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Tammara Davis, MD

Staff Psychiatrist
Languages
English
Conditions Treated
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
LGBTQIA+

Education and training

  • University of Tennessee College of Medicine Doctor of Medicine (MD)

Get to know

Tammara Davis, MD

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. 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.‍

Cody Zaiontz, LPC

Staff Therapist

Cody Zaiontz is an LPC in the state of Texas. He has been providing counseling services to a variety of clients, who have sought help for many different types of mental health conditions, for over 5 years. Cody completed his undergraduate education in San Marcos, Texas at Texas State University and earned his bachelor's degree in psychology. He went on to complete his graduate school training in Counseling & Guidance at Texas A&M University San Antonio. His practicum training took place at the UT Health Science Center in San Antonio, Texas where he was trained in Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, Motivational Interviewing, Solution-Focused Brief Therapy, and crisis management. Upon graduating with his master's in counseling, Cody worked for 2 years helping individuals diagnosed with a serious mental illness (schizophrenia, bipolar disorder, etc.) in an inpatient psychiatric hospital. He then learned how to provide outpatient counseling services, both in-person and through a secure telehealth platform. In his private practice, he worked with adults dealing with substance abuse, PTSD, depression, anxiety, and family issues. He also helped his clients work towards weight loss goals, learn ways to improve sleep, learn ways to increase their social support system, and learn other skills that will help them live a happier, more fulfilled life. Cody operated his private practice until he joined Talkiatry in the fall of 2024.

Ellen Grant, LCSW

Staff Licensed Clinical Social Worker

Ellen Grant, LCSW, Eagala Certified, brings extensive experience working with adolescents, adults and families in treating mental health and substance use disorders. Ellen is a graduate of The College of Saint Rose, where she obtained a Bachelor's Degree in Social Work. She is a graduate of Fordham University, where she obtained a Master's Degree in Social Work. She obtained a post-graduate certification in Military Trauma from Adelphi University. Ellen is certified in equine-assisted psychotherapy and is learning through the Eagala model. She has been practicing in the field for 12 years. She believes in a person-centered approach to counseling and specializes in Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, and Motivational Interviewing. She is also certified in Seeking Safety.

Veronica McKnight, LCSW

Staff Therapist

Veronica McKnight received her Master's degree from the Hunter College School of Social Work in New York. She holds clinical social work licenses in Florida, Maine, Vermont and Wisconsin. Ms.McKnight's key areas of practice include depression, anxiety, trauma, communication in relationships, parenting challenges, compassion fatigue and grief and bereavement. Ms. McKnight specializes in Cognitive Behavioral Therapy with a strength based, solution focused approach. Ms. McKnight integrates Dialectical Behavioral Therapy and Motivational Interviewing techniques.  Ms. McKnight has been certified as a Compassion Fatigue Educator and a Certified Clinical Trauma Professional. Ms. McKnight has held leadership and clinical roles in community mental health centers, housing programs, hospitals and non-profit organizations.

I am proficient in assisting clients to navigate transitions in all aspects of the life span. Over the past 30 years, my experience has taught me that the most important aspect of therapy is the connection and comfort you feel with the person with whom you choose to share your personal struggles.

I like to listen to what patients are telling me about what is important to them and what they would like to address in therapy.  We can then start to set goals together and work towards the outcomes they want.  We always go at a pace that is comfortable to the client.

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Historically, Dr. Silverberg attended the University of Delaware, majoring in psychology and minoring in cognitive science.  After a master’s degree from the University of Phoenix, he went on to complete a Doctor of Behavioral Health degree from Arizona State University in 2011.

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Megan Crochet, MD

Staff Psychiatrist

Dr. Megan Crochet is board certified in Adult Psychiatry and has completed a fellowship in child and adolescent Psychiatry. Dr. Crochet attended medical school at Drexel University College of Medicine and completed her training at Mount Sinai School of Medicine, followed by Tulane University School of Medicine, where she was a chief resident. Dr. Crochet provides a therapeutic medication management visit, which incorporates therapeutic techniques tailored to the individual patient needs while adjusting medication doses. Her goal is to help patients manage their symptoms while working towards, over time, uncovering the root causes. This comprehensive process helps to empower her patients and provides hope and acceptance of their psychiatric challenges. If indicated, Dr. Crochet may believe that additional therapy is also needed and recommend that you bring a therapist into your care team to provide the best outcome. Dr. Crochet has worked in hospital systems, private practice, and most recently telemedicine. When not practicing, she enjoys all things water, cooking and spending time with her daughter and dog.

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Specialties
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
LGBTQIA+
States
Maryland
Virginia
Languages
English
Takes insurance
Virtual visits
years experience