Alexander Van-Den-Ende, DO

Background and credentials

Dr. Nereida Gonzalez-Berrios is a general psychiatrist fluent in English and Spanish. She earned her bachelor’s degree in Microbiology from the University of Puerto Rico and her medical doctorate from Ponce School of Medicine (now Ponce Health Sciences University). She completed her General Psychiatry Training Program at the University of Puerto Rico Medical Sciences Campus, graduating in 2008. After practicing privately in Puerto Rico, she relocated to Texas, where she worked for over five years at the Michael E. DeBakey VA Health System, providing mental health care to veterans. She has also gained extensive experience in telemedicine, working both within the VA system and as a locum tenens provider.

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Treatment approach

Dr. Gonzalez-Berrios has extensive experience treating a wide range of psychiatric conditions, including mood disorders, anxiety disorders, psychotic disorders, intellectual impairment, ADHD, eating disorders, PTSD, and personality disorders. She integrates traditional psychiatric treatment with a holistic wellness approach, drawing on her background as a motivational speaker, wellness coach, certified personal fitness trainer, nutrition coach, and weight-loss specialist. Her approach emphasizes improving overall mental and physical well-being through personalized treatment plans that incorporate psychiatric care, wellness strategies, and lifestyle modifications.

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What you can expect in a first visit

Patients can expect a comprehensive psychiatric evaluation where Dr. Gonzalez-Berrios carefully assesses their symptoms, medical history, and personal wellness goals. She takes a collaborative and patient-centered approach, ensuring that treatment is tailored to each individual’s mental and physical health needs. As an experienced telemedicine provider, she offers accessible and flexible mental health care, combining medication management and holistic wellness strategies to help patients achieve lasting well-being.

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

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Before pursuing medicine, Dr. Kenneth Ethan Lai explored a range of passions. After earning dual degrees in Biology and Biochemistry from the University of California, Riverside, he opened a popular Riverside eatery featured on The Food Channel. He later transitioned to the IT industry, earning a master’s degree and certifications, before answering his true calling in medicine, graduating from Saint Matthews University School of Medicine.

Dr. Lai believes psychiatry combines science and the art of medicine. Patients value his professionalism, patience, empathy, and attentive listening. He acknowledges the many choices patients have in providers and strives to create a welcoming, collaborative, and supportive environment for everyone seeking care.

Dr. Lai treats both adults and children/adolescents with expertise in psychopharmacology, psychotherapy, addiction, geriatrics, and dual-diagnosis care. He is trained in TMS and ECT, is a Certified Suboxone Prescriber, and offers consultations and treatment through office-based or telemedicine visits. His approach is tailored to each patient’s needs, integrating compassionate care with evidence-based treatment.

Dr. Alfers is a board-certified psychiatrist specializing in adult psychiatry. He has been practicing for over 11 years. He completed his undergraduate education at Virginia Tech, graduating Cum Laude with degrees in Biology and Chemistry. Following graduation, he attended a research internship at the National Institutes of Health where he received a Post-baccalaureate Intramural Research Training Award. Dr. Alfers completed his medical degree from the Western University of Health Sciences in Pomona, CA. He completed his General Psychiatry Residency at Georgetown University, where he served as Chief Resident. After residency, he entered private practice in McLean, VA. Dr. Alfers takes a comprehensive approach to patient care. He integrates biological, psychological, and environmental factors into treatment planning. He focuses on developing a meaningful therapeutic relationship and providing medication interventions for specific treatment goals. Dr. Alfers provides interpersonal psychotherapy in conjunction with medication management services. Dr. Alfers has a special interest in the treatment of multiple mental health conditions, including depression, anxiety, bipolar disorder, PTSD, ADHD, and OCD. Dr. Alfers treats adults ages 18 to 65 years old. For established patients of Dr. Alfers, please call 917-634-5311 to schedule an appointment and let the care coordinator know you are an established patient.

Mahreen Rashid, PMHNP, has over ten years of experience treating patients with a variety of psychiatric diagnoses across inpatient, intensive outpatient, and outpatient settings. While she has cared for children, adolescents, and adults, her primary focus and passion is supporting adults with their mental health needs. She earned her medical degree and completed her training with a commitment to compassionate, evidence-based care.

Mahreen takes a collaborative approach, working closely with each patient to understand their emotional needs and medication preferences. She values a team-based approach, integrating input from patients and other care providers to create a holistic treatment plan that supports overall well-being.

During initial evaluations, Mahreen gathers a thorough history, including medical background, mental health concerns, and personal goals. She reviews past medication trials, discusses previous experiences with providers, and assesses each patient’s comfort level with new treatments. Together, she and her patients develop individualized plans to support long-term mental health and wellness.

Dr. Shari Sengupta attended the University of OK as a National Merit Scholar and went on to graduate with her MD from Eastern Virginia Medical School. She specialized in Adult Psychiatry at the University of NC Hospitals where she was a chief resident. She received psychotherapy training in insight-oriented and cognitive-behavioral approaches and trained at the Psychoanalytic Institute of the Carolinas. She has 18 years of experience providing medication management and psychotherapy in both private practice and community mental health settings and over 10 years of experience in telepsychiatry providing care to underserved communities. Dr. Sengupta has experience treating a variety of mental health concerns but has a particular interest in depression, anxiety, and mental health in the perinatal period. Her practice focuses on medication management from a holistic perspective. She believes that mental health is the cornerstone of overall well-being and that treatment is a collaborative journey toward improved health and function in life, work, and relationships. She offers culturally sensitive treatment to people from all backgrounds and sexual orientations. As a staff psychiatrist at Talkiatry, her treatment approach focuses on medication management informed by a background in psychotherapy.‍

Michael Huang is a psychiatric mental health nurse practitioner who takes a holistic, collaborative, and non-judgmental approach to mental health care. He graduated from Boston College with his MSN after many years of working in inpatient psychiatry at McLean Hospital in Belmont, MA, and has over a decade of experience in mental health care. He has worked in various outpatient settings, first in Boston and more recently in Las Vegas, gaining extensive experience with individuals from diverse socio-economic and cultural backgrounds.

Michael strongly believes that each person’s struggle is unique, and the solutions and treatments should be individualized based on the person’s goals. Having experienced childhood trauma himself, he is particularly passionate about and experienced in treating C-PTSD, OCD, ADHD, and borderline personality disorder. His focus is on helping others find peace, whether momentary or lasting, in their chaotic and often overwhelming lives.

The first appointment with Michael includes a comprehensive psychiatric evaluation and a discussion about your goals for treatment. While pharmacological treatment may be part of the plan, Michael prefers to focus on the therapeutic aspect of care, as he believes therapy is an essential component of healing. With Michael, you can expect to collaboratively create a treatment plan that you feel comfortable with, rather than simply being told what to do.

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