Esha Garg, DO

Angelique Umutesi is a Licensed Clinical Social Worker with experience in outpatient mental health, school-based settings, and crisis intervention. She earned her Master of Social Work from the University of Texas at San Antonio and is completing her Doctor of Social Work at the University of Kentucky, focusing on Military Behavioral Health. She is a Certified Clinical Trauma Specialist with additional training in grief, global mental health, and refugee trauma.

Therapy with Angelique is relational, grounded, and collaborative. She offers a space where clients feel safe, seen, and supported—free from pressure to have it all figured out. She values transparency and cultural humility, bringing warmth, curiosity, and gentle honesty to each session. Whether facing trauma, loss, identity shifts, or faith questions, Angelique walks with clients as they reclaim their voice and story.

Angelique begins by building a strong foundation—exploring your history, goals, and values. She collaborates with clients to create personalized treatment plans, drawing from IFS, ACT, and narrative therapy through a trauma-informed lens. Integrating spiritual and cultural frameworks when relevant, she ensures therapy stays connected, meaningful, and sustainable throughout the journey.

Dr. Irene Pastis is a board-certified psychiatrist who specializes in adult psychiatry.  She completed residency training at East Carolina University in both internal medicine and psychiatry.  After residency, she pursued her passion in psychiatry and stayed on as a clinical assistant professor in the department of psychiatry at East Carolina University.  In this role she specialized in treating adults with mental illness in both the inpatient and outpatient settings.  She has spent a considerable amount of time teaching residents and medical students and has published several papers focusing on the neuroscience pathways of mental health conditions.  In her daily practice, Dr. Pastis focuses on evidence-based treatments utilizing the latest clinical guidelines and current approved treatments.  In addition to medication management, she also incorporates psychotherapy in the treatment of mental health conditions.  Dr. Pastis is passionate about taking a collaborative approach with her patients to help them reach their potential.

Dr. Pressley Warrick is a double board-certified psychiatrist specializing in general psychiatry and child and adolescent psychiatry. Dr. Warrick currently practices full-time, offering comprehensive psychiatric care to children, adolescents, and adults. She previously established and led a Behavioral Health Clinic integrated within a Family Medicine Practice. Prior to this role, Dr. Warrick provided dedicated psychiatric care at a private psychiatry practice for over a decade.

Dr. Warrick earned her medical degree from the Medical University of South Carolina, completed residency training at Baylor College of Medicine's Menninger Department of Psychiatry and Behavioral Sciences, and pursued additional specialization through a Child and Adolescent Psychiatry fellowship at Palmetto Health/USC School of Medicine.

Known for a collaborative and holistic treatment approach, Dr. Warrick emphasizes individualized care and evidence-based practices to support patients’ mental wellness. Her professional excellence has earned recognition as Sumter’s Best Psychiatrist for consecutive years.

Dr. Warrick’s preferred treatment modalities include medication management, psychodynamic psychotherapy, and supportive psychotherapy. She specializes in treating depression, anxiety, ADHD, autism, OCD, bipolar disorder, and PTSD. Her typical approach for new patients involves taking a detailed patient history, establishing rapport, and setting clear treatment goals in partnership with her patients.

Dr. Jessica Marz is a board-certified psychiatrist who completed her undergraduate studies at the University of Florida and earned her medical degree from the Florida State University College of Medicine. She went on to complete her psychiatry residency at the University of Florida College of Medicine Jacksonville. Dr. Marz treats adults experiencing a variety of mental health concerns, including anxiety, depression, PTSD, OCD, ADHD, bipolar disorder, and adjustment-related challenges.

Dr. Marz is a compassionate and thoughtful psychiatrist committed to holistic, patient-centered, evidence-based care. She approaches each individual with warmth and without judgment, fostering a therapeutic environment built on open communication and trust. She believes that strong rapport is essential to achieving meaningful progress in treatment.

Dr. Marz combines medication management with supportive psychotherapy, incorporating cognitive-behavioral techniques and motivational interviewing. She customizes each treatment plan to align with the patient’s personal goals and evolving needs, recognizing that healing is a highly individualized journey.

Cherese Allen is a Licensed Professional Counselor with extensive experience working with adolescents, teens, and adults. She completed her undergraduate studies at the University of Houston and earned her master's degree from Houston Christian University. Additionally, she completed an internship at a private practice in Texas. Upon obtaining her license, she achieved certifications in Dialectical Behavior Therapy, Eye Movement Desensitization and Reprocessing, Shame-Informed Therapy, and Eating Disorders.

With years of experience in both education and private practice, Cherese has helped individuals, couples, and families overcome a wide range of mental health challenges. Her expertise includes, but is not limited to, addressing depression, anxiety, self-esteem issues, mood disorders, career changes, and major life transitions.

Cherese employs a holistic approach that integrates Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, Solution-Focused Therapy, and Person-Centered Therapy. She believes that with the right tools, you can conquer many obstacles and reach your desired destination. Cherese looks forward to supporting you on your journey!

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Dr. Agnes Tolentino is a board-certified adult psychiatrist with over 20 years of practice experience.  She obtained her undergraduate degree at the University of the Philippines and completed medical school at the University of the East.  She finished her psychiatry residency at the Harvard South Shore program as chief resident in her final year.  She has a strong background in psychotherapy as an adjunct to medication management.  She has extensive experience in treating PTSD, medically ill patients, elderly patients and those with terminal illnesses. She spent the last 15 years treating the geriatric population and those adjusting to co-morbid medical problems.  

She is an empathic listener and collaborative clinician, focused on treating the whole person.  She emphasizes the need to use healthy coping mechanisms as well as lifestyle changes to complement medication management.  In keeping with the “whole person” focus, the role of physical well-being is important. A thorough medical history will be obtained on your initial appointment.  

Gathering a thorough psychiatric and medical history is paramount in a successful therapeutic relationship.  And with time, a trusting therapeutic environment should be fostered.

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