Skip to main content

Earl Andrew De Guzman, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
Medication Management
ADHD
Anxiety
Depression
Obsessive-compulsive disorder (OCD)

Education and training

  • Ross University, School Of Medicine (Doctor of Medicine)

Get to know

Earl Andrew De Guzman, MD

Dr. Earl De Guzman is a psychiatrist who values therapeutic partnership, working with patients to balance symptom relief with meaningful self-exploration. He earned his BS in Psychology from the University of California, Davis, and his MD from Ross University School of Medicine. He completed his psychiatry residency at Los Angeles County + University of Southern California Medical Center and a consultation-liaison psychiatry fellowship at Stanford University Medical Center. He is triple-board-certified in psychiatry, consultation-liaison psychiatry, and addiction medicine, and holds psychoanalytic psychotherapy training certification from the Psychoanalytic Center of California. Currently, he is a psychoanalyst-in-training at the New Center for Psychoanalysis. His expertise spans medication management, supportive therapy, and psychodynamic therapy.

Dr. De Guzman takes a collaborative, patient-centered approach, creating a warm and nonjudgmental environment. He listens deeply, asks thoughtful questions, and encourages honest exploration of symptoms and underlying patterns. He values authenticity, curiosity, and respect for each patient’s unique experiences. While symptom relief is important, his goal is to foster self-understanding and long-term growth. He works best with patients open to collaboration and motivated for change, whether through medication management, therapy, or both.

Dr. De Guzman begins with a consultation phase to ensure a good fit, listening carefully to understand each patient’s challenges and goals. Together, he and his patients build a working alliance by clarifying difficulties, identifying realistic changes, and exploring deeper patterns. When appropriate, he prescribes medication thoughtfully, aiming to support therapy rather than replace it. Each session integrates supportive and psychodynamic elements, combining medication review with therapeutic dialogue. Treatment plans are regularly revisited, allowing flexibility and growth, with the ultimate aim of empowering patients toward lasting change.

Get matched with a clinician like this one

Ready to book your first appointment? Take our 10-minute assessment. We’ll match you with a clinician who meets your needs, has availability, and takes your insurance.

Get started
More Clinicians

Sherra StClair, PMHNP

Staff Nurse Practitioner

Sherra St. Clair is a board-certified Psychiatric Mental Health Nurse Practitioner with over a decade of experience supporting individuals with a wide range of mental health concerns. Her areas of expertise include attention deficit hyperactivity disorder (ADHD), depressive and anxiety disorders, obsessive-compulsive disorder (OCD), bipolar disorder, and trauma-related conditions.

She completed her advanced nursing degree at the University of Wyoming, where she was recognized for her compassionate and welcoming approach to patient care. Before becoming a nurse practitioner, Sherra was inspired to pursue further education while working as part of an inpatient treatment team that included psychiatrists, psychologists, patients, and their families. Witnessing the profound improvements patients experienced after a crisis motivated her to transition toward outpatient and preventative care.

Prior to her nursing career, Sherra worked as a medical illustrator and animator, having studied at the University of Michigan’s medical school. She enjoyed creating educational materials for patients, physicians, and attorneys.

Sherra is passionate about working with individuals of all genders and socioeconomic backgrounds. She uses a collaborative, strengths-based approach that incorporates evidence-based medication management, psychotherapy, and patient education. She believes each person is the expert in their own life and strives to empower individuals to build on their self-worth, progress, and potential.

Gregory Miller, DO

Staff Psychiatrist

Gregory Miller, DO, is an adult psychiatrist who prioritizes understanding his patients by first listening to their stories. He collaborates with them to develop both pharmacological and non-pharmacological solutions aimed at improving their functionality. Dr. Miller emphasizes that functioning better often leads to feeling better. Whenever possible, he approaches treatment within the context of the family system surrounding the individual. Raised in South Carolina, and now residents of Florida, Dr. Miller and his wife of 31 years have six children. He enjoys outdoor activities and team sports and is an avid fan of Tolkien and C.S. Lewis. He at times incorporates analogies from their works into therapy if appropriate.

Sara Mateo, MD

Staff Psychiatrist

Dr. Sara Mateo holds the position of staff Psychiatrist at Talkiatry. She is a board-eligible adult Psychiatrist. Dr. Mateo completed her Medical degree at the University of Benghazi- Faculty of Medicine and finished General Psychiatry Residency training at Tower Health/DrexelPhoenixville Hospital. Throughout her career, Dr. Mateo has actively contributed to various leadership roles and committees, demonstrating her commitment to advancing medical education and promoting diversity in the field. During her training, she generously shared her knowledge through educational presentations and lectures, fostering the growth of fellow trainees and medical students. Dr. Mateo is dedicated to creating a therapeutic environment characterized by warmth, empathy, and nonjudgmental support. Her approach involves collaborating with patients to develop individualized treatment plans that consider cultural, biological, psychological, and social factors. With a primary focus on medication management, Dr. Mateo's keen interest in psychotherapy is evident, as she often integrates supportive therapy, cognitive behavioral therapy, and psychodynamic psychotherapy during 30-minute follow-up visits to optimize wellness and recovery. Dr. Mateo brings a wealth of experience in caring for individuals of diverse ages and backgrounds, adeptly addressing a wide spectrum of conditions. Her expertise extends to treating depressive disorders, bipolar disorders, anxiety disorders, trauma and stress related disorders, ADHD, OCD, Insomnia, psychotic disorders; she also has experience treating individuals with medical comorbidities.

