ADHD Psychiatrists in California

Dr. Boski Patel holds the position of psychiatrist at Talkiatry. She is double board-certified in geriatric and adult psychiatry and she has been practicing for over 3 years. Dr. Patel's practice focuses on medication management and she typically in conjunction with supportive therapy in 30-minute follow-up visits. On occasion, Dr. Patel may believe that additional therapy is also needed and asks that you bring a therapist into your care team to provide the best outcome. She received her undergraduate degree from the University of Pittsburgh, and then went on to receive her medical degree from Penn State University. Following medical school, she completed general psychiatry residency training at the University of Connecticut where she was Chief resident of outpatient psychiatric services. During that time, she was also chosen as an Honors scholar by the American Association of Geriatric Psychiatry. After training, she moved to California to do her geriatric psychiatry fellowship at Stanford. Following her fellowship, she worked at Kaiser Permanente in clinical roles of outpatient, geriatric, and C/L.

Background and credentials

Dr. Agarwal is a board-certified adult psychiatrist. He obtained his bachelor's degree in Biological Sciences from the University of California at Irvine and graduated cum laude with his medical degree from the American University of Antigua. Dr. Agarwal completed his psychiatry residency training at the University of Central Florida, where he was elected chief resident.

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Treatment approach

Dr. Agarwal employs a collaborative and patient-centered approach, primarily focusing on medication management in combination with supportive therapy. He is a strong advocate of psychoeducation, believing it to be an integral part of effective psychiatric care. Dr. Agarwal specializes in treating adults experiencing depression, anxiety, PTSD, and insomnia. He is also experienced in managing patients with psychiatric conditions complicated by medical comorbidities such as obesity, hypertension, chronic pain, and diabetes.

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What you can expect in a first visit

Patients visiting Dr. Agarwal for the first time can anticipate a comprehensive evaluation conducted in a collaborative and supportive environment. Dr. Agarwal prioritizes understanding each patient's individual needs and concerns, creating a personalized treatment plan that integrates medication, supportive therapy, and psychoeducation. Follow-up visits typically last about 30 minutes, allowing time to adjust treatment and reinforce therapeutic strategies.

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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. 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.

Robynn Cavaliere, PMHNP-BC, is a nationally board-certified Psychiatric Mental Health Nurse Practitioner. She earned her nursing practice degree from the University of San Diego (USD). Her passion for helping others began at the age of 16 when she became an EMT and volunteered with a local emergency unit. Inspired by a strong belief in service to country and a desire to follow in her brothers’ footsteps, she proudly served in the United States Marine Corps.

Robynn’s nursing journey began over two decades ago, driven by a deep calling to care for others. She started her career as an LVN on medical/surgical/telemetry floors, advanced to an RN in the emergency room, and eventually became a psychiatric nurse practitioner.

Her extensive nursing experience spans a wide range of clinical settings and patient populations, shaping her approach to interviewing, assessment, and intervention. Robynn applies the Biopsychosocial Model in every patient encounter, believing that a comprehensive understanding of the whole person leads to more effective treatment recommendations, improved outcomes, and better prognoses.

She is deeply committed to making a positive impact in her patients’ lives and giving back to the nursing profession. Robynn precepts student nurse practitioners in her practice and serves as a Clinical Assistant Professor at USD, where she helps educate the next generation of healthcare providers.

Robynn emphasizes the importance of comprehensive assessments, active listening, and building therapeutic alliances that foster trust and create a safe space for patients to share their thoughts and concerns. She collaborates closely with patients to ensure they feel heard, encourages active participation in their treatment, and provides education to enhance insight and promote behavioral change. Her approach includes supportive psychotherapy and incorporates techniques from Cognitive Behavioral Therapy (CBT), Interpersonal Therapy, Reality Therapy, and Solution-Focused Therapy during medication management visits.

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Tulsie Patel is a board certified psychiatrist who treats adults. She graduated Cum Laude from Drexel University and attended medical school at the University of Miami Miller School of Medicine. She completed her psychiatry residency at the University of Texas Southwestern (UTSW) and was elected to serve as Chief Resident during her final year of training. She has worked as an outpatient psychiatrist in California and Florida and has experience in medication management, individual and group therapy, and transcranial magnetic stimulation (TMS). She is dedicated to constantly learning and has previously published numerous articles and book chapters on various topics in the fields of psychiatry, dermatology, and psychodermatology. She is also very passionate about education and medical journalism. During her residency training, she worked at ABC News in New York City as a member of their medical unit. She provided consultation on medical stories for programs including Good Morning America and World News with David Muir. She has published a number of articles on the websites for ABC News and Good Morning America. She also has experience presenting as an on-air expert for ABC News and for mental health podcasts. She is committed to continuously evolving as a provider in order to provide the best care for her patients. Her focus is always to provide patient-centered care by prioritizing open communication and collaboration with her patients. She has experience providing care for a variety of psychiatric illnesses. The conditions she treats include but are not limited to depression, anxiety, panic disorder, OCD, PTSD, and ADHD.

