Mary Poupon, PMHNP

Dr. Tammara Davis is a board-certified adult psychiatrist with over 15 years of experience treating patients across inpatient, outpatient, emergency, and telepsychiatry settings. She earned her medical degree from the University of Tennessee Health Science Center, completed her psychiatry residency at St. Elizabeths Hospital in Washington, DC, and holds a B.S. from Xavier University of Louisiana.

Dr. Davis previously served as a Primary Care–Mental Health Integration psychiatrist at the Veterans Health Administration, where she helped expand access to care in community-based clinics. She is an active member of the Black Psychiatrists of America, where she advances advocacy and equity in mental health care. While she has treated a wide variety of patients from all walks of life, her clinical focus has been on improving access to quality mental healthcare for historically marginalized communities.

Dr. Davis specializes in mood and anxiety disorders, including depression, PTSD, and perinatal mental health. Her approach is holistic, integrative, and patient-centered—grounded in cultural humility and collaborative care. She does not prescribe benzodiazepines, focusing instead on evidence-based strategies that support long-term wellness. While treating a wide variety of patients, Dr. Davis’ clinical focus has been on adults from marginalized and/or minoritized communities.

Dr. Davis begins care with a consultation to ensure a strong fit and shared treatment goals. Dr. Davis is committed to creating a safe, trusting space where patients feel empowered and in control of their healing. She recognizes that not all patients require medication and integrates culturally affirming support when therapy and education are more appropriate.

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Dr. Lindsay Works is board-certified in psychiatry and addiction medicine. She earned her Doctor of Osteopathic Medicine (DO) degree from Rocky Vista University in Colorado and completed her internship and psychiatry residency at Walter Reed National Military Medical Center. She has extensive experience in both inpatient and outpatient psychiatric care, particularly in military and veteran populations.

Dr. Works specializes in psychiatric care and addiction medicine, offering treatment for a range of mental health and substance use disorders. She takes a comprehensive and structured approach, integrating medication management with individualized treatment planning. Her background in military psychiatry allows her to provide specialized care for veterans and active-duty service members, particularly those experiencing PTSD, substance use issues, and other psychiatric conditions.

During the first visit, patients can expect a detailed and structured psychiatric evaluation, where Dr. Works carefully assesses mental health concerns, treatment history, and personal goals. She prioritizes collaboration and patient engagement, ensuring that each treatment plan is tailored to the individual’s needs. She works with patients to develop an approach that may include medication management, therapy referrals, and support for addiction-related challenges, depending on each patient's unique situation.

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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Background and credentials    

Dr. Abernethy is a board-certified psychiatrist who received his medical  degree from the University of Texas Medical School at Houston. He completed  his internship at UT Southwestern in Dallas and earned a Master's of Public  Health in Epidemiology and Occupational and Environmental Health from Texas  A&M. He completed his psychiatry residency training at the University of  Oklahoma Health Science Center. Dr. Abernethy has over 12 years of experience  practicing psychiatry in various outpatient settings, including private  practice and community mental health centers in Texas and Oklahoma,  specifically reaching underserved communities. He has treated a broad  spectrum of mental health symptoms among diverse populations, addressing  issues ranging from mood and anxiety disorders to behavioral manifestations  of Autism and other developmental disorders.    

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Treatment approach    

Dr. Abernethy utilizes a collaborative and patient-centered approach to  psychiatry, focusing primarily on medication interventions that align with  each patient's unique treatment goals and clinical needs. He emphasizes  cooperation with patients to effectively treat and reduce mental  health-related symptoms. His practice centers around medication management,  supplemented by supportive treatments tailored to individual needs. Depending  on each patient’s circumstances, he may recommend additional support from  individual, family, or group counselors and therapists to achieve optimal outcomes.    

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What you can expect in a first visit

In an initial visit, patients can expect a thorough, collaborative  discussion focused on understanding their symptoms, goals, and clinical  needs. Dr. Abernethy will evaluate the patient's condition to determine  appropriate medication interventions and discuss personalized treatment  recommendations. Typical follow-up visits are approximately 20-30 minutes in  length. Depending on the severity and complexity of a patient's situation,  referrals to additional counseling or therapy may also be suggested.    