Jillian Saad, MD

Staff Psychiatrist

Dr. Jillian Saad is a board-certified adult psychiatrist who specializes in patient-centered care. She has been practicing for over 8 years in private practice and academic medicine .Dr. Saad focuses on medication management in 30-minute follow-up visits in conjunction with supportive and emotionally focused therapy. She takes a patient-centered approach that acknowledges all the psychosocial aspects of each individual to ensure they receive the most effective treatment possible. She received her medical degree from UMDNJ Robert Wood Johnson Medical School in Piscataway, NJ, then moved to Pennsylvania to complete her residency at Thomas Jefferson University Hospital in Philadelphia. Upon completion of training, Dr. Saad went into private practice for 5 years in southern NJ where she treated children, adolescents, and adults with a wide array of psychiatric disorders. She then went into academic medicine at Cooper University Hospital in Camden, NJ, where she served as the Associate Program Director of the Psychiatry Residency Program supervising and teaching both residents and medical students .Dr. Saad has experience working with a broad range of psychiatric disorders including mood disorders, PTSD, OCD, and ADHD. She also has a strong interest in Women's Mental Health and alternative treatment options.

Rebecca Farias, MD

Staff Psychiatrist

Dr. Farias is a board-certified physician in both adult and child & adolescent psychiatry, with a focus on the diagnosis and treatment of depressive disorders, anxiety disorders, trauma- and stressor-related disorders, and ADHD. Dr. Farias graduated magna cum laude with a Bachelor of Science degree from the University of Houston, majoring in Biology with a minor in Chemistry. She then pursued her medical education at Texas Tech University Health Sciences Center, earning her Doctor of Medicine degree. Dr. Farias completed a three-year psychiatric residency at TTUHSC, followed by fellowship training in child and adolescent psychiatry. She completed her first year of fellowship at the University of Texas Medical Branch in Galveston and her second year at TTUHSC. With a diverse clinical background, Dr. Farias has gained experience in a variety of settings, including academic psychiatry, consult liaison psychiatry, intensive outpatient programs (IOP), partial hospitalization programs (PHP), emergency psychiatry, and outpatient psychiatry. This broad range of experience allows her to provide comprehensive, individualized care to patients at all stages of life. Dr. Farias takes a holistic approach to treatment, incorporating both medication management and psychotherapy. She utilizes principles from Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and supportive psychotherapy, recognizing that a combined approach leads to better outcomes for patients.

Karel Routhier, MD

Staff Psychiatrist

Dr. Routhier was born in Quebec, Canada. She attended medical school at Ross University School of Medicine and graduated in three years with high honors. She trained as a psychiatry resident at Case Western Reserve School of Medicine in Cleveland, OH where she served as a junior attending and the medical student coordinator. She then was recruited by Monterey County Behavioral Health, CA as a clinical psychiatrist where she provided medication management and psychotherapy services to over 400 patients over the course of five years. She also created and led two dialectical behavior therapy groups for teens and young adults while training therapists and social workers to become group facilitators.

Dr. Routhier firmly believes in the mind-body connection. She feels that when the mind suffers, the body hurts as well and vice versa. As a result, she has developed a holistic approach to psychiatry and is comfortable offering a wide array of treatment modalities such as breathwork, dialectical behavior therapy, guided meditation, supportive psychotherapy, behavioral activation and medication management. She maintains that autonomy and a thorough understanding of one’s diagnosis and prognosis are critical for progress and healing. Her broad range of worldly experiences gives her the ability to work in a non judgemental, open-minded and authentic fashion. She connects with clients with ease and is passionate about self-awareness, constant evolution and empowering people so they can find their own way to happiness and health. She pushes her clients to find ways to build a life worth living, way beyond the goal of symptom resolution typical to psychiatry.

1. Getting to know you/understanding your “why”. Why are you seeking mental health treatment and why now? 2. Establish a list of issues and improvement zones. 3. Creating therapeutic goals. What do you want to work on? 4. Choosing treatment modalities to directly address these goals within a specific time frame. I provide updated and evidence-based information, and YOU choose what we do. 5. Figuring out the root causes to problems, symptoms and maladaptive behaviors/habits. How did this all start? Where does it come from? 6. Regular check-ins on how the treatment plan and therapeutic relationship are working for you. Are we a good fit? Are we meeting your goals/expectations? If not, back to the drawing board!

Ready to get matched?

Start our short assessment
Specialties
Medication Management
ADHD
Anxiety
Depression
Obsessive-compulsive disorder (OCD)
States
Texas
California
Languages
English
Takes insurance
Virtual visits
years experience