Depression Psychiatrists in California

Dr. Kristin Ratz is a Board-Certified psychiatrist who is an expert in the diagnosis, treatment, and prevention of mental, emotional and behavioral disorders. She specializes in medication management combined with supportive therapy during 30-minute follow-up sessions. Dr. Ratz recognizes that each patient is unique and believes in an environment of collaboration, in which the patient and psychiatrist work together in order to develop the best individualized treatment plan. A California local, Dr. Ratz obtained her undergraduate education at University of California, Davis, graduating magna cum laude with a degree in Human Development. She then attended medical school at Loma Linda University School of Medicine, obtaining her Medical Doctorate. Following this, she completed her adult psychiatry residency training at the distinguished University of California, Irvine. Dr. Ratz has worked in a diverse range of healthcare settings, including county and community clinics, and is very experienced in telepsychiatry. She pays close attention to not only an individual's emotional state, but also their physical, spiritual, and social well-being, in order to provide her patients with exceptional holistic care.

Dr. Daniel Weiss is a double board-certified psychiatrist in adult and forensic psychiatry. His expertise is in diagnosing and treating psychiatric conditions, including depression and bipolar spectrum disorders, anxiety, stress and adjustment problems, maternal mental health, OCD, and other disorders. In addition, he has extensive experience working with individuals from diverse backgrounds, college and graduate students, creative professionals, and a range of working adults. Through a supportive psychopharmacologic approach, Dr. Weiss strives to provide a comfortable experience in which doctor and patient work to understand the presenting problems, reduce symptoms, and optimize functioning. In addition, Dr. Weiss encourages concurrent therapy and will communicate with that provider in a collaborative care arrangement. Dr. Weiss previously served as an attending psychiatrist on the staff of Montefiore Medical Center and was formerly a faculty member at the Albert Einstein College of Medicine. Before joining Talkiatry, Dr. Weiss spent a decade working at The New School as the university's staff psychiatrist.

Dr. Kathryn Bertacchi is board-certified in both adult and child & adolescent psychiatry. Originally from California, she earned her medical degree from University College Cork in Ireland and completed residency and fellowship at Emory University. She has practiced in varied settings, including developing specialized clinics in eating disorders and gender-affirming care. She is a member of several professional organizations including AACAP, APA, and WPATH.

Dr. Bertacchi fosters an inclusive, nonjudgmental environment where patients feel safe to be themselves. She approaches care with curiosity, compassion, and deep respect for each person’s unique story, aiming to help individuals feel genuinely heard and supported throughout their treatment journey.

In early sessions, Dr. Bertacchi works collaboratively to understand patients' lives, goals, and challenges. While her focus is medication management, she integrates cognitive-behavioral, humanistic, and supportive techniques. She may recommend additional therapy as needed and particularly values working with youth and adults from diverse backgrounds.

Dr. Kristina Kurtz is a board-certified adult psychiatrist who graduated from Lake Erie College of Osteopathic Medicine in Erie, Pennsylvania. She completed a Transitional Internship at St. Joseph Mercy Hospital Oakland in Pontiac, Michigan, and Psychiatry Residency training at Henry Ford Health System in Detroit, Michigan. During her residency training, she held multiple professional leadership positions, including ethics committee consultant, associate chief resident, and chief resident. She has experience developing residency curriculum, and teaching psychiatry residents and medical students. Prior to relocating to Colorado Springs, Dr. Kurtz served as the Adult Inpatient Service Chief at Henry Ford Kingswood Hospital. She joined Talkiatry after serving as the Medical Director of Behavioral Health at UCHealth Memorial Hospital as well as Regional Medical Director for Colorado for Lifestance Health. Dr. Kurtz is passionate about providing holistic, evidence-based care to both adults and geriatric patients. She believes in providing a well-rounded approach to care which includes both medication management as well as psychodynamic psychotherapy and supportive therapy for a wide variety of disorders including depression, anxiety, PTSD, ADHD, substance use disorders, and bipolar disorder. She believes that medication management is most effective when an environment of shared decision-making exists between the prescriber and the patient and tailors her approach to meet each individual patient's needs.

Dr. George Han is an adult psychiatrist who earned his undergraduate degree in Materials Science and NanoEngineering from Rice University, his medical degree from the University of Texas Southwestern Medical Center, and completed his psychiatry residency training at the University of Mississippi Medical Center. Now based in New York City, Dr. Han brings a broad geographic and cultural perspective, having previously lived in China, Canada, Illinois, California, Texas, and Mississippi.  

