Lorangelly Rivera, MD

Dr. Zeynep Altun is board-certified in Psychiatry and holds a Ph.D. in Neuroscience. Dr. Altun graduated cum laude from Istanbul University, Istanbul Medical School. She completed her residency training in Neurology and is Turkish board-certified in clinical Neurology. Subsequently, she moved to the U.S. and finished her Ph.D. in cellular Neuroscience at Cornell University Graduate School of Medical Sciences. Dr. Altun completed her psychiatry residency training at Albert Einstein College of Medicine, Department of Psychiatry and after, her clinical fellowship in Comprehensive Psychiatric Emergency Program at Columbia University Medical College, New York Presbyterian Hospital. Dr. Altun has practiced in various settings including Bellevue Hospital, New York Presbyterian Hospital, Columbia Doctors Faculty Practice Office, Mount Sinai West and Mount Sinai Morningside Hospitals. Dr. Altun has held various academic appointments at New York University School of Medicine Department of Psychiatry; New York Presbyterian Hospital-Columbia University Medical College Department of Psychiatry; New York State Psychiatric Institute and Mount Sinai School of Medicine Department of Psychiatry. She spent most of her professional career supervising and teaching medical students, psychiatry residents and nurse practitioners. As an adult psychiatrist, Dr. Altun has extensive theoretical knowledge of the nervous system and its disorders and more than 10 years of experience in treating various mental illnesses including mood disorders, anxiety disorders, psychotic disorders, autism-spectrum and neuropsychiatric disorders, psychiatric emergencies and crisis management as well as cognitive behavioral and supportive psychotherapy. In Columbia Doctors, she collaborated closely with the Lieber Recovery Clinic, treating young adults with various mental illnesses. The philosophy of her practice is to collaborate with patients and work together with them so that they can lead symptom-free, productive, and stable lives.

Dr. Thomas Simeone is Board Certified by the American Board of Psychiatry and Neurology in Psychiatry.  Following his completion of medical school at Universidad Autonoma de Guadalajara, he completed his Fifth Pathway Clinical Training at New York Medical College.  He then completed his Psychiatry Residency at Tuft's University in Boston, MA, and went on to complete a Child and Adolescent Fellowship Program at the University of Florida in Gainesville FL.  He has since worked in both hospital inpatient and outpatient settings, as well as in Residential Treatment for adolescents. Dr. Simeone has treated a wide spectrum of mental health conditions including Anxiety and Depression Disorders, as well as Mood Disorders and Post Traumatic Stress Disorder. He has also treated ADHD, OCD and Eating Disorders in adults and adolescents. Dr. Simeone has worked in Telehealth Practice for the past 4 years. He is a Fellow of the American Psychiatric Association (APA) and a member of the American Medical Association (AMA).

Dr. Simeone utilizes medication management and psychotherapy practices to achieve treatment goals for his patients.  During an initial assessment and evaluation, a thorough review of the patient's previous mental health treatment is considered.  Dr. Simeone assesses patients' acute symptoms including recent stressors and exacerbating factors and then establishes a comprehensive treatment plan with the patients' goals in mind.  Psychotherapy with medication is incorporated into the treatment plan of all patients.  Dr. Simeone always aims to achieve full remission of symptoms for his patients.

Dr. Simeone's practice focuses on medication management with facets of various psychotherapeutic techniques.  He conducts 30 medication management follow up sessions. Dr. Simeone is a sincere and empathic physician who advocates for patient autonomy and believes in a direct and transparent approach to patient treatment. He encourages active patient participation in their treatment plans.

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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. Melody Stupey is a board-certified psychiatrist with over 26 years of experience treating adults in both inpatient and outpatient settings. She earned her medical degree from Oregon Health Sciences University and completed her residency at the University of Texas at San Antonio. Dr. Stupey is certified by the American Board of Psychiatry and Neurology.

Dr. Stupey believes in a collaborative approach to treatment, emphasizing active listening, compassion, and respect. She strives to create a warm, supportive environment where patients feel safe and empowered to speak openly without fear of judgment.

Her treatment process is holistic, considering physical, emotional, and lifestyle factors. She evaluates diet, physical activity, sleep habits, and thought patterns alongside medication needs. Dr. Stupey prioritizes using the lowest effective dose of medication to meet treatment goals while supporting the patient’s overall well-being.

Dr. Troy Grantham is a board-certified staff psychiatrist who treats adult patients. A former engineer, Dr. Grantham has developed a passion for guiding patients along the road to recovery. He completed his undergraduate studies at The University of Texas at Austin and later completed medical school and residency in General Psychiatry at The University of Texas Medical Branch at Galveston. Dr. Grantham's practice focuses on medication management. He utilizes a systematic approach to ensure diagnoses are accurate and treatment plans are optimized to each individual patient. His approach is also holistic in nature, often incorporating therapy and lifestyle modification into the treatment plan. Dr. Grantham employs multiple therapeutic approaches in his practice depending on the needs of the patient including supportive therapy, Cognitive Behavioral Therapy (CBT), and Acceptance and Commitment Therapy (ACT). He places great emphasis on psychoeducation so that patients are aware of the nature and prognosis of their conditions as well as the treatment options available. When multiple treatment options are reasonable, Dr. Grantham takes patient preference into account, offering flexibility to the patient experience. He treats a variety of psychiatric disorders with a particular focus on mood disorders, anxiety disorders, obsessive-compulsive disorders, and trauma-related disorders.

Please note: Dr. Grantham does not prescribe long-term, daily benzodiazepine medications, however he is happy to help you taper off of these medications and transition to a safer, long-term medication regimen.

Dr. Jacob T. Kannarkat is an adult psychiatrist. Dr. Kannarkat's practice focuses on medication management. In his visits, he uses an integrative approach, blending an empathic, problem-solving orientation with an understanding that the reasons for an individual's condition can be complex. He has experience dealing with many forms of mental illness and works collaboratively with his patients and their other treatment providers in making a plan for recovery. Dr. Kannarkat completed undergraduate studies at the University of Florida. After receiving his medical degree at the University of Miami Miller School of Medicine, Dr. Kannarkat continued for residency at the University of Miami/Jackson Health System. He ultimately completed his training as Chief of Psychiatric Emergency Services at Yale School of Medicine. Dr. Kannarkat has experience working with adults of all ages who are dealing with depression, anxiety, bipolar disorder, PTSD, substance use disorders, and many other conditions.‍