Dr. Rachel Sherhart is a board-certified adult psychiatrist who has been in practice for over 4 years. She specializes in medication management with 30-minute follow-up visits. This may be accompanied by elements of supportive therapy, Acceptance and Commitment Therapy (ACT), Dialectical Behavior Therapy (DBT), and psychodynamic therapy. If more in-depth work is needed, she may refer patients to a collaborating psychotherapist. ‍Dr. Sherhart received her medical degree from Texas A&M Health Science Center and completed her psychiatry residency training at the University of Texas Southwestern in Dallas, Texas. She has served as faculty at Texas A&M University College of Medicine, providing education and supervision for psychiatry residents and medical students. ‍She has experience treating adult patients from many walks of life with a broad range of diagnoses, including depression, anxiety, bipolar disorder, ADHD, and trauma-related disorders. Dr. Sherhart has a passion for providing excellent patient care and education. Her goal is for patients to feel heard and find a safe place to discuss their concerns. She is motivated to work collaboratively with patients to find a solution that best fits their treatment goals and improves their overall quality of life.‍

Dr. Martha James is board-certified in general adult psychiatry and has more than twenty years of experience working with adults in a variety of mental health care settings including academia, inpatient psychiatric hospitals, outpatient clinics, university medical centers, VA medical centers, and community mental health settings. Dr. James received her medical degree from Duke University School of Medicine. She completed her psychiatric residency at the University of California, Los Angeles Neuropsychiatric Institute. Dr. James has experience treating adults with a variety of mental health problems including anxiety, mood disorders, trauma related disorders and psychotic disorders.

Dr. James is an experienced, open-minded psychiatrist who prioritizes empathy and understanding in her work. She recognizes that each individual's path to wellness is unique and strives to meet patients where they are in this process. Dr. James believes that while some individuals may benefit from treatment with medication management alone, psychotherapy is often important for treatment success. She encourages patients to participate in psychotherapy and believes a therapist can be a crucial part of the treatment team.

Dr. James uses a collaborative, patient-centered treatment approach with the goal of reducing mental pain and improving wellness so that patients are better able to pursue their unique personal and professional goals. She utilizes psychopharmacology, psychoeducation, and supportive and psychodynamic psychotherapy skills when working with patients.

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Dr. Austin Davidson grew up in Nashville, TN before moving to CA for his undergraduate studies at the University of California, Irvine where he was on the rowing team. He then attended medical school at the Alabama College of Osteopathic Medicine. He completed his psychiatry residency training at the University of Nevada, Las Vegas.

When he’s not practicing medicine, he enjoys spending time with his family, working out in his garage gym, and playing board games.

Dr. Davidson focuses on treating the whole patient. He believes medication is just one of the many important aspect to address when concerning mental health. Therapy, lifestyle changes, diet, and exercise are also equally important modalities that must be considered in treatment.  

Dr. Davidson’s treatment process typically begins with an in-depth history that focuses on getting to know his patients. He prefers to take his time with each patient and to make sure they feel they are heard. He believes the treatment process is a team effort and he takes time to come up with treatment plans that both he and his patients are comfortable with.

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Dr. Marcia Morris is a psychiatrist with over thirty years of experience providing medication management as well as supportive psychotherapy to adult patients. She takes a positive psychiatry approach to treatment, prescribing medication while supporting patient strengths, social connections, and healthy habits. She has worked with university students as well as employees in an employee assistance program. She provides care for patients with depression, anxiety, OCD, PTSD, and ADHD. In her previous role as an Associate Professor at the University of Florida, she has done research on the increase in depression and anxiety as well as the increased use of psychiatric medications among university students. She has published academic papers and given national talks in these topics with the goal of decreasing stigma and improving mental health care for young adults. She is a founding member of the Association for College Psychiatry and a member of the American Psychiatric Association college mental health caucus. Dr. Morris provides education to the public about mental health as a writer and public speaker. Her articles have appeared in the New York Times, the Tampa Bay Times, and the Huffington Post. She also has been interviewed on NPR and several podcasts. She currently writes a Psychology Today parenting blog "College Wellness: Promoting Happiness & Health in the College Years.” Her book, "The Campus Cure: A Parent's Guide to Mental Health & Wellness for College Students,” was published January 2018. Dr. Morris has an undergraduate degree from Harvard, a medical degree from Yale, and psychiatry residency training at New York Hospital Cornell Medical Center. She is a Distinguished Life Fellow of the American Psychiatric Association.