Drawing on these diverse experiences, Dr. Han is committed to providing culturally responsive and identity-affirming care, with a particular focus on immigrant communities, LGBTQIA+ individuals, and high-performance professionals. He uses a collaborative, narrative-informed approach that centers each patient’s lived experience and values. His integrative method helps individuals recognize emotional and behavioral patterns shaped by cultural, relational, and systemic factors.  

In clinical practice, Dr. Han combines evidence-based medication management with appropriate psychotherapy techniques and elements of executive coaching. This comprehensive approach supports patients navigating high-pressure environments, helping them achieve greater clarity, resilience, and confidence across both personal and professional domains

Dr. Mustafa Taquee is a board-certified Adult Psychiatrist. After receiving his undergraduate degree from Wayne State University in Detroit, he completed his medical degree at Oakland University William Beaumont in Rochester, MI. He is a graduate of the Adult Psychiatry Residency Program at St. Mary Mercy Hospital in Livonia, MI. As a testament to Dr. Taquee's desire to help patients reach their full potential, he has also completed a psychotherapy fellowship through the Michigan Psychoanalytic Institute. Dr. Taquee believes that every patient brings their own mosaic of experiences embedded in a unique story. He understands that building a strong therapeutic relationship through empathy, compassion, trust, and respect is essential. He enjoys taking time to understand his patient's goals, offer psychoeducation, and create a collaborative plan for treatment with the patient. He believes in a holistic approach to mental health treatment, which includes medication management, supportive and cognitive behavioral therapy techniques, as well as mind-body medicine techniques. He also has a special interest in psychodynamic therapy, an in-depth therapy modality, which he incorporates in all patient interactions and sessions. Due to the diversity and richness of culture in southeast Michigan, Dr.Taquee has experience working with patients from varied backgrounds. He enjoys the challenge such a heterogeneous environment brings and is particularly fond of working with young adults experiencing life transitions. He also has experience working with patients from lower socioeconomic backgrounds, as well as adolescents and geriatric populations.

Dr. Perington is a Staff Psychiatrist with Talkiatry. She previously served in the US Air Force, where she completed her residency training in psychiatry (Lackland AFB) and was the medical director for a small-sized mental health clinic (Hill AFB). Dr. Perington uses a person-centered approach to tailor treatment to the individual, with an emphasis on shared decision making. She prefers to focus on psychotherapy and behavioral interventions as a primary part of the treatment plan, in addition to any indicated medication.

Motivation for change is a large part of the healing process, and for many people recovery doesn't happen with medication alone. Dr. Perington asks all her patients to play an active role in their treatment.

A thorough diagnostic assessment with discussion of the best treatment setting and modality, then regular follow up visits with emphasis on psychotherapy in addition to medication management (if indicated).

Dr. Reaghan Hicks is a double board-certified psychiatrist in General and Addiction Psychiatry. She completed her undergraduate training at The College of Charleston followed by medical school at The University of South Carolina School of Medicine. Dr. Hicks completed Residency in General Psychiatry at The University of Florida College of Medicine in Jacksonville followed by Fellowship in Addiction Psychiatry at The Medical University of South Carolina. Dr. Hicks is an experienced clinician that specializes in treating individuals with a variety of diagnoses including adjustment disorders, depression, anxiety, PTSD, bipolar disorder, ADHD, and substance use disorders.‍She has an approachable style and values building rapport with her patients. She believes it is a privilege to be a part of someone's journey towards recovery and wellness. Dr. Hicks aims to meet each patient where they are while maintaining a nonjudgemental, patient-centered, and evidenced-based treatment approach. Dr. Hicks provides supportive psychotherapy, cognitive behavioral skills, and utilizes motivational interviewing to meet the needs of her patients. She believes effective utilization of therapy skills in conjunction with medication management can help patients meet their individualized treatment goals.

Background and credentials

Dr. John Whittier is a board-certified psychiatrist. He earned his Bachelor of Arts in Molecular, Cellular, and Developmental Biology from the University of Colorado at Boulder and went on to obtain a master’s degree in Medical Science from Loyola University Chicago. He completed his medical training at the Robert Larner, M.D. College of Medicine at The University of Vermont and returned to Colorado for his psychiatry residency at the University of Colorado School of Medicine. While in residency, he specialized in the Psychotherapy Scholars Program and has since gained four years of experience treating psychiatric conditions through telehealth.

