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Jon-Kar Zubieta, MD

Staff Psychiatrist
Languages
English
Spanish
SPECIALTIES
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
LGBTQIA+
Postpartum Depression

Education and training

  • Facultad De Medicina (Bilbao, Spain) (Doctor of Medicine)

Get to know

Jon-Kar Zubieta, MD

Dr. Jon-Kar Zubieta is a board-certified psychiatrist and nuclear medicine physician whose work bridges neuroscience and clinical care. He focuses on understanding how the brain regulates motivation and stress, applying this knowledge to mood disorders, pain, and substance use. With extensive experience in functional imaging, Dr. Zubieta explores how neurobiological mechanisms shape emotional and physical well-being.

Dr. Zubieta takes a collaborative and evidence-based approach to care. He values patient perspectives and prioritizes creating a supportive environment where patients feel heard. His goal is to tailor treatment plans that address both the psychological and biological aspects of mental health conditions.

Dr. Zubieta begins with a thorough assessment of each patient’s history, symptoms, and goals. He integrates clinical evaluation with insights from neuroscience and imaging research when relevant. Together with patients, he develops a personalized treatment plan that may include therapy, medication, or combined approaches, continually adjusting strategies to optimize outcomes.

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Brett Abernethy, MD

Staff Psychiatrist

Background and credentials    

Dr. Abernethy is a board-certified psychiatrist who received his medical  degree from the University of Texas Medical School at Houston. He completed  his internship at UT Southwestern in Dallas and earned a Master's of Public  Health in Epidemiology and Occupational and Environmental Health from Texas  A&M. He completed his psychiatry residency training at the University of  Oklahoma Health Science Center. Dr. Abernethy has over 12 years of experience  practicing psychiatry in various outpatient settings, including private  practice and community mental health centers in Texas and Oklahoma,  specifically reaching underserved communities. He has treated a broad  spectrum of mental health symptoms among diverse populations, addressing  issues ranging from mood and anxiety disorders to behavioral manifestations  of Autism and other developmental disorders.    

Treatment approach    

Dr. Abernethy utilizes a collaborative and patient-centered approach to  psychiatry, focusing primarily on medication interventions that align with  each patient's unique treatment goals and clinical needs. He emphasizes  cooperation with patients to effectively treat and reduce mental  health-related symptoms. His practice centers around medication management,  supplemented by supportive treatments tailored to individual needs. Depending  on each patient’s circumstances, he may recommend additional support from  individual, family, or group counselors and therapists to achieve optimal outcomes.    

What you can expect in a first visit

In an initial visit, patients can expect a thorough, collaborative  discussion focused on understanding their symptoms, goals, and clinical  needs. Dr. Abernethy will evaluate the patient's condition to determine  appropriate medication interventions and discuss personalized treatment  recommendations. Typical follow-up visits are approximately 20-30 minutes in  length. Depending on the severity and complexity of a patient's situation,  referrals to additional counseling or therapy may also be suggested.    

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.

Shaneika Lindsay, PMHNP

Staff Psychiatric Nurse Practitioner

Shaneika Lindsay, PMHNP, is a board-certified psychiatric nurse practitioner dedicated to providing personalized and empathetic care to those in need of mental health care. Her academic journey began with a B.S. in Biology from the University at Albany. She later received her B.S. in Nursing from Pace University and attained her Psychiatric Mental Health Nurse Practitioner M.S. from Hunter-Bellevue School of Nursing, graduating magna cum laude. Shaneika's practice focuses on medication management. Occasionally, Shaneika may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. For the last seven years, Shaneika has diligently provided care to our nation's veterans, working on a dual diagnosis inpatient psychiatric unit in the VA New York Harbor Healthcare System. In her time at the VA, she has gained extensive experience in managing substance abuse and co-morbid psychiatric disorders. In addition, while attending Hunter College, she completed a yearlong clinical rotation at Casa Promesa, a mental health outpatient and inpatient facility that services some of the most vulnerable and underserved populations in the South Bronx. As a Nurse Practitioner, her primary focus is holistic care, taking into consideration all physical, psychological, interpersonal, and environmental factors when creating unique treatment plans. She strongly believes that all of these factors are interconnected and play a significant role in any individual's mental health and vitality. Shaneika's goal is to work with clients to create a safe, non-judgmental, and collaborative treatment environment that promotes sustained healing and positive self-development.

