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Alexander Van-Den-Ende, DO

Staff Psychiatrist
Languages
English
SPECIALTIES
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Geriatric
ADHD

Education and training

  • University of Washington Bachelor of Science (BS)
  • Pacific Northwest University of Health Sciences Medical Doctor/Osteopathic Doctor (MDDO)

Get to know

Alexander Van-Den-Ende, DO

Dr. Alexander Van-Den-Ende is a board-certified adult psychiatrist who recently completed his psychiatry residency training at Authority Health in Detroit, Michigan. Beyond his proficiency in medication management, Dr. Van-Den-Ende has training in talk therapy and novel treatments like Transcranial Magnetic Stimulation. He is pleased with the increase in access to mental healthcare that comes through telemedicine, and is committed to providing high quality care to his patients. Dr. Van-Den-Ende's approach emphasizes patient insight and mindfulness, guiding individuals on a journey towards self-awareness and mental well-being.

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Madiha Halim, MD

Staff Psychiatrist

Dr. Madiha Halim, MD, has experience practicing psychiatry in both Pakistan and the United States, giving her a well-rounded understanding of mental health across diverse cultures. She earned her medical degree from Army Medical College in Pakistan and completed her psychiatry residency at the University of North Dakota School of Medicine and Health Sciences, where she also served as Chief Resident Physician. In this role, she gained extensive academic and administrative experience while mentoring junior residents and contributing to program development.

Dr. Halim values open communication and strives to create a therapeutic environment rooted in empathy, warmth, and respect. She collaborates with patients to develop individualized treatment plans that integrate cultural, biological, psychological, and social factors. While her primary focus is on medication management, she often incorporates supportive therapy, cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), and motivational interviewing for a holistic and patient-centered approach.

Dr. Halim begins by taking time to understand each patient’s background, concerns, and goals during the initial session. She emphasizes collaboration, ensuring patients are informed and involved in their treatment decisions. Her process fosters empowerment and partnership, helping patients gain insight, build coping strategies, and achieve long-term mental wellness.

Mark Helms, MD

Staff Psychiatrist

Dr. Helms is a graduate of the University of Arizona College of Medicine. He completed his General Psychiatry and Child/Adolescent fellowship training at the University of Texas, Health Science Center at San Antonio. He has over 25 years of experience as a psychiatrist treating patients of all ages (child, adolescent, and adult�including geriatric) while working in a multitude of treatment settings including outpatient clinics and psychiatric hospitals. He also has several years of experience working as a psychiatric consultant for medical-surgical hospitals, seeing an extensive variety of patients on all floors of the hospital from mother-baby to pediatrics, as well as adult patients on the medical and surgical floors. Dr. Helms takes with him into each patient encounter, his wide breadth of experience and his genuine care and concern for each and every individual patient. He provides both medication treatment and talk therapy. He understands that many patients greatly benefit from either short or long term medication treatment; however, he also understands that talk therapy can oftentimes lead to significant, long lasting positive change, personal growth, and improvements in occupational and relationship success. Moreover, patients will always find Dr. Helms encouraging and supportive as they search for greater meaning and purpose in their lives.

Nathan Schulz, MD

Staff Psychiatrist

Dr. Nathan Schulz attended the Ohio State University College of Medicine where he received his degree before completing a residency in psychiatry at the University of Illinois, Chicago. After several years working with veterans at the Jesse Brown VA in Chicago, he returned to his home state of Iowa in 2022. Since then, he has continued to work with a wide variety of clients and conditions in both inpatient and outpatient settings, including at the University of Iowa and Clive Behavioral Health hospital.

Dr. Schulz values open, honest, and ongoing dialogue about how mental health treatment can improve wellbeing and lead to healing. Over time, he tailors treatment recommendations based on individual needs, which may include medication, therapy, lifestyle changes, or other approaches. He avoids a one-size-fits-all model and creates an environment where patients feel respected, understood, and supported as unique individuals.