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Treatment approach

Dr. Whittier primarily focuses on medication management for general psychiatric conditions. His approach is individualized, ensuring that each patient receives a treatment plan tailored to their unique needs. He integrates supportive therapy, medications, and evidence-based alternative therapies to provide a flexible and comprehensive approach. In addition to his general practice, he maintains a psychodynamic psychotherapy panel where he helps patients explore developmental and relational patterns that contribute to their symptoms. His specialties include treating depression, anxiety, adjustment disorders, PTSD, insomnia, bipolar disorder, and ADHD.

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What you can expect in a first visit

During the first visit, patients can expect a one-hour comprehensive intake during which Dr. Whittier thoroughly evaluates their symptoms, medical history, and personal goals. He provides treatment options that prioritize flexibility, allowing patients to take an active role in their care. Follow-up visits typically last 20 to 30 minutes, focusing on assessing treatment progress and making necessary adjustments. For those engaged in psychodynamic psychotherapy, longer one-hour sessions are available for in-depth exploration of underlying psychological patterns.

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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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Dr. Nida Khan is a board-certified psychiatrist starting her post-graduate practice with Talkiatry. She completed her undergraduate degree in Biochemistry at Smith College, earned her medical degree at New York Institute of Technology College of Osteopathic Medicine and completed her psychiatry residency training at Northwell Health. During her residency, she was involved in resident leadership and education, serving as academic chief resident during her third year of training. Dr. Khan's practice focuses on a holistic, patient-centered approach. Her practice is rooted in evidence-based practices and focuses on providing medication management during 30-minute visits along with supportive therapy to meet the unique needs of individuals under her care. Occasionally, she may believe that additional therapy is needed and may recommend a therapist be brought into your care team for optimal care.

Dr. Yacoub received his medical degree from Alexandria University and completed his psychiatry residency at Stony Brook University Hospital. He is double board certified in both general adult psychiatry and consultation & liaison psychiatry with over 20 years of clinical experience. After serving as chief resident, he joined Stony Brook University and became Associate Professor in clinical psychiatry. During his tenure at Stony Brook, Dr. Yacoub was director of the ECT service treating many patients with complex psychiatric disorders, which include treatment-resistant depression, severe bipolar disorders, psychotic disorders, anxiety disorders, obsessive compulsive disorder, and post traumatic stress disorder. He also served as director of the medical student psychiatry clerkship where he received numerous teaching awards like Alpha Omega Alpha and Aesculapius Award for Excellence in Medical Education. Dr. Yacoub is an excellent diagnostician with expertise in complex mood disorders, psychotic disorders, interventional psychiatry, and advanced psychopharmacology. He has multiple publications and abstracts presented. Dr. Yacoub focuses on the interconnectivity of the mind, body, and soul. His care is only exceeded by his vast medical knowledge. In addition to medication management, he is proficient in supportive and interpersonal psychotherapy. He has treated adults, geriatric patients, and diverse populations including but not limited to LGBTQ+ and veterans. He is dedicated and empathetic to all his patients.

Dr. Holly Shiao is a psychiatrist who has worked extensively with medically complex patients, including a special focus in psycho-oncology with cancer patients. She is double board-certified in Consultation-Liaison Psychiatry and Adult Psychiatry. She has been practicing for over 7 years. Before Talkiatry, Dr. Shiao worked as an Assistant Professor at the University of Washington and Fred Hutchinson Cancer Center. She also worked as an Assistant Professor and was Director of Emergency Psychiatry at the University of Chicago. She has presented nationally at the Academy of Consultation-Liaison Psychiatry and written a book chapter about psycho-oncology. Dr. Shiao attended medical school at John P. and Kathrine G. McGovern Medical School at the University of Texas Health Science Center at Houston. She then completed an Adult Psychiatry residency at the University of Texas Medical Branch at Galveston, followed by a Consultation-Liaison fellowship at Dell Medical School at the University of Texas at Austin. Dr. Shiao is interested in the mind-body connection in overall emotional and mental well-being. She likes to integrate therapy modalities, such as cognitive behavioral therapy, supportive therapy, mindfulness and meditation with medication management to optimize a patient's mental health.

