Chelsea Karson, MD

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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Angie Catlin DNP has been working in mental health for over a decade. She has experience working inpatient, outpatient, and intensive outpatient clinics. She has also worked as a provider in residential care centers and long-term care. She began as a BSN nurse, after graduating from Pittstate University in Kansas, in the critical care field before finding psychiatry at an inpatient child and adolescent hospital. Working with young patients in crisis led her to want to continue her education to become a psychiatric provider to address lack of access to care for those with mental health needs. Angie continued to help ensure those in need have access to care, and assisting her patients obtain the best outcomes became her passion.

She then enrolled in a dual master’s program to obtain her Master’s in Nursing and Master’s in Business for health care administration as she wanted to gather as much knowledge as she could on the barriers to care and to address those barriers. After finishing her dual Master’s with a MSN and MBA/HA from University of Phoenix, she enrolled in the Doctor of Nursing Practice program at University of Missouri in Columbia to become a Psychiatric Nurse Practitioner. While in her Doctorate program she completed residencies in rural outpatient clinics, urban outpatient clinics, and nursing homes to understand the barriers for patients of all age groups in each level of care. Since graduating from Mizzou, Angie maintained her zealousness in making care available to all; working with diverse populations in every setting. She enjoys reading up on the latest research pertinent to her clients, including new medications and treatments on the horizon. Angie is an avid football fan and enjoys cooking, reading, live music, and spending quality time with her family including her Saint Bernard and two English bull dogs during her downtime.

Angie Catlin DNP has worked with patients suffering from anxiety, depression, OCD, PTSD, ADHD personality disorders, learning disabilities, insomnia, Autism, bipolar disorder, Alzheimer’s and dementia, Parkinson’s, Psychosis, Depression, Schizoaffective disorder, and schizophrenia. Angie has always been an advocate for those with mental health issues and is willing to do what is needed to help patient’s feel supported, educating her patients on current treatments and treatment options, and best practices. Moreover, Angie advocates for LGBT issues and understands the issues facing those who are LGBT in society.

She is compassionate about the care she provides as she wants patients to achieve their best life. She will always spend time with patients discussing medications to ensure decisions are a team decision between patient and provider. She has always included counseling and education as part of her practice to ensure her patient receive best evidenced based outcomes She believes that psychiatric care decisions should be made with the patient, not for the patient, so patients feel heard respected and understood.

Angie Catlin DNP begins her sessions with new patients by gathering a thorough history including family history, medical history, surgical history, medication and psychiatric history. This ensures that the whole patient is treated and their entire histories are considered in influencing how the patient came to her and what their issues may be. Angie is careful to listen to each patient and assess what is important to them along with goals they may have for their treatment. Angie collaborates with her patients in a team approach to develop treatment plans that the patient feels comfortable with in achieving their goals.  

She values open communication and individualized treatment plans that focus on each patient’s needs and the barriers they face helping to address those barriers so patients can achieve to live their best lives. Angie wants the best for all patients she treats and accepts her patients as they are and supports what they believe is vital to their needs. Angie is a firm believer that the patient knows what works for them and is always patient centered in her approach.

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.

Severine Dondina, PMHNP-BC, is a board-certified psychiatric nurse practitioner with licensure in Washington and Florida. She holds a Master of Science in Nursing from the University of Alabama at Birmingham and graduated summa cum laude with dual bachelor’s degrees in nursing and biomedical science. Her background spans outpatient, community, forensic, and crisis psychiatry, including leadership roles with Florida’s Assertive Community Treatment (FACT) and Multi-Disciplinary Forensic Teams.

Currently serving patients in Washington, Severine treats adults with ADHD, anxiety, depression, PTSD, and bipolar disorder. She brings a trauma-informed, strengths-based approach to care and is deeply committed to creating affirming spaces for LGBTQ+ and gender-diverse individuals. Her clinical style combines evidence-based medication management with warm, collaborative support.

Trilingual in English, French, and Spanish, Severine is known for her cultural sensitivity, clinical rigor, and authentic presence. She approaches each patient with curiosity, humility, and respect—believing healing begins with connection.

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Dr. Shahan Syed is a Board-Eligible Psychiatrist who offers personable, compassionate, and empathetic care. Before completing his residency in psychiatry, Dr. Syed graduated from International American University College of Medicine and recently completed his residency at Bergen New Bridge Medical Center in Paramus, NJ. He gained experience as a clinical researcher, emergency medical technician, and a registered nurse in both psychiatric and emergency departments prior to his formal training. This diverse background equipped him with valuable tools to deliver empathetic care to a wide range of patients with experience treating anxiety disorder, traumatic disorders, depressive and bipolar disorders, substance use disorders, ADHD, OCD, and psychotic disorders. During his residency, Dr. Syed also took on the role of chief resident, demonstrating a remarkable ability to educate both his patients and colleagues. Throughout his residency, Dr. Syed actively pursued additional training opportunities at various safety net hospitals in New Jersey to care for underserved populations.

Dr. Syed places significant importance on collaborating with patients and all relevant parties to gain a comprehensive understanding of the factors affecting the patient's life before making treatment recommendations. Additionally, Dr. Syed emphasizes the importance of lifestyle, sleep, mindfulness, and nutrition, and their impact on overall mental health. He has experience in utilizing interpersonal and supportive psychotherapy, along with principles of motivational interviewing and cognitive-behavioral therapy, to foster resilience and meaningful change in partnership with other mental health professionals involved in patient care.

Dr. Syed employs a range of therapeutic methods alongside medication management to ensure a thorough and holistic approach for every patient. His goal is to create a safe environment that encourages healing and wellness, enabling individuals to remain motivated and live their lives to the fullest.

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Background and credentials

Dr. Edelman is Board Certified in Psychiatry and Board Eligible in Child and Adolescent Psychiatry. She completed her psychiatry residency training at the Medical College of Georgia and SUNY Downstate, followed by a fellowship in Child and Adolescent Psychiatry at SUNY Downstate. Throughout her career, Dr. Edelman has practiced in various clinical environments, including inpatient child and adolescent psychiatric units, academic outpatient treatment clinics for adults and children, emergency psychiatric settings, and community psychiatry. She has over seven years of experience.

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Treatment approach

Dr. Edelman utilizes a collaborative, supportive, and patient-centered approach, combining pharmacotherapy with therapeutic modalities such as cognitive-behavioral therapy (CBT), psychodynamic therapy, supportive therapy, and interpersonal therapies. She treats a wide variety of conditions, including depression, anxiety, OCD, bipolar disorder, ADHD, learning disorders, substance use disorders, PTSD, and schizophrenia. Her goal is to partner closely with patients to meet their specific needs, achieve their personal goals, and enhance their overall quality of life.

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What you can expect in a first visit

Patients can expect their initial visit with Dr. Edelman to include a comprehensive psychiatric evaluation, during which she takes the time to understand each patient's individual concerns, goals, and history. She emphasizes collaborative planning of treatment, carefully integrating medications and tailored therapeutic interventions. Patients will experience a compassionate and supportive atmosphere designed to set clear expectations and foster progress toward their personal mental health goals.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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