Jessica Grimes, DO

Dr. Sahadevan took an adventurous path to Talkiatry. After perhaps thinking a little too hard about Intro to Philosophy in college - "the unexamined life is not worth living” - he first used his chemistry degree to work in pharmaceutical research. He changed course, working in computer network engineering, before deciding to find a more meaningful path. He worked as an EMT, then earned a Master's in Physiology before finally landing in medical school at Ohio State. Finding a surprising interest in psychiatry, he stayed at Ohio State for residency, and then a fellowship in forensic psychiatry. He is board-certified in both Psychiatry and Forensic Psychiatry. He previously worked as a forensic psychiatrist and evaluator at Ohio's maximum-security state psychiatric facility, as an attending psychiatrist running an inpatient unit for violent or dangerous patients, performing court-ordered evaluations, writing reports, and testifying when necessary. Dr. Sahadevan has also worked as a consultation-liaison psychiatrist, performing psychiatric consults at several general hospitals in Central Ohio's largest hospital system. He found great enjoyment in teaching successive generations of residents and medical students, serving as an adjunct faculty member at Ohio State, Ohio University, Wright State, and OhioHealth Riverside Methodist Hospital. He is excited for the next chapter of his journey, exploring another area of psychiatry at Talkiatry!

Dr. Mark Sundahl is a board-certified adult psychiatrist. He was born and raised in the suburbs of Kansas City, Kansas. He has always been fascinated by the natural world and received a bachelor’s degree in biology at Kansas State University where he was active in a research lab investigating protein function in the human body. He completed medical school training and residency at the University of Kansas School of Medicine in Kansas City, Kansas along with Wichita, Kansas. Dr. Sundahl has experience working with a broad range of mental health symptoms and a diverse patient population

Dr. Mark Sundahl is a board-certified adult psychiatrist. He was born and raised in the suburbs of Kansas City, Kansas. He has always been fascinated by the natural world and received a bachelor’s degree in biology at Kansas State University where he was active in a research lab investigating protein function in the human body. He completed medical school training and residency at the University of Kansas School of Medicine in Kansas City, Kansas along with Wichita, Kansas. Dr. Sundahl has experience working with a broad range of mental health symptoms and a diverse patient population

Dr. Sundahl understands the importance of collaboration and the therapeutic alliance when working with patients. He will clearly explain his findings and discuss treatment options he feels are reasonable. Dr. Sundahl thinks it is important for patients to have all the necessary information to make informed decisions when it comes to their psychiatric treatment.

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Dr. Ayanna Swinton Jamison is a board-certified psychiatrist with over 18 years of experience in general, as well as child and adolescent psychiatry. She has extensive experience in counseling, and medication management. Dr. Jamison is committed to educating her patients about their illness and providing personalized care for each patient. Dr. Jamison received her undergraduate degree from Jackson State University. She graduated from Saint Louis University Medical School and completed her residency training in general psychiatry and child and adolescent psychiatry at the University of South Carolina. Dr. Jamison is a proud mom of four who enjoys spending time with her family, and attending her kids' sports events.

Background and credentials

Dr. Puja Kumar is trained in adult, child, and adolescent psychiatry and is a board-certified pediatrician. She earned her Bachelor of Science from the University of Calgary and her medical degree from St. George’s University in Grenada. She completed her pediatrics residency at Maimonides Medical Center in New York and practiced pediatrics with MedStar Shah Medical Group in Maryland before transitioning to psychiatry. She later trained in child and adult psychiatry at University Hospitals Cleveland Medical Center.

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Treatment approach

Dr. Kumar provides medication management combined with supportive therapy, typically in 30-minute follow-up visits. She takes a holistic approach to treatment, considering the impact of lifestyle, parenting practices, and family dynamics on mental health. She emphasizes integrative care, ensuring that treatment plans are tailored to each patient’s unique needs and circumstances.

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What you can expect in a first visit

During the first visit, patients can expect a thorough and compassionate evaluation, where Dr. Kumar takes time to understand their symptoms, medical history, and environmental influences. She prioritizes collaborative decision-making, working closely with patients and, when applicable, their families, to develop a comprehensive and personalized treatment plan. Follow-up visits typically focus on medication adjustments, supportive therapy, and lifestyle recommendations to optimize mental health outcomes.

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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. Alexandra Dunn is a board-certified adult psychiatrist who completed her medical training at the University of California Irvine School of Medicine. She then moved to New York to complete her psychiatric residency training at Mount Sinai Beth Israel. During training, Dr. Dunn gained extensive clinical experience in psychiatric inpatient, outpatient, and emergency settings, allowing her the opportunity to treat patients of all ages and backgrounds. In addition, she co-led a mindfulness group at the outpatient clinic, worked with students at Baruch College, and rotated with the Assertive Community Treatment team at MSBI. Ultimately, Dr. Dunn chose outpatient care, focusing on treating patients with mood and anxiety disorders. While her practice primarily emphasizes medication management, she also incorporates supportive and cognitive behavioral therapy techniques in her sessions with patients. If appropriate, Dr. Dunn will refer you for psychotherapy and collaborate with your therapist to support your care. She looks forward to meeting and working with you to help you feel better.

Damaris Chukwura, DNP, PMHNP-BC, is a Board-Certified Family Psychiatric Mental Health Nurse Practitioner with over a decade of experience in mental health care. She began her nursing career in 2007 and has been practicing as a psychiatric nurse practitioner since 2014. Damaris has worked in a wide range of settings including inpatient hospitals, residential treatment centers, partial and intensive outpatient programs, correctional psychiatry, and substance abuse treatment. Her clinical experience spans various conditions such as ADHD, eating disorders, mood disorders, psychotic disorders, PTSD, and treatment-resistant depression. She earned her BSN from Texas Christian University, MSN from The University of Texas at Arlington, and her DNP from The University of Alabama in Huntsville.

Damaris values open communication and collaboration with her patients. She creates a warm, caring environment where individuals feel heard and respected. Her approach is both evidence-based and supportive, blending professionalism with a welcoming demeanor. She is passionate about mental health advocacy and reducing stigma. Outside of work, Damaris enjoys spending time with her husband and three children, traveling, decorating, and watching reality TV.

During initial psychiatric evaluations, Damaris takes time to fully understand each patient’s history, concerns, and goals. She develops individualized treatment plans that align with these goals and may include supportive therapy or referrals for more intensive therapy if needed. Follow-up appointments typically last 30 minutes, allowing time to track progress and make adjustments as necessary.