Gregory Miller, DO

Dr. Juan Carlos Gonzalez is board-certified by the American Board of Psychiatry and Neurology and has 32 years of experience in treating adults. He completed his undergraduate education at Harvard University and earned his medical degree at Baylor College of Medicine in Houston, Texas. He completed his psychiatry residency training at Baylor College of Medicine, where he served as Chief Resident and subsquently was an Associate Professor of Psychiatry for ten years. During his tenure as a faculty member at Baylor, he served as Medical Director for the Baylor Psychiatry Clinic and also maintained a private practice, where he provided psychotherapy and medication management. 

In 2004, Dr. Gonzalez moved to Austin, Texas where he joined the US Veterans Administration, serving in various administrative positions, including Medical Director for the Central Texas VA Outpatient Clinics.

He provides compassionate, evidence-based care to thousands of service members, treating a broad spectrum of psychiatric conditions. Fluent in both English and Spanish, Dr. Gonzalez employs a humanistic approach to patient care, deeply understanding how patients’ past experiences affect their present.

Dr. Gonzalez provides compassionate, humanistic care, recognizing how past experiences shape the present. His treatment integrates medication management with psychoanalytic, cognitive-behavioral, and supportive psychotherapy.

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Anne Marko, LPC, LCMHC, brings over 25 years of experience in psychotherapy, clinical supervision, and behavioral health leadership across outpatient, residential, and integrated care settings. She has significant experience supporting adolescents and adults with trauma, mood disorders, anxiety, life transitions, and complex stressors. Anne values ethical, high-quality care and creates a space where patients feel safe, heard, and understood.

Anne strives to foster a warm, collaborative environment grounded in trust and transparency. She meets patients with curiosity and empathy, using a trauma-informed, evidence-based approach. Known for being calm, supportive, and relatable, she thoughtfully incorporates humor and prioritizes open communication to ensure patients feel genuinely supported throughout therapy.

Anne begins by building a strong therapeutic alliance, exploring patients’ histories, concerns, and goals. She develops individualized treatment plans that reflect each person’s values and needs. Experienced in telehealth and in-person care, she emphasizes insight, emotional safety, and practical tools, regularly checking in and adjusting plans to promote long-term growth, resilience, and empowerment.

Dr. Hajer Ben Cheikh earned her medical degree from Eastern Virginia Medical School, where she worked with refugee populations and participated in global health initiatives. She completed her psychiatry residency at MedStar Georgetown University Hospital, serving as inpatient chief resident. Dr. Ben Cheikh has experience across the full continuum of psychiatric care, including higher levels of care, collaborative care, and outpatient settings. She has a particular interest in perinatal mental health.

Dr. Ben Cheikh values open communication, transparency, and collaboration, and takes a friendly, supportive approach to patient care. She practices evidence-based medicine with a thoughtful, minimalist approach to pharmacologic treatment, often favoring single agents that can address multiple concerns when clinically appropriate.

Her approach to care is holistic, integrating psychiatric diagnoses, comorbid conditions, social context, and lifestyle factors. Sessions include supportive psychotherapy, incorporating techniques from other modalities such as cognitive behavioral therapy (CBT), and psychodynamic approaches as appropriate. Initial visits emphasize diagnostic clarity and collaborative goal-setting, while follow-up sessions focus on patient priorities, shared decision-making, and personalized strategies that support meaningful, sustainable progress.

Margaret Ngumi, MSN, APRN, FNP-C, PMHNP-BC, is a dual board-certified Psychiatric Mental Health and Family Nurse Practitioner with over 20 years of experience in healthcare. She began her career as a Family Nurse Practitioner and later pursued a post-master’s certification in psychiatry to address the growing need for accessible mental health services. Margaret has extensive experience in both inpatient and outpatient settings, treating conditions such as depression, anxiety, PTSD, mood disorders, and substance use disorders.

She takes a collaborative, patient-centered approach to care, creating a safe and supportive environment where individuals feel heard and empowered. With a strong emphasis on holistic care, Margaret considers all aspects of a patient’s well-being—including lifestyle, relationships, and overall health. Whether through medication management, therapy, or lifestyle modifications, she is committed to helping patients achieve meaningful and lasting improvements in their mental health.

Margaret begins with a comprehensive psychiatric evaluation to understand each patient’s history, concerns, and goals. She then works closely with them to develop a personalized care plan that may include medication, therapy, and evidence-based lifestyle interventions. She prioritizes open communication, patient education, and ongoing collaboration to ensure treatment remains effective and evolves with each patient’s needs. Through her compassionate and evidence-based approach, Margaret is dedicated to helping individuals find balance and improve their overall quality of life.

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Dr. Rebecca Crosbie is a board-certified adult psychiatrist and has been practicing in outpatient psychiatry for nearly 7 years. Her practice focuses on medication management, and she typically offers medication management combined with supportive therapy or Cognitive Behavioral Therapy (CBT) in 30 minute follow-up visits. If Dr. Crosbie feels you would benefit from working with a dedicated talk therapist, she may encourage you to pursue this or refer you in order to achieve the best outcome. Dr. Crosbie is a graduate of Michigan State College of Human Medicine. She completed her psychiatry residency at Pine Rest/Michigan State University in Grand Rapids, MI. She has previously worked as an outpatient psychiatrist and in tele-psychiatry. She has a lot of experience treating patients with a broad array of mental health conditions, including: anxiety disorders, depression, OCD, bipolar disorder, and ADHD. She also treats combined mental health diagnoses such as ADHD plus another diagnosis. She also has a lot of experience working with patients who identify as LGBTQI+. Her approach is always to meet the patient where they are and educate and enable patients to make good choices about treatment that are in line with their personal preferences and values.

Wayne R. McIntosh, PMHNP-BC, is a dedicated mental health professional with over a decade of experience in psychiatric care. He earned his advanced nursing degree with distinction from Arizona State University and also holds a Bachelor of Science in Nursing from Grand Canyon University and an Associate of Science in Nursing from Harry S. Truman College. He has been a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) since 2015.

Wayne specializes in family-centered care, working with individuals aged 18 to 65. Whether supporting patients through anxiety, depression, ADHD, or life transitions, he develops personalized diagnostic and treatment plans that may include therapy, coping strategies, and, when appropriate, medication. His approach emphasizes clear communication and collaboration, empowering patients to understand their challenges, apply practical tools, and achieve lasting change.

Throughout his career, Wayne has served as a Psychiatric Nurse Practitioner and Associate Director of Medical Services, leading multidisciplinary teams and promoting accessible, high-quality care. As a Faculty Associate at Arizona State University, he has mentored future nurse leaders, focusing on clinical excellence and patient advocacy. His military background and volunteer work further reflect his commitment to serving diverse populations with compassion and respect.

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