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Theresa Colberg, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Phobias
Tics/Tourette Syndrome

Education and training

  • Temple Medical School, MD
  • Mount Sinai Beth Israel, Residency

Get to know

Theresa Colberg, MD

Dr. Theresa Colberg is a board certified adult psychiatrist. She offers guidance with navigating difficult and painful emotions that may result from stressful life situations, such as the loss of or separation from a loved one, work related stressors, burn out, adult and childhood trauma, OCD and mood disorders including major depressive disorder, bipolar disorder, and various anxiety disorders. Within a safe, and supportive working relationship, Dr. Colberg will strive to reach an understanding of your unique situation, identify the issues that are interfering with progress, and develop a plan to better identify and achieve your goals.

Previous to joining Talkiatry, Dr. Colberg served as a clinical psychiatrist for the VA Healthcare System, providing care for veterans with a predominant focus on treatment of post traumatic stress disorder. She has also worked collaboratively as an integrated psychiatrist for a primary care FQHC, treating primarily trauma and stressor related disorders within a primary care setting.

Dr. Colberg completed her Psychiatry Residency from Mount Sinai-Beth Israel in New York City and obtained her medical degree from Temple Medical School in Philadelphia. She offers 60-minute initial appointments and 30-minute follow-up appointments, and she won't hesitate to collaborate with other mental health experts as necessary to better support your needs.

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Thomas Ittoop, MD

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Thomas Ittoop, MD is a psychiatrist with experience practicing in both academic and community settings. He earned his medical degree from Central Michigan University and completed his psychiatry residency at Baylor College of Medicine. His clinical work is grounded in thoughtful, patient centered care that combines medical rigor with a deep respect for the complexity of each individual’s life.

Dr. Ittoop fosters a warm, collaborative environment grounded in genuine human connection. He values exploring the deeper patterns that shape emotional life and the meaning beneath symptoms. Patients can expect transparency, clear communication, and shared decision making that honors their strengths, goals, and long-term well-being while helping them cultivate resilience and greater self-understanding.

Treatment begins with a thorough evaluation exploring symptoms, personal and family history, personality patterns, and the changes patients hope to achieve in their lives. From there, Dr. Ittoop works with each patient to develop a personalized treatment plan that includes thoughtful psychiatric medication management, supportive psychotherapy, and ongoing follow up. While he frequently works with patients experiencing anxiety and related conditions, his practice does not include prescribing benzodiazepines such as Xanax, Ativan, or Klonopin. Care instead focuses on evidence-based treatments that support lasting stability and deeper psychological understanding.

Andrew Lelin, MD

Staff Psychiatrist

Background  and credentials    

Dr. Andrew Lelin is a board-certified Psychiatrist in Adult Psychiatry. He  received his bachelor's degree from Johns Hopkins University and a master's  in Medical Humanities, Compassionate Care, and Bioethics from Stony Brook  University. Dr. Lelin earned his medical degree from Hofstra-Northwell School  of Medicine and completed his residency at Rutgers-Robert Wood Johnson School  of Medicine, where he specialized in advanced psychopharmacology with diverse  patient populations. He also has extensive training and experience in  psychotherapeutic modalities, including psychodynamic therapy,  cognitive-behavioral therapy, habit-reversal therapy, and cognitive  processing therapy. Following his training, Dr. Lelin provided inpatient  consultation and crisis intervention services in New York City.    

Treatment approach    

Dr. Lelin employs a compassionate, humanistic approach designed to align  closely with his patients' personal goals and values. His method integrates  advanced psychopharmacology with psychotherapeutic techniques such as  psychodynamic, cognitive-behavioral, habit-reversal, and cognitive processing  therapies. He aims to carefully balance diagnosis, avoiding both  overdiagnosis and underdiagnosis, to ensure precise and tailored care. Dr.  Lelin’s approach is particularly effective in addressing conditions like  anxiety, depression, bipolar disorder, OCD, trauma-related issues, and other  psychiatric conditions.    

