

Dr. Lorangelly Rivera is board-certified in Adult psychiatry and has been practicing for over 5 years. Dr. Rivera focuses on medication management and brief psychotherapy utilizing techniques from cognitive behavioral therapy, psychodynamic therapy, and supportive therapy in 30-minute appointments. When appropriate, Dr. Rivera may recommend additional psychotherapy with a psychologist as part of the treatment plan. She is fluent in both Spanish and English and is passionate about working with the Latinx population. She completed her bachelor's degree in Cellular Molecular Biology from Metropolitan University, San Juan, Puerto Rico, and her postgraduate work at the National Cancer Institute in Bethesda, Maryland. Dr. Rivera received her medical degree from Ponce Health Sciences University School of Medicine, Ponce, Puerto Rico. She completed her residency training in psychiatry at the University of Rochester Medical Center. After completing her training, she began working for Lifespan Physician Group where she became program director for Lifespan Latinx Mental Health Services and served as Staff Psychiatrist at Rhode Island Hospital and The Miriam Hospital. She holds a faculty position in The Warren Alpert Medical School of Brown University, Department of Psychiatry and Human Behavior as a Clinical Instructor. ‍

Tracey Les Pierre, LCSW

Staff Therapist

Tracey Elle is a licensed clinical social worker specializing in psycho-somatic manifestations of stress, anxiety, trauma, perinatal support, postpartum/variable presentations of depression, parenting support, and grief (loss of loved ones/menopause/life transitions/unfulfilled goals).

Tracey utilizes psychodynamic, CBT, and solutions-oriented approaches to patient centered care. Tracey has worked with individuals from all walks of life, LGBTQIA+ community and age groups.

Tracey is committed to providing a comfortable and safe therapeutic environment in order to support the journey to a new path of emotional freedom and wholeness of mind, body and spirit, judgment free. She is committed to working alongside you to fine tune the coping strategies that you already have and help you uncover new mechanisms to add to your self-care toolbox.

Viga Naik, MD

Staff Psychiatrist

Dr. Viga Naik takes a holistic approach when practicing, understanding the importance of an integrative treatment care model. She believes optimal patient care goes beyond psychopharmacology and requires incorporation of psychotherapy and psychosocial intervention. She is a strong advocate for her patients, dedicated to being an educator of mental illness to break self, societal, and systemic stigmas. She believes that a strong therapeutic alliance between clinician and patient is essential. She works on creating a safe and empathetic environment while providing psychoeducation to patients, empowering them to play an active role in their treatment. Dr. Naik is an adult psychiatrist with specializations in Addiction Psychiatry and Consultation-Liaison Psychiatry, also known as psychosomatic medicine. She completed her residency training at New York Medical College and fellowship training at the Mount Sinai Health Systems located at Bronx Care and Beth Israel Hospital. She has worked in both inpatient and many outpatient specialty clinics such as psych/oncology, transplant, collaborative-care, medication assistance treatment, music and medicine, and gender affirmation surgery treating patients with comorbid mental illness and substance use disorders as well as comorbid mental illness and general medical conditions. Her practice focuses on medication management in combination with supportive therapy and providing psychoeducation to patients. She treats depression, anxiety, bipolar disorder, obsessive compulsive disorder, post-traumatic stress disorder, general anxiety disorder, substance use disorders and other associated psychiatric disorders.

LaJoya McDonald, LCSW

Staff Therapist

LaJoya McDonald is a Licensed Clinical Social Worker (LCSW) with extensive experience across outpatient, telehealth, and managed care settings. She holds a Master’s degree in Social Work and specializes in treating anxiety, depression, trauma, grief and loss, and life transitions.

LaJoya is dedicated to creating a safe, supportive, and collaborative environment where clients feel heard and empowered. Her treatment style is integrative and person-centered, utilizing evidence-based approaches such as Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), trauma therapy, Motivational Interviewing (MI), Solution-Focused Therapy, Interpersonal Therapy, Psychodynamic Therapy, supportive therapy, goal-oriented therapy, and mindfulness-based techniques.

LaJoya helps clients explore their thoughts, emotions, and patterns while developing practical tools for coping, healing, and growth. She believes in tailoring each treatment plan to the unique goals, strengths, and values of the individual, and takes pride in walking alongside her clients through life’s challenges with compassion and respect.

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Cedric Skillon, MD

Staff Psychiatrist

Dr. Cedric Skillon is a board-certified adult psychiatrist with over 20 years of experience. Dr. Skillon’s clinical expertise includes treating adults with depressive disorders, bipolar disorders, anxiety disorders, substance -related and addictive disorders, and trauma related disorders. Dr. Skillon has worked in a variety of mental health care settings including academia, community mental health centers, and a substance use treatment center.

Dr. Skillon grew up in Detroit, Michigan. He obtained his Bachelor of Science from the University of Michigan. He received his medical degree from Wayne State University. He completed a General Psychiatry Residency at University Health Center of Pittsburgh, Western Psychiatric Institute and Clinic

Dr. Skillon combines a wealth of knowledge and experience with a compassion for meeting the patient “where they are” in their healing process. He believes in allowing the patient to feel heard in every session. He fully explains the risk and benefits of each treatment option. Then in collaboration, he and his patient agree on the next step to take towards the patient’s treatment goals.

Dr. Skillon is dedicated to providing hope and healing in a trusting environment. He combines empathy with a patient centered, and evidence-based approach in helping patients reach their treatment goals.