Paula Wilt, MD

Staff Psychiatrist

Dr. Wilt is board certified in adult psychiatry. She earned her medical degree from Louisiana State University in New Orleans, where she also completed her four-year residency in psychiatry. Dr. Wilt takes a biopsychosocial approach to mental health and has over 13 years of experience with an array of mental health diagnoses including Depression, anxiety, ADHD, PTSD, bipolar disorder, and sleep disorders. Dr. Wilt enjoys spending time getting to know her patients and working hand in hand with them to accurately diagnose and treat the symptoms they are experiencing. Dr. Wilt employs a holistic approach to mental health with a focus on incorporating medication management and supportive therapy to improve her patients' quality of life.‍

Ruben Mendez, MD

Staff Psychiatrist

Dr. Mendez obtained his medical degree from the University of Texas Medical School in Houston. He subsequently completed his Psychiatry residency training at the same institution, UT Medical School in Houston. Dr. Mendez has extensive training in the field and is board certified in Adult Psychiatry by the American Board of Psychiatry and Neurology. After professional training, Dr. Mendez has had vast experience of 15 years primarily in the outpatient setting including ample experience with telemedicine services to patients. He has extensive experience in diagnosing and treating adult patients dealing with attention deficit disorders and a wide spectrum of adjustment and anxiety disorders. Dr. Mendez has a special interest in the treatment of mood disorders from Major Depression to Bipolar spectrum disorders. Dr. Mendez prioritizes the development of great communication, mutual understanding and trust with his patients as he finds these elements to be key to a successful treatment. He establishes his treatment plans upon evidence-based guidelines and encourages a holistic approach for optimal well-being. Through effective medication management and supportive psychotherapy, Dr. Mendez leads his patients to optimal mental health. He encourages patients to strive to develop fulfillment and optimal functionality in their life's roles.

Anastasia Ruiz, MD

Staff Psychiatrist

Dr. Ruiz is a compassionate psychiatrist specializing in adult and maternal mental health. She develops personalized treatment plans to address anxiety, depression, bipolar disorder, ADHD, OCD, PTSD, PMDD, and perinatal conditions. Her goal is to help patients reconnect with their values and live balanced, fulfilled, and meaningful lives.

Her passion for medicine began in childhood, inspired by curiosity about the mind and body. She earned an Honors Chemistry degree with  magna cum laude and completed her medical training and psychiatry residency at Texas Tech University Health Sciences Center. With a strong scientific foundation, Dr. Ruiz understands the role of medications, and embraces holistic healing through connection, gratitude, and spirituality.

Dr. Ruiz has experience in diverse clinical settings and has received national awards including the AWP International Fellowship and ADMSEP Innovations Award. She is dedicated to advancing maternal mental health screening and treatment through clinical care and education.

Dr. Ruiz combines pharmacotherapy (medication) with psychotherapy to create individualized treatment plans. Therapy provides powerful tools to manage thoughts, emotions, and behaviors that support balanced brain chemistry. Research shows that medication helps restore this balance more quickly and effectively, especially in moderate to severe cases.  

Dr. Ruiz likens medication for the brain to fertilizer for a garden. Imagine your mental health as a vibrant garden—when well-nourished, it can thrive with resilience, beauty, and balance. But when symptoms like depression, anxiety, ADHD, or mood instability take hold, they act like invasive weeds, crowding out healthy growth and making it hard to enjoy the space. Medication acts like fertilizer, strengthening the garden’s natural systems so the healthy parts can reclaim their place and flourish. Just as some gardens need only seasonal care while others require more consistent tending, medication plans are personalized to support each person’s long-term mental wellness. When the garden is healthy, there's more room to grow, connect, and fully enjoy life.

With a strong background in chemistry and pharmacology, Dr. Ruiz prioritizes educating her patients about how medications work and why they can be helpful. She believes patients should take an active role in understanding their diagnosis and treatment. Her approach emphasizes diagnostic clarity, medication management, patient education, and brief psychotherapy based on cognitive behavioral therapy (CBT) and acceptance and commitment therapy (ACT).

Your first appointment is a supportive, in-depth conversation to share your story, challenges, and goals. Dr. Ruiz will review your medical and psychiatric history and assess symptoms using a whole-person approach that considers biological, psychological, and social factors.

Together, you’ll develop a personalized plan that may include lab work, medication, and therapy. Initial visits last 60 minutes for thorough evaluation; follow-ups typically last 20–30 minutes, focusing on medication management and brief therapy. If needed, Dr. Ruiz can refer you to in-house or community therapists for add-on therapy support.  

Throughout your care, Dr. Ruiz prioritizes shared decision making to ensure you feel informed, empowered, and supported.

Ernesto Gonzalez, MD

Staff Psychiatrist

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.

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Specialties
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
LGBTQIA+
Postpartum Depression
States
Massachusetts
New York
Languages
English
Spanish
Takes insurance
Virtual visits
years experience