Juliet Nichols-Nicolescu, MD

Dr. Diane Papke holds the position of staff psychiatrist at Talkiatry. After graduating from medical school, she completed internship year in Internal Medicine at St. Joseph's Hospital in Phoenix, AZ, followed by two years of neurology residency at Barrow Neurological Institute before completing Psychiatric residency at Maricopa Medical Center in 2005. She then spent the majority of her time caring for SMI/seriously mentally ill patients with a mantra "propelling people forward to wellness.” Working on the supportive level of care for this population honed her skills to care for the highest level of outpatient care through ACT/assertive community treatment. She has a genuine interest in treating psychiatric disorders including anxiety, depression, PTSD, OCD, ADHD, and most specifically bipolar. She has experience treating medical comorbidities including neurologic disorders. In 2023, she extended her expertise and skills to the general population to include telehealth management of her patients. With a nonsense approach, she prides herself on collaborating with patients to attain their goals of optimum psychiatric health, believing that the cornerstone of a healthy partnership with any patient is a holistic approach. Listening with an open mind and heart while collaborating with her patients to provide the correct medication management and supportive care has always been the key for her. She is looking forward to meeting you!

Dr. Jonathan Hertz is board-certified in adult psychiatry. He completed fellowships in child and adolescent and public psychiatry and has been practicing psychiatry for over 18 years. Dr. Hertz's practice focuses on medication management which is offered with supportive and/or dynamic psychotherapy within 30-minute follow-up sessions. If patients have individual psychotherapists, Dr. Hertz will work collaboratively with these providers within a treatment-team approach to patient care delivery. Dr. Hertz received his medical degree from Tufts University School of Medicine in Boston. He remained in Boston to complete a residency in adult psychiatry at Cambridge Health Alliance and a fellowship in child and adolescent psychiatry at Children's Hospital Boston. Dr. Hertz subsequently returned to his hometown of NYC and completed a fellowship in public psychiatry. Dr. Hertz has clinical and administrative experience in the field of psychiatry. These positions include ACT Team community psychiatrist, director of adult outpatient clinic, and medical directorship in behavioral health within community hospitals. With training in child/adolescent, adult, and public psychiatry, Dr. Hertz has a developmental approach to mental health care. That is, he collaboratively explores the bio-psychosocial factors that may have influenced the development of mental disorders. Dr. Hertz believes an ecological approach enables a broader view of the multip

Mary Poupon is an experienced board certified psychiatric APRN/psychiatric nurse practitioner with over 30 years' experience in her field. She completed her graduate work at Columbia University and is published in her field. Her practice sites have included inpatient hospital treatment, partial hospital programs, in-home programs, outpatient clinics and alternative therapy including equine assisted therapy.  She was the program director and clinician with the Ryan White Mental Health Program in New York providing innovative mental health treatment for adolescents and adults living with HIV/AIDS in the boroughs of Manhattan, Queens, Brooklyn and the Bronx.  In 2013 she became certified as an equine assisted psychotherapist and served as the Director of Mental Health at Embrace Hope in Sandy Hook, CT. She was appointed as the Executive Director of Embrace Hope in 2017. Embrace Hope provided treatment to children, adolescents and adults who were victims of trauma related to the shooting at the Sandy Hook Elementary School. She presented a TED x talk in 2018 regarding her work with victims of trauma. She has provided treatment in the outpatient setting for children, teens, and adults. She has provided treatment to young adults at the Covenant House New York shelter program for homeless young adults.

Mary believes the human spirit is resilient. There are many challenges in the lifespan and self-care is paramount to success.

Mary provides psychiatric consultation and assessment and provides a pathway to change. Treatment may include medication management, therapy, and coping skills to assist with life challenges. Mary believes treatment is a partnership and believes in establishing mutually agreed upon goals.

Mary's process for working with patients begins with active listening. The assessment begins with the patient describing why they are seeking engagement in behavioral health treatment at this time. She will complete a psychiatric assessment and evaluation and establish mutually agreed upon goals for treatment. She offers medication management in conjunction with supportive therapy in 30-minute follow-up visits. Mary believes therapy and medication management if indicated together provides the best treatment outcomes.

Dr. Gulati is a board-certified adult psychiatrist who has been in practice for over 10 years. She has worked in inpatient units, private practice, and community mental health, as well as served as Chief Medical Officer of a large psychiatric hospital. In 2018 she was awarded the Charleston Choice Award for Best Psychiatrist in Charleston, South Carolina. She currently resides in South Florida. Dr. Gulati's practice centers around treating the whole patient: mind, body, and spirit. She believes the judicious use of psychiatric medications, coupled with psychotherapy and alternative treatments such as meditation and yoga, can bring about transformative changes in the lives of those suffering from depression, anxiety, and other mental conditions and life issues. Dr. Gulati graduated with Honors in Psychology from The University of Florida, received her medical degree from The University of South Alabama School of Medicine, completed a clinical postdoctoral research fellowship at Boston University School of Medicine, and completed her Psychiatry residency training at The University of North Carolina. She is currently obtaining her MBA. After residency, she worked as a psychiatric hospitalist at Trident Medical Center in Charleston and has also worked in private practice. Most recently she served as Chief Medical Officer for an 80-bed psychiatric hospital, Coral Shores Behavioral Hospital in Stuart, FL. In addition to general adult psychiatry, Dr. Gulati received extensive training in one of the nation's largest women's mood disorder programs at The University of North Carolina Chapel Hill and enjoys treating peripartum and postpartum mood and anxiety disorders. She is also well trained in addiction medicine and received additional training in buprenorphine use for opioid addiction.

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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Megan O’Brien is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with experience in inpatient, outpatient, and emergency mental health settings. She earned her NP degree from UCSF, the top-ranked program in the country at the time. In addition to clinical work, she enjoys teaching and is passionate about training the next generation of compassionate psychiatric nurse practitioners.

Megan believes in meeting patients where they are, offering empathy, respect, and acceptance. She values open communication and sees treatment as a collaborative process. Her approach empowers patients to take the lead in their care while she supports them as a partner and guide along the way.

Megan begins by listening carefully to each patient’s story and asking relevant questions to understand their needs. Together, she and the patient build a tailored treatment plan that aligns with their goals. Her focus is on reducing mental health symptoms and helping people experience greater freedom and flexibility in their lives.