Derek Robben, MD

Staff Psychiatrist.

Dr. Robben proudly served in the U.S. Air Force and has been practicing psychiatry for 17 years. He is happy to have completed his medical school education, as well as his residency in general psychiatry and fellowship in addiction psychiatry, all at the University of South Florida in Tampa. Dr. Robben is board certified in both general psychiatry and addiction psychiatry. He has experience in many roles over the span of his career to include working with Veterans diagnosed with posttraumatic stress disorder and substance use disorders, managing specialty clinics for patients with treatment-resistant depression, and working in general outpatient psychiatry clinics, as well as emergency and inpatient psychiatric settings. Dr. Robben also previously served as the Training Director for the University of South Florida Morsani College

of Medicine Addiction Psychiatry Fellowship Program. He is currently the Medical Director at a residential substance use disorder treatment center in Florida. Additionally, Dr. Robben is a certified Medical Review Officer and has additional qualifications in transcranial magnetic stimulation (TMS) and Spravato.

(esketamine). Dr. Robben has been voted as Addiction Medicine "Top Doctor" in Tampa Bay, FL by physicians for 8 of the last 9 years. Dr. Robben specializes in treating depression, bipolar disorder, anxiety, PTSD, OCD, ADHD and substance use disorders.

Dr. Robben uses a supportive, patient-centered approach, taking into account each individual's personal values and goals when formulating a treatment plan. He educates patients on the most up to date scientific evidence and provides multiple treatment options to help each person determine the most appropriate plan for them.

Dr. Robben believes in a collaborative and holistic approach to working with his patients. Dr. Robben spends a significant amount of time educating his patients on all forms of mental health treatment, from medications and psychotherapy, to nutrition, exercise, meditation and sleep hygiene. What works well for

One person may not work well for another person. Having options and understanding the potential benefits and risks of each treatment empowers patients to take an active role in their own healthcare.

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Reaghan Hicks, MD

Staff Psychiatrist

Dr. Reaghan Hicks is a double board-certified psychiatrist in General and Addiction Psychiatry. She completed her undergraduate training at The College of Charleston followed by medical school at The University of South Carolina School of Medicine. Dr. Hicks completed Residency in General Psychiatry at The University of Florida College of Medicine in Jacksonville followed by Fellowship in Addiction Psychiatry at The Medical University of South Carolina. Dr. Hicks is an experienced clinician that specializes in treating individuals with a variety of diagnoses including adjustment disorders, depression, anxiety, PTSD, bipolar disorder, ADHD, and substance use disorders.‍She has an approachable style and values building rapport with her patients. She believes it is a privilege to be a part of someone's journey towards recovery and wellness. Dr. Hicks aims to meet each patient where they are while maintaining a nonjudgemental, patient-centered, and evidenced-based treatment approach. Dr. Hicks provides supportive psychotherapy, cognitive behavioral skills, and utilizes motivational interviewing to meet the needs of her patients. She believes effective utilization of therapy skills in conjunction with medication management can help patients meet their individualized treatment goals.

Karelis Sierra-Cintron, MD

Staff Psychiatrist

Dr. Sierra-Cintron is board-certified in adult psychiatry by the American Board of Psychiatry and Neurology and has been in practice for 12 years. Dr. Sierra-Cintron focuses her practice on medication management. She also engages in supportive therapy in a comprehensive way, focusing on the patient as a whole and not just the symptoms. Dr. Sierra-Cintron has a broad understanding of vitamin support as an adjunctive treatment to traditional medication. She has broadened her understanding of second-line treatment, having been certified in Electroconvulsive Therapy (ECT), conducting clinics in Clozapine and Long-Acting Antipsychotics (LOA), and even conducting assessments for patients interested in weight loss surgery. Dr. Sierra-Cintron has a comprehensive approach to treatment, and might consider the addition of therapy, either by referral or collaborating with an existing therapist for a more rounded approach and improved outcome. Dr. Sierra-Cintron received her medical degree from the Universidad Central del Caribe located in Bayamon, Puerto Rico. Upon graduation, she relocated to Philadelphia, where she started her residency program at Einstein Medical Center. After completing her training, she worked for 8 years in a community mental health clinic, treating an underserved population in all modalities of psychiatric care. In her 12-year career, Dr. Sierra-Cintron has treated both adult males and females, including seniors. This has led to varied and wide-ranging diagnoses during the length of her career. After leaving the community clinic setting, she started working for an outpatient clinic in a suburb of Philadelphia. Dr. Sierra-Cintron's current areas of focus are adults with Mood Disorders, Anxiety Co-Occurring Substance disorders, as well as patients with varied concomitant medical problems.‍

Ayanna Swinton Jamison, MD

Staff Psychiatrist

Dr. Ayanna Swinton Jamison is a board-certified psychiatrist with over 18 years of experience in general, as well as child and adolescent psychiatry. She has extensive experience in counseling, and medication management. Dr. Jamison is committed to educating her patients about their illness and providing personalized care for each patient. Dr. Jamison received her undergraduate degree from Jackson State University. She graduated from Saint Louis University Medical School and completed her residency training in general psychiatry and child and adolescent psychiatry at the University of South Carolina. Dr. Jamison is a proud mom of four who enjoys spending time with her family, and attending her kids' sports events.

Luna Sanchez Rivera, MD

Education and training

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