Peter Szeibel, MD

Dr. Michael Gravenstein earned his medical degree from the University of Florida College of Medicine, where he also completed his psychiatry residency. During training, he was recognized with multiple awards, including the Malcom Randall VA Resident of the Year Award, the Ross A. McElroy Psychotherapy Award, and the John “J.D.” Dorian Award for best sense of humor. He has worked across outpatient, inpatient, and consult liaison settings, and has experience treating a wide range of conditions including depression, anxiety, ADHD, OCD, personality disorders, and transitional age concerns. He also has expertise working with LGBTQIA+ patients and provides psychodynamic, CBT, and supportive therapies.

Dr. Gravenstein believes in a comprehensive approach to treatment that integrates medications, therapy, and lifestyle interventions. While medications can be very effective, he views them as just one part of a broader treatment plan tailored to each patient’s needs. He emphasizes individualized care and sees treatment as a team effort, meeting patients where they are and progressing at a pace they feel ready for.

Dr. Gravenstein strives to create a warm, collaborative environment that fosters open communication and genuine connection. He may challenge patients therapeutically but always with careful attention to their readiness and comfort. His goal is to build trust so that meaningful conversations and progress can occur. For him, success is always shared—when patients succeed, they succeed together; when challenges arise, they regroup and move forward together.

Dr. William Richie is an adult General and Forensic Psychiatrist. He earned his undergraduate and medical degrees from the University of Missouri Kansas City, completed his psychiatry residency at Howard University Hospital in Washington, DC, and later served as a Major in the United States Air Force. After his service, he returned to Howard as Chief of the Inpatient Psychiatric Service and completed fellowship training in Forensic Psychiatry at LSU Medical Center. Dr. Richie specializes in personality and dissociative disorders, pre-trial evaluations, and is especially interested in Men’s Mental Health.

Dr. Richie brings decades of clinical and academic experience to his practice. He believes that the foundation of effective care lies in a strong, respectful patient-psychiatrist relationship. His interpersonal and dialectical approach fosters collaboration, trust, and deeper understanding.

Dr. Richie takes time to listen carefully, ask thoughtful questions, and offer meaningful feedback. He works closely with each patient to develop a personalized treatment plan that supports long-term well-being and meaningful progress.

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Dr. Iris Guerrero Urena is double board-certified in psychiatry and consultation-liaison psychiatry. She received her medical degree from Universidad Iberoamericana in the Dominican Republic and went on to complete psychiatric residency at Lincoln Hospital in New York City. Dr. Guerrero then completed a consultation liaison fellowship at Morningside and West Mount Sinai Hospital in New York, further acquiring proficiency in caring for patients with complex medical and psychiatric comorbidities. After completing training, Dr. Guerrero worked in an acute inpatient unit and as a psychiatric consultant for patients admitted to medical units in Oregon. Dr. Guerrero Urena focuses on medication management while also implementing elements of supportive, dialectical behavioral, and cognitive behavioral therapy within each session to fully address individual needs. At times, Dr. Guerrero Urena may recommend a therapist for additional therapy. Dr. Guerrero Urena is experienced in treating a wide range of psychiatric conditions including depression, bipolar disorder, anxiety, PTSD, OCD.

Justin Jones is a board-certified adult psychiatrist based in Las Vegas, NV. Originally a Mississippi native, he completed undergraduate studies at the University of Mississippi. He subsequently completed medical school and post-graduate residency training at the University of Mississippi Medical Center. His practice focuses on making progress towards therapeutic goals by utilizing a specifically tailored combination of medication management and psychotherapy depending on any given individual's needs. He understands how difficult it can be to begin seeing a new psychiatrist, and does his best to create a safe, welcoming environment that patients can feel comfortable in.

Dr. Namrata Shah is a board-certified adult psychiatrist who completed her undergraduate training at the University of Wisconsin-Madison and earned her medical degree at the American University of Antigua. She completed her psychiatry residency at Creedmoor Psychiatric Center with training at New York-Presbyterian/Columbia University Irving Medical Center.

In addition to experience providing inpatient and outpatient care, Dr. Shah has worked with a wide variety of patient populations. The conditions she treats include depression, bipolar disorder, anxiety disorders, panic disorder, OCD, and ADHD. In addition, Dr. Shah is particularly interested in issues related to women’s mental health, including perinatal mental health issues.

Dr. Shah emphasizes the importance of a strong doctor-patient therapeutic alliance and a patient-centered approach. To provide the best care, she believes in compassion, open communication, and collaboration. As a primary treatment method, she combines psychopharmacological medication and supportive therapy.

Dr. Kirk Carruthers is a board-certified psychiatrist with experience in both outpatient and inpatient psychiatry, as well as addiction medicine. He completed his medical degree at Morehouse School of Medicine and trained at University Hospitals – Case Medical Center, where he completed general psychiatry residency and fellowships in addiction and community psychiatry. His experience includes roles in community mental health, academic teaching, and the VA system. Outside of work, he enjoys music production, soccer, spending time with loved ones, and all dogs.

Dr. Carruthers brings a casual, easygoing communication style to create a comfortable space where patients feel at ease. He emphasizes forming strong therapeutic bonds based on trust, and combines supportive therapy with medication management. He encourages collaboration with therapists and uses evidence-based treatment approaches tailored to each individual’s needs.

Dr. Carruthers begins with a thorough understanding of each patient's concerns, history, and goals. He then creates a personalized treatment plan and works collaboratively with the patient to reach their goals, adjusting care as needed for ongoing progress.

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