Sarah Mennella, MD

Dr. Bartek holds the position of Staff Psychiatrist at Talkiatry. She is board-certified in General Psychiatry, Pediatrics, and Child and Adolescent Psychiatry. She has been caring for children and adolescents as a physician for more than 15 years. Dr. Bartek's approach is holistic, collaborative, supportive, and patient-centered. Dr. Bartek draws on her years as a pediatrician working with families and children in her work as a psychiatrist. Dr. Bartek incorporates therapeutic techniques into medication management visits, but she may also recommend adding a therapist to your care team for the best results. She received her medical degree from the University of Washington School of Medicine in Seattle, WA, before moving to Memphis to complete her residency in Pediatrics at the University of Tennessee Health Sciences Center and Le Bonheur Children's Hospital. She completed her undergraduate studies at Haverford College in Pennsylvania. After completing training, she remained in Memphis and worked in the Le Bonheur Children's Hospital Emergency Department as a pediatrician. She then moved to Nashville to work at the Monroe Carell Jr. Children's Hospital at Vanderbilt in the Emergency Department Fast Track and After-Hours Clinics. Dr. Bartek transitioned to primary care pediatrics at Pediatric Associates of Davidson County for several years before returning to the University of Tennessee Health Science Center in Memphis to complete the Child and Adolescent Psychiatry Post-Pediatric Portal Fellowship program. Dr. Bartek's primary clinical focus is treating children and adolescents.

Background and credentials

Dr. Yang is board-certified in both General Psychiatry and Addiction Psychiatry. She received her medical degree from the Medical School of Nanjing University in China and completed her Ph.D. in Neuroscience at the State University of New York in Buffalo. She conducted neuroscience research at Tufts University and Columbia University. Dr. Yang completed her residency in Psychiatry at the University of Texas Health Science Center at Houston – McGovern Medical School (UTHealth) and a fellowship in Addiction Psychiatry at Baylor College of Medicine. She has held academic positions at Baylor College of Medicine, supervising medical students, residents, and physician assistant students.

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Treatment approach

Dr. Yang specializes in treating depressive disorders, bipolar disorders, anxiety, substance use disorders, ADHD, and trauma-related disorders. She employs medication management combined with supportive therapy and motivational interviewing techniques. Dr. Yang emphasizes building strong therapeutic relationships, tailoring treatment to each patient's unique goals and needs.

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What you can expect in a first visit

In the initial visit, patients can expect a detailed, personalized evaluation by Dr. Yang. She will explore symptoms, medical history, personal goals, and treatment preferences to design an individualized care plan. Patients can expect a compassionate, collaborative approach with clear communication about medication management options and supportive therapeutic strategies aimed at improving their overall well-being.

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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. Zachary Masuda earned his medical degree at Creighton University School of Medicine in Omaha and completed his Psychiatry residency at Creighton University School of Medicine in Phoenix. He went on to complete an Addiction Psychiatry fellowship at Oregon Health and Science University. During training, he was inducted into the Gold Humanism Honor Society, reflecting his commitment to compassionate care. Dr. Masuda is board-certified in general psychiatry and has experience working in outpatient, residential, and inpatient settings.

Dr. Masuda is dedicated to creating a safe, supportive, and nonjudgmental environment where patients feel heard and respected. He emphasizes open communication to establish clear treatment goals and expectations, ensuring patients are active partners in their care. His approach remains flexible, adapting as treatment evolves to best meet patient needs.

Dr. Masuda begins by gaining a thorough understanding of each patient’s history, concerns, and goals during the initial session. He then develops personalized treatment plans that align with those goals, integrating both medication management and therapeutic interventions. His balanced approach allows for individualized care tailored to support long-term recovery and overall well-being.

Dr. Robben proudly served in the U.S. Air Force and has been practicing psychiatry for 17 years. He is happy to have completed his medical school education, as well as his residency in general psychiatry and fellowship in addiction psychiatry, all at the University of South Florida in Tampa. Dr. Robben is board certified in both general psychiatry and addiction psychiatry. He has experience in many roles over the span of his career to include working with Veterans diagnosed with posttraumatic stress disorder and substance use disorders, managing specialty clinics for patients with treatment-resistant depression, and working in general outpatient psychiatry clinics, as well as emergency and inpatient psychiatric settings. Dr. Robben also previously served as the Training Director for the University of South Florida Morsani College

of Medicine Addiction Psychiatry Fellowship Program. He is currently the Medical Director at a residential substance use disorder treatment center in Florida. Additionally, Dr. Robben is a certified Medical Review Officer and has additional qualifications in transcranial magnetic stimulation (TMS) and Spravato.

(esketamine). Dr. Robben has been voted as Addiction Medicine "Top Doctor" in Tampa Bay, FL by physicians for 8 of the last 9 years. Dr. Robben specializes in treating depression, bipolar disorder, anxiety, PTSD, OCD, ADHD and substance use disorders.

Dr. Robben uses a supportive, patient-centered approach, taking into account each individual's personal values and goals when formulating a treatment plan. He educates patients on the most up to date scientific evidence and provides multiple treatment options to help each person determine the most appropriate plan for them.  

Dr. Robben believes in a collaborative and holistic approach to working with his patients. Dr. Robben spends a significant amount of time educating his patients on all forms of mental health treatment, from medications and psychotherapy, to nutrition, exercise, meditation and sleep hygiene. What works well for

One person may not work well for another person. Having options and understanding the potential benefits and risks of each treatment empowers patients to take an active role in their own healthcare.

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Dr. Li is a board-certified adult psychiatrist based in Florida. He has a particular focus on combining supportive psychotherapy techniques with medication management in the treatment of psychiatric conditions. Some conditions he has particular experience in managing include attention/focus difficulties, anxiety, depression and bipolar mood issues, but he is well-versed in addressing a wide variety of diagnoses.

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.