Jenna Hartman, DO

Natisha Joseph is a Licensed Mental Health Counselor (LMHC) with a Master of Science in Mental Health Counseling from Mercy University and certification as a Trauma Specialist. Her career began even before completing graduate school in 2014, with more than 10 years of experience providing services to youth in residential treatment. She has also served adults with developmental and intellectual disabilities as a Residential Coordinator for 8 years, supported patients in palliative care for 5 years, and has spent the last 4+ years as a dedicated Mental Health Counselor in both inpatient and outpatient settings.

Natisha values open communication and collaboration, working with clients to set clear treatment goals. She creates a warm, respectful, and nonjudgmental environment where individuals feel supported and validated in their therapeutic journey. With a structured yet flexible approach, she helps patients navigate challenges such as trauma, emotional dysregulation, and self-care while fostering healing, growth, and problem-solving.

In the first session, Natisha takes time to understand each patient’s history, concerns, and goals. She builds therapeutic relationships rooted in trust, confidentiality, and respect, and co-develops individualized treatment plans tailored to each person’s needs. Drawing from CBT, ACT, and trauma-informed interventions, she provides active treatment through weekly or biweekly sessions, reviewing and adjusting goals to support ongoing progress.

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.

Background  and credentials    

Dr. Andrew Lelin is a board-certified Psychiatrist in Adult Psychiatry. He  received his bachelor's degree from Johns Hopkins University and a master's  in Medical Humanities, Compassionate Care, and Bioethics from Stony Brook  University. Dr. Lelin earned his medical degree from Hofstra-Northwell School  of Medicine and completed his residency at Rutgers-Robert Wood Johnson School  of Medicine, where he specialized in advanced psychopharmacology with diverse  patient populations. He also has extensive training and experience in  psychotherapeutic modalities, including psychodynamic therapy,  cognitive-behavioral therapy, habit-reversal therapy, and cognitive  processing therapy. Following his training, Dr. Lelin provided inpatient  consultation and crisis intervention services in New York City.    

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Treatment approach    

Dr. Lelin employs a compassionate, humanistic approach designed to align  closely with his patients' personal goals and values. His method integrates  advanced psychopharmacology with psychotherapeutic techniques such as  psychodynamic, cognitive-behavioral, habit-reversal, and cognitive processing  therapies. He aims to carefully balance diagnosis, avoiding both  overdiagnosis and underdiagnosis, to ensure precise and tailored care. Dr.  Lelin’s approach is particularly effective in addressing conditions like  anxiety, depression, bipolar disorder, OCD, trauma-related issues, and other  psychiatric conditions.    

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What you can expect in a first visit    

During the initial visit, patients can expect a comprehensive, detailed  evaluation designed to thoroughly understand their individual experiences and  needs. Dr. Lelin prioritizes establishing a compassionate and comfortable  environment where patients can openly discuss their concerns and goals. This  initial assessment is followed by meticulous and thoughtful follow-ups,  providing clarity and direction in the treatment process.    

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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.

Sonya R. Isler, PMHNP-BC, began her nursing journey over 30 years ago in a state psychiatric hospital in Goldsboro, NC, inspired by the poised nurse she admired at church as a child. Her path includes roles as LPN, RN, BSN, and multiple advanced practice degrees. Sonya has worked in inpatient and outpatient settings, VA clinics, and private practices. She also serves as a preceptor for PMHNP students at her alma mater, the University of North Carolina at Chapel Hill.

Sonya creates a welcoming, respectful space where patients feel safe to communicate openly. She practices active listening and values patient input when setting therapy goals. Her approach is holistic—treating the whole person—and she encourages collaboration, helping patients feel seen, heard, and empowered in their care.

Sonya reviews a patient's history before each session and begins with clear introductions and goal setting. She invites open discussion of concerns and tailors' treatment plans with patient input. She often incorporates CBT, motivational interviewing, and solution-focused therapy into care, promoting growth through supportive, personalized strategies.

Dr. Priya Mukhopadhyay is a board certified adult psychiatrist. She completed her psychiatry residency training at Richmond University Medical Center in NYC. She has practiced in various settings over her career including inpatient, outpatient, comprehensive psychiatric emergency program (CPEP), and the consult liaison service to name a few. She has experience providing patients with compassionate psychiatric care treating patients with anxiety, depression, bipolar disorder, PTSD, family and relationship issues, as well as other mental health issues. Dr. Priya's practice focuses on medication management. Typically, she offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. The philosophy of her practice is to collaborate with patients to meet their specific needs and make an impact in various stages of their lives. Growing up in NYC as a South Asian American female in medicine, Dr. Priya strongly values diversity and compassion and strives to make her patients feel heard, validated, and comfortable at all times.

Justin Hampton is a Licensed Clinical Social Worker with over 15 years of experience across a wide range of mental health and social service settings, including academic outpatient clinics, community health centers, residential programs, clinical research, the VA, EAP services, and HIV/AIDS service organizations. He earned a Bachelor of Arts in Psychology from Saint Louis University and a Master of Social Work in Clinical Social Work/Mental Health from Washington University in St. Louis.

Justin has a particular passion and specialty in working with the LGBTQ population. He also enjoys helping patients address depression and mood concerns, anxiety disorders, trauma, self-criticism and shame, grief and loss, major life transitions, social discontent, and medical conditions such as HIV/AIDS. He works with adults across the lifespan and strives to create an affirming and inclusive therapeutic environment.

Justin’s work with each patient is individualized and guided by their needs and collaboratively defined goals. Patients can expect a warm, authentic, and direct therapeutic style. His approach is primarily skills-based, most often drawing from Cognitive Behavioral Therapy, within a client-centered and attachment-focused relationship. Therapy often explores how perspective, assumptions, and self-narratives contribute to distress, with practical action plans to support growth. Justin views therapy as a collaborative process aimed at meaningful change and a more fulfilling, values-driven life.