Dr. Barbara Lampert is a board certified psychiatrist, diplomat of The American Board of Addiction Medicine, and Fellow of the American Society of Addiction Medicine. She trained at the Downstate School of Medicine in Brooklyn, NY, completed her internship at Georgetown University in Washington, DC, and her residency in Psychiatry at the David Geffen School of Medicine at UCLA in Los Angeles. Over 30 years, she has worked in inpatient and outpatient settings, taught 3rd-year residents psychopharmacology in the Mood Disorder clinic she created, consulted in the prison system, and volunteered in the aftermath of natural disasters. She joined the New Mexico Medical Reserve Corps and was active in the Corps while working in her private practice. She continued to study the effects of trauma when she returned to California in 2008. She received specialized training in EMDR and Dialectic Behavior Therapy. In addition, she studied substance abuse problems and became a Diplomate of the American Board of Addiction Medicine. Empathy forms the core of Dr. Lampert's approach to treating patients. Working with trauma survivors, she believes that the goal is not to dwell on "the story” because patients often need time to reconstruct an accurate history. Rather, helping patients manage the challenge of living in the present moment is a worthy goal. Dr. Lampert has been named one of the Best Doctors in America for the treatment of mood disorders and one of the Best Doctors in California. She has remained dedicated to the dual path she's followed for years: excellence in Biological Psychiatry and psychology. She looks forward to working with you to help you achieve your treatment goals.

Dr. Michael Lukowski is an adult psychiatrist who holds board certification with the American Board of Psychiatry and Neurology. He has been practicing medicine for over 12 years. Dr. Lukowski focuses on medication management combined with supportive therapy during initial and follow-up visits. He practices whole-person medicine, caring for the wellness of your mind, body, and spirit and helping you enjoy your relationships with those around you.

Dr. Lukowski received his medical degree from the University of Nevada School of Medicine in Reno, NV, before moving to southern California to complete his residency at Loma Linda University. After completing training, Dr. Lukowski began working with the Southern California Permanente Medical Group in Riverside, CA, where he treated a variety of psychiatric disorders in an outpatient setting.

In March of 2020, as the pandemic changed life and medicine forever, Dr. Lukowski adopted a strictly telepsychiatry role at his clinic. He has also held a staff psychiatrist position as an adult inpatient psychiatrist in Tennessee. Dr. Lukowski treats a wide variety of psychiatric disorders within the adult demographic.

Dr. Mullenix is a board-certified adult psychiatrist who strives to form strong therapeutic and collaborative environments with patients and values patient empowerment. Dr. Mullenix received his medical degree from the Chicago Medical School and then went on to complete his residency in psychiatry at Advocate Lutheran General Hospital. His interests and expertise are in helping patients struggling with depression, anxiety, including social/obsessive compulsive and generalized anxiety disorders, and ADHD. He provides psychiatric medication management along with supportive, cognitive behavioral therapy (CBT) and other modalities of therapeutic treatment. Dr. Mullenix's practice focuses primarily on medication management, or pharmacotherapy. He routinely incorporates supportive therapy into his 30-minute follow-up visits. Dr. Mullenix may occasionally recommend that a therapist be part of the care team to provide optimal outcomes. The philosophy of his practice is to actively involve patients in the decision-making process to improve adherence to treatment and build trusting relationships with all patients.

Bethany McCann is a board-certified Adult and Forensic Psychiatrist. After obtaining her Bachelor of Arts degree in Psychology at Kent State University, she received her medical degree from Ohio Heritage College of Osteopathic Medicine. She then went on to complete her Psychiatry Residency training at The Ohio State University, where she served as a Chief Resident for two years.

Following residency, Dr. McCann pursued an additional year of training through Ohio State, where she completed a Forensic Psychiatry Fellowship. A large portion of her time was spent in the state hospital system, where she learned more about the interplay between psychiatry and the law, provided high-quality psychiatric services to an inpatient forensic population, conducted forensic evaluations, and educated the Court on psychiatric topics through expert testimony.

While Dr. McCann has had experience working in a variety of settings, she has maintained a passion for outpatient psychiatry and building a strong, therapeutic relationship with her patients. Dr. McCann will provide an evidence-based medication management visit for a variety of psychiatric conditions including depression, anxiety, bipolar disorder, ADHD, PTSD, and OCD, while incorporating therapeutic techniques that are tailored to the individual and their goals.

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