In the first meeting, Dr. Schulz works to understand each patient’s goals, experiences, and preferences. Some arrive knowing what they want, while others are new to exploring mental health challenges. His goal is to meet patients where they are and adjust treatment focus as needs evolve. He emphasizes collaborative decision-making, clearly discussing treatment options, pros and cons, and next steps, while ensuring patients feel informed and empowered throughout care.

Kristina Schnitzer, MD

Staff Psychiatrist

Background and credentials

Dr. Kristina Schnitzer is a board-certified psychiatrist. She earned her medical degree from the New York University School of Medicine and completed her residency in Adult Psychiatry at the Massachusetts General Hospital/McLean Adult Psychiatry Residency Program. She further specialized by completing a one-year clinical and research fellowship in Public and Community Psychiatry through Massachusetts General Hospital and the Massachusetts Department of Mental Health. In addition to her medical training, she holds a Master of Public Health (MPH) from the Harvard T.H. Chan School of Public Health. She has over three years of experience practicing psychiatry across inpatient, emergency, and outpatient settings.

Treatment approach

Dr. Schnitzer focuses on medication management as the foundation of her treatment approach, typically combining it with supportive or emotionally focused therapy during 30-minute follow-up visits. She takes a collaborative and individualized approach to patient care and, when needed, may recommend additional therapy by integrating a therapist into the care team to ensure the best possible outcomes. She has experience treating a broad range of psychiatric disorders in various clinical settings.

What you can expect in a first visit

Patients can expect a thorough and structured evaluation in their first visit, where Dr. Schnitzer carefully assesses their symptoms, medical history, and treatment goals. She emphasizes open communication and collaboration, ensuring that patients are fully involved in shaping their treatment plans. Follow-up visits typically last 30 minutes, during which she monitors progress, adjusts treatment as needed, and may recommend additional therapeutic support for comprehensive care.

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.

Jennifer Yen, MD

Staff Psychiatrist

Dr. Jennifer Yen is a double board-certified child, adolescent, and adult psychiatrist who has practiced in a variety of settings, including private, community, and academic medicine. She obtained her medical doctorate and general psychiatry residency at the University of Texas Medical School at Houston before completing her child and adolescent psychiatry fellowship at Baylor College of Medicine. She is currently a Clinical Professor of Psychiatry and Behavioral Sciences at Baylor College of Medicine and has authored multiple peer-reviewed publications on pediatric mental health. Dr. Yen is also a Distinguished Fellow of the American Academy of Child and Adolescent Psychiatry and has been on the editorial board of Clinical Psychiatry News. Dr. Yen believes in a collaborative treatment approach that includes use of pharmacology, therapeutic interventions, and support networks. While versed in a broad range of mental disorders, she is most passionate about anxiety, depression, minority mental health, and acculturation and intergenerational conflicts. She enjoys finding creative ways to address ongoing treatment issues, and utilizes digital media in the treatment setting.

Trudy Warner-Phillips, PMHNP

Staff Nurse Practitioner

Trudy Warner-Phillips, PMHNP, is a board-certified psychiatric nurse practitioner with over 25 years in nursing and 7+ years in psychiatric care. Her experience spans outpatient, inpatient, and telehealth settings, where she treats conditions such as anxiety, depression, PTSD, mood disorders, and ADHD. She is passionate about delivering thoughtful, evidence-based care in a supportive and accessible virtual environment.

Trudy’s approach is grounded in trust, respect, and collaboration. She values open, honest communication and aims to create a space where clients feel heard, safe, and empowered. By understanding each person beyond their symptoms, she tailors care to support individual challenges, strengths, and goals.

Initial sessions involve a thorough assessment of medical and psychiatric history, current concerns, and past treatments. Trudy then works with clients to develop a personalized care plan focused on their most pressing symptoms. Her treatment may include medication management, supportive therapy, and lifestyle recommendations to promote lasting emotional well-being.

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Specialties
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Geriatric
ADHD
States
Michigan
Ohio
Languages
English
Takes insurance
Virtual visits
years experience