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Susannah Williams, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Perinatal Psychiatry
Phobias
Postpartum Depression
Tics/Tourette Syndrome
Geriatric

Education and training

  • The University of Alabama, BS
  • The University of Tennessee Health Science Center, Internship and Residency

Get to know

Susannah Williams, MD

Dr. S. Taylor Williams is a psychiatrist with Talkiatry. She is board-certified in psychiatry and has been practicing over 14 years. Dr. Williams received her MD from the University of Alabama School of Medicine at UAB. She completed her psychiatry residency at the University of Tennessee Health Science Center. Prior to joining Talkiatry, she held an academic appointment at UTHSC as Assistant Professor of Psychiatry and was the Clinical Director of the Memphis Mental Health Institute. She specializes in the treatment of young adults and LGBTQ patients. Her practice focuses on medication management.‍

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Ana Rodriguez, MD

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Dr. Rodriguez is an adult psychiatrist, who is fluent in Spanish and English. She completed residency at St Luke's-Roosevelt Hospital in New York City via Columbia University College of Physicians and Surgeons followed by a Fellowship in Forensic Psychiatry in a combined Cornell University - Columbia University program with the New York State Psychiatric Institute. She obtained her medical degree at the Pontificia Universidad Catolica Madre y Maestro in the Dominican Republic. Dr. Rodriguez is an adult psychiatrist and has worked with a wide array of patients across various medical settings including extensive experience in Telehealth. Her experience includes Kings County Hospital in Brooklyn, New York, in addition to outpatient experience in both clinics and correctional facilities. Dr. Rodriguez has experience treating patients with psychiatric illness who may also be suffering from medical comorbidities, such as obesity, hypertension, pain, and diabetes. She has been deeply involved with teaching and emphasizes psychoeducation while working in collaboration with her patients to help tailor their personalized treatment plan. Her primary focus has been on treating adults with depression, bipolar disorder, anxiety, ADHD, OCD, and PTSD. Dr. Rodriguez has an approachable, patient-centered style, combined with a passion for optimizing sleep as it pertains to management of a psychiatric illness and overall well-being. She offers supportive therapy as part of her medication management visits, and at times may also offer cognitive behavioral therapy to address underlying stressors which may be contributing to one's presenting ailments. She may also recommend including a therapist in your care team to optimize outcomes.

Derek Robben, MD

Staff Psychiatrist.

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.

Matthew Deise, PMHNP

Staff Nurse Practitioner

Matthew is a board-certified psychiatric mental health nurse practitioner and received his education in this specialty at Maryville University of St. Louis, Missouri.  He has been working in the mental health field for over 20 years and has provided care to patients in diverse care settings including psychiatric hospitals, outpatient mental health centers, psychiatric home health, and telepsychiatry.  Matthew is passionate about expanding access to high quality mental health care to all in need and greatly enjoys collaborating with patients from diverse backgrounds.  In his free time, he enjoys hiking, camping, reading, traveling, and searching for the best Mexican food around.  

Patients working with Matthew should know that he utilizes a very collaborative approach to patient care.  He does not assume that he knows what's best for patients but works closely with them to find the most appropriate and effective treatment plan for the unique individuals that he treats.  For Matthew, safety is always the first priority, but he does not believe in a "one size fits all" approach to mental health care and is focused on tailoring the treatment to the patient.  Matthew utilizes an empathic approach to mental health treatment and patients will feel heard and valued.  

Matthew's process for working with patients includes a thorough psychiatric evaluation at the initial appointment to make sure we are getting to the right diagnosis and remaining on track to improve the patient's mental health. Follow-up appointments are focused on monitoring for progress or regression and working collaboratively to meet mutually agreed upon goals. Collaboration is key!

Austin Lin, MD

Staff Psychiatrist

Dr. Austin Lin is a double board-certified adult and addiction psychiatrist who has been in practice for over 9 years. At the center of Dr. Lin's clinical approach is a strong emphasis on establishing trust and using a collaborative approach to help patients develop an individualized and cohesive plan so that they are able to achieve their goals. Dr. Lin's practice focuses on medication management. Typically, he offers this in conjunction with supportive therapy, motivational interviewing, and/or cognitive behavioral therapy in 30-minute follow-up visits. Occasionally, Dr. Lin may recommend that additional therapy is needed and ask that you bring a therapist into your care team in order to provide the best outcome. Dr. Lin received his medical degree from St. George's University School of Medicine. He went on to complete his residency in psychiatry at Harvard South Shore, an affiliate of Harvard Medical School, where he served as Chief Resident and earned his 360° Professionalism award. He then had additional training in Addiction Psychiatry through his fellowship at the University of Texas Southwestern Medical Center. After completing training, Dr. Lin has worked as an Addiction Psychiatrist and Director of Adult Services in the Trauma and Resilience Center (TRC) at the University of Texas Health Science Center at Houston (UTHealth). He specialized in treating patients with a history of depression, anxiety, trauma, and substance use disorders. Dr. Lin has held an academic appointment at UTHealth, and he has spent his professional career supervising and teaching medical students and psychiatry residents.

Nidhi Sharoha, DO

Staff Psychiatrist

Dr. Nidhi Sharoha is a double board certified psychiatrist in Psychiatry and Consultation Liaison Psychiatry. She completed her undergraduate training at Stony Brook University followed by medical school at New York Institute of Technology College of Osteopathic Medicine. She has completed both a Residency in Psychiatry and Fellowship in Consultation Liaison Psychiatry at Nassau University Medical Center.

Dr. Sharoha has held academic appointments at Stony Brook University Hospital, practicing as a consultant psychiatrist and Associate Director of Consultation Liaison Psychiatry Fellowship. “Dr. Sharoha has accrued experience and expertise in Perinatal Psychiatry through her training in CL psychiatry. Currently, Dr. Sharoha is serving as President Elect of Long Island District Branch  of APA. She  has formerly served as Associate Director of Clinical Education here at Talkiatry.” She has contributed to education, training and supervision of trainees and physicians throughout her career.   She continues to stay up to date with current psychiatric knowledge.

She has a genuine interest in treating a vast array of psychiatric disorders including depression, anxiety, bipolar disorders, post-traumatic stress disorders, and obsessive compulsive and related disorders. She also has experience in treating patients with medical comorbidities and has training in issues related to women's health. Patients looking for a psychiatric provider will find that Dr. Sharoha has a gentle approach to diagnosis and management of her patients. She believes in the principle that body and mind are interconnected, which allows her to provide comprehensive care to all of her patients.

Tammara Davis, MD

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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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Specialties
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Perinatal Psychiatry
Phobias
Postpartum Depression
Tics/Tourette Syndrome
Geriatric
States
Tennessee
Languages
English
Takes insurance
Virtual visits
14 years experience