Dr. Sujith Maracheril is a board-eligible psychiatrist who provides comprehensive patient care while building a physician-patient relationship centered on communication, empathy, and respect. His primary focus is medication management, and he also provides supportive psychotherapy to help patients work toward long-term improvements. While aligning treatment toward patient goals, he takes a practical approach to changes that can be made to empower patients in their lives. Dr. Maracheril is a graduate of the Sophie Davis Biomedical Education Program at the CUNY School of Medicine, a 7-year BS/MD program. He completed his residency training in psychiatry at the Zucker School of Medicine/Northwell Health at Mather Hospital. He has trained in many settings including inpatient psychiatric units, general and specialized outpatient clinics, and at a partial hospitalization program. Dr. Maracheril has experience treating a broad range of mental health conditions including depressive disorders, bipolar disorder, anxiety disorders, ADHD, and OCD. He understands that people may experience these conditions in different ways, and he aims to treat each patient in an individualized and holistic way.

Dr. Suneja practices psychiatry through a collaborative, integrative, disability and healing justice-informed lens. He rejects oversimplified binaries, recognizing that healing requires embracing complexity. His training includes Columbia, Johns Hopkins, and a global mental health fellowship at UCSF. His clinical interests include anxiety, OCD, women’s reproductive mental health, climate stress, intergenerational trauma, immigrant and refugee mental health, and substance use concerns. Based in Tucson, he enjoys desert life, reading, baking, making art, and spending time with his two dogs.

Dr. Suneja provides a healing space that prioritizes each service user’s goals and lived experiences. His approach integrates psychiatric and psychotherapeutic practices with complementary, alternative, and natural therapies, as well as harm reduction. His approach is neurodivergence-, queer-, and gender-affirming as well as trauma-informed. Rejecting the binary of “mentally ill” vs. “mentally healthy,” he recognizes the mind, body, and soul’s inherent complexity.

Dr. Suneja tailors care to each service user. The first session explores goals, treatment options, and optimal meeting frequency. In many cases, visits are more frequent at the beginning of treatment and spaced out over time. He prefers visits at least every 4-6 weeks and integrates psychotherapy into all treatment plans, with many service users benefiting from ongoing deeper therapeutic work.

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. Earl De Guzman is a psychiatrist who values therapeutic partnership, working with patients to balance symptom relief with meaningful self-exploration. He earned his BS in Psychology from the University of California, Davis, and his MD from Ross University School of Medicine. He completed his psychiatry residency at Los Angeles County + University of Southern California Medical Center and a consultation-liaison psychiatry fellowship at Stanford University Medical Center. He is triple-board-certified in psychiatry, consultation-liaison psychiatry, and addiction medicine, and holds psychoanalytic psychotherapy training certification from the Psychoanalytic Center of California. Currently, he is a psychoanalyst-in-training at the New Center for Psychoanalysis. His expertise spans medication management, supportive therapy, and psychodynamic therapy.

Dr. De Guzman takes a collaborative, patient-centered approach, creating a warm and nonjudgmental environment. He listens deeply, asks thoughtful questions, and encourages honest exploration of symptoms and underlying patterns. He values authenticity, curiosity, and respect for each patient’s unique experiences. While symptom relief is important, his goal is to foster self-understanding and long-term growth. He works best with patients open to collaboration and motivated for change, whether through medication management, therapy, or both.

Dr. De Guzman begins with a consultation phase to ensure a good fit, listening carefully to understand each patient’s challenges and goals. Together, he and his patients build a working alliance by clarifying difficulties, identifying realistic changes, and exploring deeper patterns. When appropriate, he prescribes medication thoughtfully, aiming to support therapy rather than replace it. Each session integrates supportive and psychodynamic elements, combining medication review with therapeutic dialogue. Treatment plans are regularly revisited, allowing flexibility and growth, with the ultimate aim of empowering patients toward lasting change.

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. 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.

Dr. Kerstin Asquith is a board-certified psychiatrist at Talkiatry. She has extensive experience working with a wide range of diagnoses and patient populations, with particular interest in treating depression, anxiety, PTSD, and OCD. She also has additional training in college mental health. Dr. Asquith believes in the importance of getting to know each of her patients and the unique issues that bring them into treatment. Her approach involves collaborating with patients to create personalized treatment plans and considering both medication and non-medication methods.

Dr. Asquith is from California and completed her undergraduate studies at the University of California, Davis. She obtained her medical degree from Creighton University School of Medicine and then trained at Stanford University's Adult Psychiatry Residency Program. She subsequently completed a fellowship in student mental health at Stanford University. Most recently, Dr. Asquith worked as an outpatient psychiatrist at The Permanente Medical Group. In her free time, she enjoys traveling, trying new foods, and spending time with friends and family.