Karelis Sierra-Cintron, MD

Ashley is an ANCC board-certified Psychiatric Mental Health Nurse Practitioner with over a decade of experience in Psychiatry. She has worked in inpatient and outpatient settings, crisis centers, and psychiatric emergency rooms. Ashley is deeply committed to working collaboratively with individuals to enhance their well-being, creating a personalized care plan tailored to each person’s unique needs.

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Her approach integrates medication management, supportive psychotherapy, and lifestyle interventions. As a prescriber specializing in psychopharmacology, Ashley provides comprehensive medication management while utilizing a shared decision-making model. She actively involves clients in their treatment planning, discussing various options to determine the most effective path forward.

During the initial session, Ashley prioritizes establishing a comfortable, open environment where clients feel at ease. She will review medical and psychiatric history, discuss treatment goals, and explore different therapeutic options based on individual preferences. Ashley encourages questions throughout the process to ensure a collaborative and supportive treatment experience.

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.

Dr. Fatemeh Safian is a board-certified psychiatrist with experience in outpatient, inpatient, and telepsychiatry settings. She completed her residency at Larkin Community Hospital, caring for a diverse range of patients. Dr. Safian diagnoses and treats a wide variety of conditions, including depression, anxiety, OCD, PTSD, trauma-related disorders, phobias, personality disorders, ADHD, bipolar disorder, postpartum depression, and concerns across all age groups. She is dedicated to creating a safe, supportive space where people feel truly heard—believing good psychiatry starts with listening.

Dr. Safian fosters a warm, respectful, and judgment-free environment where patients can share openly. She takes time to understand each person’s symptoms, story, values, and goals. Medication is just one option; she also considers therapy, lifestyle changes, and other supports. Collaboration and trust are central to her approach, with patients guiding the care decisions.

During the first appointment, Dr. Safian conducts an in-depth, unhurried conversation to explore the patient’s history and goals. Together, they develop a personalized treatment plan that may include medication, therapy referrals, and practical strategies. Ongoing follow-ups provide space to track progress, make adjustments, and ensure the patient feels comfortable and empowered.

Dr. Mattern is board certified in Adult psychiatry. Her approach to mental health is integrative, with the utilization of complementary and alternative treatments such as yoga, lifestyle changes, and nutritional interventions in addition to traditional medication management and therapy. Dr. Mattern prefers to focus on the overall health and well-being of an individual, rather than just treating symptoms.

Dr. Mattern’s practice focuses on medication management along with elements of therapy from different modalities, such as supportive and cognitive behavioral therapy that are patient-tailored.  Dr. Mattern understands the importance of psychotherapy and may ask to bring in a therapist into your treatment team to provide the best care and outcome. Her clinical interests include depression, bipolar disorder, anxiety disorders, post-traumatic stress disorder, panic disorder, OCD, and ADHD.

After completing her undergraduate degree in Biology at Ohio Northern University, Dr. Mattern received her medical degree from Ohio University Heritage College of Osteopathic Medicine. She went on to complete her residency in psychiatry at The Ohio State University Medical Center.  She also completed yoga teacher training and presented nationally at the APA in 2019 regarding the benefits of yoga for depression.  Dr. Mattern is a member of the American Psychiatric Association, Ohio Psychiatric Physician’s Association, and Psychiatry Society of Central Ohio.

Dr. Mattern is board certified in Adult psychiatry.  Her approach to mental health is integrative, with utilization of complementary and alternative treatments such as yoga, lifestyle changes, and nutritional interventions in addition to traditional medication management and therapy. Dr. Mattern prefers to focus on the overall health and well-being of an individual, rather than just treating symptoms.  Dr. Mattern’s practice focuses on medication management along with elements of therapy.

Dr Reddy is double board certified in adult as well as child and adolescent psychiatry. She has experience working at various levels of mental health care. Dr. Reddy has most recently served as the medical director for a partial hospitalization/intensive outpatient program (PHP/IOP) for adolescents in the Dallas/Fort Worth area. She completed her general psychiatry residency at the University of Illinois at Peoria and went on to pursue her child and adolescent psychiatry fellowship at the University of Texas Southwestern. She is knowledgeable in treating patients of all ages and a wide variety of diagnoses including depression, bipolar disorder, anxiety, ADHD, OCD, PTSD, and eating disorders. Dr. Reddy is passionate about working with LGBTQIA+ populations, providing culturally informed care, and taking a person-centered approach to providing comprehensive and individualized treatment to her patients. She is well versed in incorporating psychotherapy in conjunction with medication management. She has experience in incorporating supportive, cognitive behavioral, and dialectical behavioral therapeutic approaches in her care.

Dr. Stephen Byrd is a clinical psychiatrist at Talkiatry. He is board-certified in both psychiatry and addiction medicine. He has been practicing for over 31 years in a wide variety of settings, including working with inpatients and outpatients in private practice, community mental health, geriatric, VA, and community hospital/medical center settings. Dr. Byrd's practice focuses on evidence-based medication management, usually provided in conjunction with 30-minute supportive psychotherapy, which is informed by cognitive behavior therapy, psychodynamic psychotherapy, and motivational enhancement. When more intensive therapy is needed, Dr Byrd may ask you to include a therapist as part of your care team. He received his medical degree from the University of Cincinnati College of Medicine in Ohio and completed his residency training in psychiatry at Case Western Reserve University School of Medicine, University Hospitals of Cleveland. Throughout his career, he has treated patients with a wide variety of conditions in both inpatient and outpatient settings. Additionally, He has served as director of inpatient geropsychiatry at Lutheran Hospital in Cleveland, Ohio, program manager of the substance abuse treatment program at the Charlie Norwood Veterans Affairs Medical Center in Augusta, Georgia, and medical director of outpatient behavioral health at Saint Alphonsus Regional Medical Center in Boise, Idaho. Throughout his career, Dr. Byrd has been active in training medical students and psychiatry residents, and he has held clinical teaching appointments at Case Western Reserve University School of Medicine, Northeastern Ohio Universities College of Medicine, Medical College of Georgia, University of Washington School of Medicine, Idaho College of Osteopathic Medicine and Pacific Northwest University of Health Sciences College of Osteopathic Medicine.�.