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Carmen Orellana Martinez, MD

Staff Psychiatrist
Languages
English
Spanish
SPECIALTIES
Medication Management
Child/Adolescent

Education and training

  • Universidad Evangelica de El Salvador, MD
  • Southern Illinois University, Residency and Fellowship

Get to know

Carmen Orellana Martinez, MD

Dr. Carmen Orellana is a Staff Psychiatrist at Talkiatry who has been in practice for over 6 years, both in the U.S. and abroad. She is double board-certified in child and adolescent psychiatry and adult psychiatry. Dr. Orellana's practice focuses on medication management. She strives to provide exceptional medical care and has extensive experience in treating persons with diverse behavioral disorders and backgrounds. Dr.Orellana involves her patients in all decisions about their health, and provides care that is respectful of patient preferences, needs, and values. Typically, she would recommend evidence-based treatments to her patients and may, occasionally, believe that concurrent therapy is also needed. She would ask that you bring a therapist into your care team to provide the best outcome. Dr.Orellana received her medical degree from Universidad Evang�lica de El Salvador. Dr. Orellana completed a residency in Psychiatry and a fellowship in child and adolescent psychiatry at the Southern University School of Medicine in Springfield, Illinois. After completing her training, Dr. Orellana remained in the school, where she worked as an Assistant Professor of Child and Adolescent Psychiatry, supervising and teaching medical students, residents, and fellows, and treating patients with various psychiatric conditions. Dr. Orellana has experience in treating treatment-resistant mood disorders with electroconvulsive therapy (ECT) and transcranial magnetic stimulation (TMS).‍

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Megan Kelly Gilman, PMHNP

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Megan is a Board-Certified Psychiatric Mental Health Nurse Practitioner specializing in medication management and various therapeutic techniques. She earned a Master of Science in Nursing as a Psychiatric Nurse Practitioner from Regis College and has board certification from the American Nurses Credentialing Center (ANCC).

Megan has extensive experience in psychiatric settings, including private practice, inpatient facilities, and substance use treatment programs. She has worked on community initiatives, such as the Mobile Suboxone Van program, which provides treatment to individuals in high-need areas.

She utilizes evidence-based practices in treating clients with mood and anxiety disorders, ADHD, trauma, and substance use disorders, among other mental health disorders.

The first priority is establishing a therapeutic relationship and providing adequate support, which can substantially impact outcomes. The combination of medication management and therapy can effectively reduce symptoms and contribute to the remission of mental health symptoms.

The first session will involve a 60-minute psychiatric evaluation to gather history and discuss current symptoms and goals. Clients starting medication will need more frequent 30-minute follow-up appointments for medication management and therapy, ensuring a positive response to treatment.

Erin Snider, PMHNP

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Erin Snider, PMHNP, brings more than seven years of experience as an Advanced Practice Registered Nurse at Lindner Center of HOPE, a full-service psychiatric facility affiliated with the University of Cincinnati and Cincinnati Children’s Hospital. Her work has spanned the full spectrum of psychiatric care, including inpatient crisis intervention, partial hospitalization, and outpatient services. She holds a bachelor’s degree in psychology from the University of Kentucky and both a BSN and MSN from Wright State University. Erin also recently earned a Mindfulness and Yoga-Studies Certificate from the University of Cincinnati.

Erin prioritizes building a strong therapeutic relationship and values open communication to create a supportive environment for healing. She views psychiatry as a holistic practice, integrating evidence-based approaches that address mental, emotional, physical, and spiritual well-being. Patients working with Erin can expect compassion, respect, and a collaborative partnership in their care.

Erin begins each appointment with open conversation to better understand each individual’s story and experiences. She works with patients to identify their concerns, explore barriers to growth, and highlight strengths. Together, she collaborates on a treatment plan that aligns with the patient’s personal goals, ensuring care is both personalized and empowering.

Pressley Warrick, MD

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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.

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Christa DeFries, MD

Staff Psychiatrist

Background  and credentials    

Dr. Christa DeFries is a board-certified Adult Psychiatrist. She earned her  medical degree from UT Southwestern Medical School in Dallas, Texas, and  completed her residency in Adult Psychiatry at Baylor Scott & White in  Temple, Texas. Following residency, Dr. DeFries gained additional experience  treating homeless and formerly homeless populations in New York City,  particularly focusing on individuals with histories of trauma and substance  addiction, prior to joining Talkiatry.    

Treatment approach    

Dr. DeFries practices Adult Psychiatry, employing an integrative treatment  approach combining medication management, psychotherapeutic methods, and  lifestyle modifications. She recognizes that each patient benefits from a  personalized mix of these three aspects of care. Dr. DeFries specializes in  treating diverse psychiatric conditions, including those related to trauma,  substance addictions, and various mental health disorders.    

What you can expect in a first visit    

In a first visit with Dr. DeFries, patients can expect a comprehensive  evaluation aimed at understanding their individual mental health history,  specific concerns, and overall treatment goals. Dr. DeFries emphasizes an  individualized approach, carefully exploring the best combination of  medication, therapy, and lifestyle adjustments tailored specifically to each  patient's needs. Patients can anticipate an empathetic and collaborative  environment focused on their personal experiences and goals.    

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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Specialties
Medication Management
Child/Adolescent
States
Illinois
New York
Languages
English
Spanish
Takes insurance
Virtual visits
6 years experience