Our Team

If you’re one of the millions of women suffering from mental health issues, you may be looking for a different kind of psychiatric care. Traditional psychiatry may not be the right fit for you. Functional medicine could be a better option. A functional medicine psychiatrist team can help you get to the root of your mental health issues and find solutions that work for you. So if conventional treatments haven’t worked for you, it’s time to explore functional psychiatry.

Oluyemi Aina, MD located in Sherman, TX & Frisco, TX

Oluyemi Aina, MD

Dr. Aina is a board-certified psychiatrist and sleep medicine specialist who sees patients at both our Sherman and Frisco locations. He founded Tri-MED Integrative Psychiatry and Sleep Medicine after several years of treating psychiatric and sleep disorders in England and the United States, because he wanted to create a warm, welcoming and non-judgemental space, where caring professionals would prioritize treating the whole person and helping them achieve overall wellness, instead of merely medicating their symptoms.

Dr. Aina listens attentively to patients’ histories, in order to identify the root cause of their struggles and develop a personalized treatment strategy to help them find relief. He treats all types of psychiatric and sleep disorders, including depression, anxiety disorder, ADHD, bi-polar disorder, brain fog, OCD, PTSD, personality disorders, addiction, memory loss, sleep apnea, insomnia, narcolepsy, and restless legs syndrome. He also does psychiatric assessments for patients seeking bariatric surgery.

What Dr. Aina's Patients Say

Milka Kamau, MSN, APRN, PMHNP

Milka Kamau, MSN, APRN, PMHNP

Milka is a board-certified Family Psychiatric Mental Health Nurse Practitioner, graduating with a Bachelor of Science in Nursing degree from the University of Texas at Arlington in 2016. Subsequently obtaining a Master of Science in Nursing with a specialization in Psychiatry & Mental Health. Milka is trained to diagnose & treat all mental health conditions, including, depression, anxiety disorders, OCD, ADHD & ADD, Bipolar disorder. PTSD, substance abuse & addiction, sleep problems, & impulse control disorders. Her non-judgmental approach helps individuals & families understand that there should be no shame or guilt associated with mental illness.

What Milka’s Patients Say

Theresia Tabe

Theresia Tabe, DPN, MSN, APRN, PMHNP

Dr. Tabe is a board-certified Psychiatric Mental Health Nurse Practitioner, with a doctorate degree in Nursing Practice (DNP) and a Master of Science degree from Walden University. Theresia recognizes that it takes strength to recognize that help is needed and even more courage to seek professional help when experiencing mental health challenges. She welcomes each patient with compassion and keenly listens as she performs a comprehensive assessment and evaluation, followed by a well-thought-out treatment plan. She believes in the uniqueness of each patient’s healthcare journey and provides care based on the unique needs of each individual. She is experienced in treating all psychiatric disorders, including but not limited to mood disorders (like depression and bipolar disorder), anxiety, personality disorders, ADD/ADHD, PTSD, substance use disorders, and eating disorders. Theresia focuses on evidence-based and clinically effective remedies to help restore balance in her patients’ lives. She enjoys working with patients ages 16 years and older. In her spare time, Theresia enjoys cooking, reading and spending time with family.

What Theresia’s Patients Say

Rebecca Jaiyesimi, MSN, MHA, APRN, PMHNP-BC.

Rebecca Jaiyesimi is a board-certified Psychiatric Mental Health Nurse Practitioner, with over 16 years of nursing experience. Her deep understanding of mental health, combined with her clinical skills, and remarkable bedside manner help her gather pertinent information and provide comprehensive assessments, diagnoses, and treatment plans that provide the best possible outcomes for her patients. She has a steadfast commitment to providing patient-centered care. Known for creating a safe space and comfortable environment, Rebecca ensures that all her patients feel welcome, heard, and valued. She is committed to delivering compassionate care, making a significant contribution to the mental health community through her work. Rebecca is proficient in diagnosing and treating a wide range of mental health conditions. These include but are not limited to depression, anxiety disorders, obsessive-compulsive disorder (OCD), attention deficit hyperactivity disorder (ADHD), attention deficit disorder (ADD), bipolar disorder, post-traumatic stress disorder (PTSD), substance abuse, addiction and sleep problems. Her approach to care is holistic, ensuring that every aspect of a patient's well-being is considered and addressed. In her spare time, Rebecca likes to garden, cook and bake.

What Rebecca’s Patients Say