Michael Underriner, MD

Dr. Maxim Chasanov, MD, brings over 30 years of experience in both inpatient and outpatient psychiatric settings. He has held leadership roles, including serving as Medical Director across various clinical programs. Dr. Chasanov completed his undergraduate studies at the University of Chicago and earned his medical degree from Loyola University Stritch School of Medicine in Chicago, Illinois. He completed his residency at Loyola University Medical Center, where he was appointed chief resident during his final year.

Dr. Chasanov values open, honest communication and takes a collaborative approach to care. He partners with patients to identify clear treatment goals and uses symptom screener tools to objectively track progress. He strives to create a warm, supportive, and empathetic environment where patients feel heard, respected, and actively engaged in their treatment journey.

In the first session, Dr. Chasanov works to gain a thorough understanding of each patient’s history, current concerns, and long-term goals. He then develops a personalized treatment plan aligned with those goals. His approach balances symptom improvement with medication tolerability and incorporates therapies that further enhance outcomes.

Patricia Grendell is a board-certified Psychiatric-Mental Health Nurse Practitioner who provides mental health care using a personalized, holistic approach. Patricia specializes in psychiatric evaluation and medication management along with psychotherapy and integrative interventions. Prior to receiving education and training in Nursing at New York University and Case Western Reserve University, Patricia earned a Master of Social Work from Boston College with a focus on health and mental health.  

Patricia specializes in working with adults experiencing a wide range of acute and chronic stressors and mental health symptoms. Patricia tailors' treatment to the goals, needs, and comfort level of each individual at her or his own pace. Patricia builds connections with patients so that they feel heard and understood, and partners with each individual to determine the most appropriate treatment strategies that maximize comfort, safety, and positive results.  

Over the past ten years as a Nurse Practitioner in outpatient and inpatient environments, Patricia has helped patients improve and overcome conditions including depression, anxiety, OCD, PTSD, ADHD, and insomnia. Using a combination of medication management, individual therapy, and psychoeducation, Patricia develops individualized treatment plans centered around patients’ priorities and safety to achieve improvements in health and quality of life.

Dr. Jennifer Yen is a double board-certified child, adolescent, and adult psychiatrist who has practiced in a variety of settings, including private, community, and academic medicine. She obtained her medical doctorate and general psychiatry residency at the University of Texas Medical School at Houston before completing her child and adolescent psychiatry fellowship at Baylor College of Medicine. She is currently a Clinical Professor of Psychiatry and Behavioral Sciences at Baylor College of Medicine and has authored multiple peer-reviewed publications on pediatric mental health. Dr. Yen is also a Distinguished Fellow of the American Academy of Child and Adolescent Psychiatry and has been on the editorial board of Clinical Psychiatry News. Dr. Yen believes in a collaborative treatment approach that includes use of pharmacology, therapeutic interventions, and support networks. While versed in a broad range of mental disorders, she is most passionate about anxiety, depression, minority mental health, and acculturation and intergenerational conflicts. She enjoys finding creative ways to address ongoing treatment issues, and utilizes digital media in the treatment setting.

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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Dr. Clayton Stone (he/him) is a native of the Tennessee mountains who specializes in treating both children and adults. He completed a fellowship in Child and Adolescent Psychiatry at Washington University in St. Louis and a general psychiatry residency in San Antonio, Texas. Dr. Stone has worked in academic medical centers, public schools, state hospitals, a transgender health clinic, and a residential eating disorder center. He is experienced in caring for LGBTQIA+ individuals and underserved rural communities.

Dr. Stone offers a friendly, nonjudgmental space where patients feel supported and empowered. His collaborative style emphasizes respect, transparency, and shared decision-making. He is especially passionate about helping people navigate stress, build self-esteem, and develop healthy relationships. Depending on patient needs, he uses tools like talk therapy, lifestyle changes, parent coaching, and medication management to support healing.

Sessions begin with a detailed review of each patient's history, current concerns, and goals. Dr. Stone then works together with the patient to create a personalized care plan that may include therapy techniques, medications, psychoeducation, or coping strategies. When treating children or teens, he often includes family involvement or parent coaching to promote meaningful progress.

Dr. Lemaire Leo Pierre is a board certified adult psychiatric provider with over 10 years of experience. He has additional years working in the medical field as a physician assistant. Dr. Pierre's practice entails medication management accompanied by supportive psychotherapy. He frequently encourages other forms of psychotherapy with a counselor to maximize treatment outcomes. After completing medical school at Central America Health Science University, he returned to New York City and completed his psychiatry residency at New York Medical College Program at Metropolitan Hospital Center. Subsequently, he moved to Minnesota and worked with Park Nicollet Health Service/HealthPartners. He had been there for 10.5 years, where he oversaw a successful psychiatric practice and helped his patients who had been struggling with their conditions. Dr. Pierre is a member of the American Board of Psychiatry and Neurology, in addition to the American Psychiatry Association and State Psychiatry Association. He also enjoys attending conferences and reading journals to learn about cutting-edge treatments so that he is updated on the most recent FDA-approved medications.