Blanca Osorio Candelaria, MD

Severine Dondina, PMHNP-BC, is a board-certified psychiatric nurse practitioner with licensure in Washington and Florida. She holds a Master of Science in Nursing from the University of Alabama at Birmingham and graduated summa cum laude with dual bachelor’s degrees in nursing and biomedical science. Her background spans outpatient, community, forensic, and crisis psychiatry, including leadership roles with Florida’s Assertive Community Treatment (FACT) and Multi-Disciplinary Forensic Teams.

Currently serving patients in Washington, Severine treats adults with ADHD, anxiety, depression, PTSD, and bipolar disorder. She brings a trauma-informed, strengths-based approach to care and is deeply committed to creating affirming spaces for LGBTQ+ and gender-diverse individuals. Her clinical style combines evidence-based medication management with warm, collaborative support.

Trilingual in English, French, and Spanish, Severine is known for her cultural sensitivity, clinical rigor, and authentic presence. She approaches each patient with curiosity, humility, and respect—believing healing begins with connection.

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Background and credentials  

Dr. Alexandra Baluna, MD, is board-certified by the American Board of  Psychiatry and Neurology. She received her medical degree from  LSUHC-Shreveport and completed her psychiatry residency training at  Montefiore/Albert-Einstein College of Medicine, where she served as chief of  the Consultation-Liaison (C/L) service. Following residency, Dr. Baluna  served as Senior Chief, during which she was honored with the Leo M. Davidoff  Award for Outstanding Achievement in the Teaching of Medical Students. Her  professional experiences include roles at Fordham University, Albert Einstein  Student Mental Health Counseling Center, and most recently, as an outpatient  psychiatrist at Maimonides Medical Center, where she enjoyed teaching and  supervising residents.  

Treatment approach  

Dr. Baluna emphasizes creating a warm, empathic, and nonjudgmental  therapeutic environment. She collaborates closely with patients to develop  personalized treatment plans that consider cultural, biological,  psychological, and social factors. With a strong interest in psychotherapy,  she frequently employs ego-supportive and insight-oriented therapy techniques  during follow-up sessions.  

What you can expect in a first visit    

During an initial visit, patients can expect a welcoming and supportive  atmosphere where Dr. Baluna conducts a comprehensive assessment. This  involves exploring the patient's history, current challenges, and individual  circumstances. The goal of the first session is to collaboratively build an  individualized treatment plan tailored specifically to the patient's unique  needs.  

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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 speciualize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.

Dr. Nelson is a board-certified psychiatrist who attended the University of Iowa Medical School and completed her psychiatry residency and child and adolescent psychiatry fellowship at Walter Reed National Military Medical Center.  She has extensive experience treating active-duty service members, family members of active duty and the veteran population.  She feels comfortable working with a wide range of age groups and enjoys treating challenges with anxiety, mood, sleep, and concentration.

Dr. Nelson believes that the key to success in mental health care is being able to establish a trusting and open relationship between psychiatrist and patient.

While initial sessions include the need to gather background information about the patient overall as well as the symptoms of concern, subsequent sessions are focused on learning the impact of the treatment.

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Michelle Hamilton is a Board-Certified Psychiatric Mental Health Nurse Practitioner with a special interest in the care of adults with mood disorders, anxiety disorders, and PTSD. She earned her Master of Science Degree from The Ohio State University and her Bachelor’s Degree in Nursing from The Oregon Health & Science University in Portland, Oregon. Her background includes both inpatient and outpatient psychiatry, crisis stabilization, and Consult-Liaison Psychiatry. Michelle has a passion for incorporating a holistic, evidenced-based approach to improve the mental health needs of each individual client through medication and therapy while emphasizing practical lifestyle changes such as the incorporation of exercise, healthy nutrition, and stress management techniques.

Dr. Swagato Bhattacharyya has completed his residency training at Northwell and is a board certified psychiatrist. Dr. Bhattacharyya takes a holistic approach to patient care, establishing strong physician-patient relationships built on trust, respect, and communication. He primarily focuses on medication management and also provides supportive psychotherapy. Treatment sessions will be tailored to work towards a common goal to optimize one's mental well-being. Dr. Bhattacharyya graduated magna cum laude from undergraduate Binghamton University, received his medical degree from NYIT College of Osteopathic Medicine, and completed his residency in psychiatry at Northwell Mather Hospital. He has trained in various settings, including adult/adolescent psychiatric units and specialty clinics, and has experience in telepsychiatry visits. Dr. Bhattacharyya has experience in treating numerous mental conditions, including depressive disorders, bipolar disorder, anxiety disorders, ADHD and OCD. Dr. Bhattacharyya also has experience treating patients of diverse cultures, having worked in psychiatric settings in the NYC metro and Long Island area.‍

Dr. Absar Tahir is an adult psychiatrist double-boarded in psychiatry and internal medicine who specializes in evidence-based, holistic, and individualized care. He graduated from the University of Alabama at Birmingham, where he earned both his undergraduate and medical degrees. Dr. Tahir completed sequential residency training in both internal medicine at the Mayo Clinic in Rochester, Minnesota, followed by psychiatry at Emory University in Atlanta, Georgia. Dr. Tahir integrates his knowledge of psychiatry and internal medicine to address the complex interplay between mental and physical health, ensuring a comprehensive and thoughtful approach to diagnosis and treatment. Throughout his career, he has helped patients from all walks of life, from diverse backgrounds, with a compassionate and empathetic treatment style. He strives to ensure his patients feel their voice is heard while working collaboratively towards achieving their treatment goals. As a psychiatrist, he specializes in the treatment of depression, anxiety disorders, bipolar disorder, obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), and attention-deficit/hyperactivity disorder (ADHD). He is also highly experienced in treating psychiatric problems in patients with medical comorbidities.