Karelis Sierra-Cintron, MD

Dr. Agnes Tolentino is a board-certified adult psychiatrist with over 20 years of practice experience.  She obtained her undergraduate degree at the University of the Philippines and completed medical school at the University of the East.  She finished her psychiatry residency at the Harvard South Shore program as chief resident in her final year.  She has a strong background in psychotherapy as an adjunct to medication management.  She has extensive experience in treating PTSD, medically ill patients, elderly patients and those with terminal illnesses. She spent the last 15 years treating the geriatric population and those adjusting to co-morbid medical problems.  

She is an empathic listener and collaborative clinician, focused on treating the whole person.  She emphasizes the need to use healthy coping mechanisms as well as lifestyle changes to complement medication management.  In keeping with the “whole person” focus, the role of physical well-being is important. A thorough medical history will be obtained on your initial appointment.  

Gathering a thorough psychiatric and medical history is paramount in a successful therapeutic relationship.  And with time, a trusting therapeutic environment should be fostered.

‍

Dr. Osamudiamen Osa-Edoh is board-certified in general adult psychiatry. He earned his medical degree from the University of Benin in Nigeria and completed his psychiatry residency at Meharry Medical College in Nashville, Tennessee, where he served as Chief Resident and received multiple honors. He previously served as Medical Director at Sumner Regional Hospital and Assistant Professor at Meharry Medical College.

As a psychiatrist, Dr. Osa-Edoh diagnoses and treats mental illnesses through medication management and psychotherapy. He believes in a kind, compassionate, and evidence-based approach that prioritizes patient needs and fosters a supportive, healing environment.

Dr. Osa-Edoh creates a welcoming, collaborative space where patients feel heard and supported. He takes time to listen, building trust and a strong therapeutic relationship. His goal is to partner with each patient to support their mental health and help them reach their personal wellness goals.

Dr. Jylia Lobanova is a board-certified psychiatrist who began her medical career in Tashkent, Uzbekistan, where she worked at the Central Psychiatric Hospital. After moving to the U.S., she completed her residency at MetroHealth Medical Center, affiliated with Case Western Reserve University. She has treated diverse populations in both inpatient and outpatient settings, including work at Portage Health Clinic in Ohio, Harris Health in Houston, and Legacy Community Health, where she focused on LGBTQ and HIV-positive patients.

Dr. Lobanova values building a trustful and respectful therapeutic relationship. She creates a welcoming space for open communication and mutual understanding, which she believes is the cornerstone of effective treatment. She is especially passionate about supporting patients from diverse cultural backgrounds and has a special interest in women’s mental health across the lifespan.

Dr. Lobanova takes a holistic approach to care, combining medications, psychotherapy, psychoeducation, proper nutrition, and physical activity. She partners closely with each patient to develop an individualized treatment plan tailored to their unique goals and needs, always striving to empower them in their journey toward mental wellness.

‍

Dr. Ernesto Gonzalez is a board certified adult psychiatrist. He completed his undergraduate training at Yale University and received his medical degree from the University of Pennsylvania School of Medicine. He completed his residency training at the Cambridge Health Alliance/Harvard Medical School Adult Psychiatry Training Program. Dr. Gonzalez prefers a holistic approach that takes the time to know the whole patient, incorporating biological, psychological, social, and cultural perspectives in crafting a comprehensive, individualized, treatment plan. He practices medication management combined with supportive therapy, typically delivered within 30 minute sessions. Elements of psychodynamic, dialectical behavior and cognitive-behavioral therapy will also be incorporated into sessions based on a patient's individual needs. If additional therapy is needed, Dr. Gonzalez will recommend the addition of an individual therapist to the patient's treatment team. Having dedicated his career to adult outpatient psychiatry, Dr. Gonzalez has worked with patients from a wide range of ages, cultures, ethnicities, and social settings across the New York City area. His primary focus is working with patients with depression, anxiety, ADHD, and PTSD. He also values working with people adjusting to changes in their lives, whether it be grieving the loss of a loved one, changes in employment, relationships, or adjusting to changes that come with age. Prior to joining Talkiatry, Dr. Gonzalez was an Assistant Professor at the NYU Grossman School of Medicine and served as Director of the Adult Outpatient Psychiatric Department, Assertive Community Treatment (ACT) Team, and Collaborative Care Departments at Woodhull Hospital in Brooklyn, New York. He also had a small practice near his home. Dr. Gonzalez has also had a lifelong interest in meeting new people and experiencing different cultures. This interest has taken him as far away as the townships of Cape Town, South Africa and as close as his local diner, and it edifies the work he does with patients.

Dr. Nathan Schulz attended the Ohio State University College of Medicine where he received his degree before completing a residency in psychiatry at the University of Illinois, Chicago. After several years working with veterans at the Jesse Brown VA in Chicago, he returned to his home state of Iowa in 2022. Since then, he has continued to work with a wide variety of clients and conditions in both inpatient and outpatient settings, including at the University of Iowa and Clive Behavioral Health hospital.

Dr. Schulz values open, honest, and ongoing dialogue about how mental health treatment can improve wellbeing and lead to healing. Over time, he tailors treatment recommendations based on individual needs, which may include medication, therapy, lifestyle changes, or other approaches. He avoids a one-size-fits-all model and creates an environment where patients feel respected, understood, and supported as unique individuals.

In the first meeting, Dr. Schulz works to understand each patient’s goals, experiences, and preferences. Some arrive knowing what they want, while others are new to exploring mental health challenges. His goal is to meet patients where they are and adjust treatment focus as needs evolve. He emphasizes collaborative decision-making, clearly discussing treatment options, pros and cons, and next steps, while ensuring patients feel informed and empowered throughout care.

Dr. Saria El Haddad is double boarded in general psychiatry and addiction psychiatry. She previously held a leadership role of medical director for the dual diagnosis partial hospitalization program at the Brigham and Women's Faulkner hospital where she helped create and establish this program, and also worked as an outpatient addiction psychiatrist. She has been involved in teaching and has maintained an academic affiliation with the Harvard Medical School. In addition, she has appeared in numerous professional publications and authored several research papers.  

Dr. El Haddad received her medical degree from the American University of Beirut, Lebanon and completed her psychiatry residency program at the University of Virginia. She completed a fellowship in addiction psychiatry through Boston University after which she started working at the Brigham and Women's hospital. Dr. El Haddad's approach to treatment focuses on adopting a holistic approach through behavioral change, medication management, and brief psychotherapy.