What you can expect in a first visit    

During the initial visit, patients can expect a comprehensive, detailed  evaluation designed to thoroughly understand their individual experiences and  needs. Dr. Lelin prioritizes establishing a compassionate and comfortable  environment where patients can openly discuss their concerns and goals. This  initial assessment is followed by meticulous and thoughtful follow-ups,  providing clarity and direction in the treatment process.    

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 speciualize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.

Reaghan Hicks, MD

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Dr. Reaghan Hicks is a double board-certified psychiatrist in General and Addiction Psychiatry. She completed her undergraduate training at The College of Charleston followed by medical school at The University of South Carolina School of Medicine. Dr. Hicks completed Residency in General Psychiatry at The University of Florida College of Medicine in Jacksonville followed by Fellowship in Addiction Psychiatry at The Medical University of South Carolina. Dr. Hicks is an experienced clinician that specializes in treating individuals with a variety of diagnoses including adjustment disorders, depression, anxiety, PTSD, bipolar disorder, ADHD, and substance use disorders.‍She has an approachable style and values building rapport with her patients. She believes it is a privilege to be a part of someone's journey towards recovery and wellness. Dr. Hicks aims to meet each patient where they are while maintaining a nonjudgemental, patient-centered, and evidenced-based treatment approach. Dr. Hicks provides supportive psychotherapy, cognitive behavioral skills, and utilizes motivational interviewing to meet the needs of her patients. She believes effective utilization of therapy skills in conjunction with medication management can help patients meet their individualized treatment goals.

Lauren Mordukhaev, MD

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Dr. Mordukhaev believes individuals are more than a diagnosis and considers each patient’s biology, emotions, relationships, culture, and life circumstances to understand each human as a whole. She offers individualized, well-rounded care blending medication and psychotherapy. In a safe, supportive, and non-judgmental space, she partners with patients to foster greater insight into themselves, walking alongside them with compassion in their mental health journey.

Amber Blue, MD

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Dr. Amber Blue is a board-certified psychiatrist trained in Adult Psychiatry. She completed her residency at Yale University. She offers medication management in 30-minute follow-up visits informed by her psychotherapy experience. Occasionally, she may believe additional therapy would be beneficial, and therefore, she recommends that you add a therapist to your care team for the best results. She has received specialized training in psychoanalytic psychotherapy at Columbia University and NYU. Over the past three years, Dr. Blue has worked in college student health centers and private practice. She has a wide range of experience in treating various mental illnesses including depression, bipolar disorder, anxiety, and OCD. Her approach is to educate clients on their mental health, available pharmacologic and psychotherapeutic options, and to collaborate with them in formulating an evidence-based treatment plan.

Stephen Geisler, MD

Staff Psychiatrist

Dr. Stephen Geisler is a board-certified adult psychiatrist and has been practicing for over 37 years. His practice focuses on medication management, and typically offers this in conjunction with supportive therapy in 30-minute follow-up visits. If Dr. Geisler feels you would benefit from working with a therapist in conjunction with medication management, he welcomes collaboration with your therapist to make for the best outcome. Dr. Geisler is a graduate of the New York University School of Medicine. He completed a fellowship in Psychoanalytic Psychotherapy at the Zucker Hillside Hospital of Northwell Health after finishing his residency training there. He is currently an Assistant Clinical Professor at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. Over the years Dr. Geisler has received a number of awards including NAMI Exemplary Psychiatrist Award, The APA Irma Bland Certificate of Excellence in Teaching Residents, the Zucker Hillside Hospital Department of Psychiatry Recognition Award for Education, and twice received the Outstanding Teacher of the Year Award from the graduating residents' class. Dr. Geisler is a member of the American Psychiatric Association, the Nassau Suffolk District Branch of the APA and the American Society of Clinical Psychopharmacology. Through the years, Dr. Geisler has participated in many clinical research projects, has been the co-author of many papers, and has made many presentations. Dr. Geisler specializes in psychopharmacology, especially tailoring individualized treatment to serve the needs of patients with a variety of conditions. He has a lot of experience in treating patients with depression, bipolar disorder, anxiety disorders, ADHD, and OCD.

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Specialties
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Phobias
Tics/Tourette Syndrome
States
Pennsylvania
New Jersey
Languages
English
Takes insurance
Virtual visits
7 years experience