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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 speciualize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.

Dr. Jen Wygant is a board-certified psychiatrist who specializes in adult psychiatry. She completed her residency training in general adult psychiatry at the University of Michigan and received her medical degree from Rocky Vista University College of Osteopathic Medicine. However, she took a non-traditional path to medical school. She earned her undergraduate degree in nursing at Northern Michigan University where she also did Army ROTC and competed on their cross-country ski team. After graduation, she went on to work as a nurse in the Army and compete on the US National Biathlon Team.

During her training, Dr. Wygant gained extensive experience treating a wide range of diagnoses with particular emphasis on PTSD, anxiety and depression in diverse populations, including college students, LGBTQIA+ individuals, perinatal individuals, Veterans and those with socioeconomic disadvantages.

Through her work as an Army nurse, lifestyle as an elite level athlete, and training as an Osteopathic physician she has developed a holistic and compassionate approach to providing care as well as an understanding of challenges unique to athletes and Service members. She integrates multiple types of therapy into her medication management appointments and collaborates with patients to form an individualized and empowering care plan that aligns with their goals and priorities.  

Dr. Wygant looks forward to working with you!

Cherie Tubeileh, PMHNP-BC, is a compassionate Psychiatric Nurse Practitioner dedicated to providing personalized, evidence-based mental health care. Cherie earned her master’s degree from the Medical College of Ohio and her post-master’s certification from Rush University. Outside of work, she enjoys hiking, yoga, and meditation, reinforcing her belief in the importance of balance and self-care.

With expertise in diagnosing and treating various conditions, she empowers patients through psychopharmacology and therapeutic interventions. Cherie embraces a holistic approach, recognizing the vital connection between mind, body, and spirit in the journey to mental wellness.

Her approach integrates evidence-based practices with a holistic understanding of everyone’s unique needs, ensuring personalized and effective care. Cherie has worked extensively with diverse populations, including individuals managing anxiety, depression, trauma, and mood disorders. She is skilled in psychopharmacology, therapeutic interventions, and patient education, fostering a supportive environment that empowers individuals on their journey to wellness.

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Dr. Steve Paschos is a board-certified Psychiatrist at Talkiatry. He attended Loyola University Chicago on the Lake Shore campus, completing a bachelor's degree in science and a Degree in Classical Studies. He then attended Medical School at Rush Medical College in Chicago and completed a 5-year combined Internal Medicine & Psychiatry residency in 2011. Dr. Paschos subsequently completed a 1-year fellowship in Geriatric Medicine at Rush University Medical Center. He has spent the last 12 years fulfilling his passion for integrating Internal Medicine & Psychiatry, working with a diverse range of patients suffering from severe mental illnesses. ‍Dr. Paschos' years of experience have included working at Cook County Health Services � Cermak Health Services at Cook County Department of Corrections with an extremely diverse patient population with varying psychiatric illnesses. He has also worked as an inpatient psychiatric hospitalist and as the director of the Intensive Care Unit at Chicago Behavioral Hospital in Illinois. Dr. Paschos also acted as a medical director of an IOP and established an outpatient psychiatric practice in conjunction with the Intensive Outpatient Program. He has had the opportunity and privilege of treating individuals who suffer from various diagnoses, especially challenging patients who have suffered from integrated or Med-Psych concerns involving primary mood disorders, Bipolar Affective disorders, prior trauma, severe medical problems/diagnoses along with concurrent personality pathology. ‍Dr. Paschos utilizes supportive psychotherapy, brief cognitive behavioral therapy, and at times psychodynamic therapy to address his patients' current complaints and to identify the locus of their symptoms. He believes in utilizing an all-encompassed approach using mindfulness and various psychotherapies along with comprehensive medication management. To quote Hippocrates "Where there is love for the art of medicine there is a love of humanity.”