Theresa Colberg, MD

Staff Psychiatrist
Languages
English
Conditions Treated
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 mood disorders, stressful life situations, the loss of a loved one, traumatic events, attachment traumas, or neurodevelopment 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 psychiatric symptoms 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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Alexandra Hamlyn, MD

Staff Psychiatrist

Dr. Alexandra Hamlyn is a board-certified adult psychiatrist and board-certified child and adolescent psychiatrist. She completed her medical education at Cooper Medical School of Rowan University and then completed her residency in adult psychiatry at Icahn School of Medicine at Mount Sinai Beth Israel. She then went on to complete her child and adolescent psychiatry fellowship at NYU Langone and Bellevue Hospital. During this time, she also taught a course titled Love Actually at NYU School of Arts and Science. During training, Dr. Hamlyn gained extensive clinical experience in psychiatric inpatient, outpatient, and emergency settings, allowing her the opportunity to treat patients of all ages and backgrounds in numerous busy hospitals in New York City. Dr. Hamlyn's primary focus is on medication management, though she also has experience working in four different outpatient clinics where she has gained expertise in multiple different therapy modalities. If appropriate, Dr. Hamlyn will refer you for psychotherapy and collaborate with your therapist to support your care. She appreciates the importance of fostering a meaningful therapeutic relationship, and her goal is to make every patient feel welcomed in a non-judgmental treatment environment. She also takes a holistic approach as she understands that good health creates a sense of overall well-being and improved mental health. She strongly emphasizes the importance of mindfulness, self-compassion, exercise, nutrition, and interpersonal relationships throughout treatment. She looks forward to meeting and working with you.

Alexander Wittenberg, DO

Staff Psychiatrist

Background and credentials    

Dr. Alexander Wittenberg is a board-certified adult psychiatrist. He received his undergraduate degree from Cornell University, majoring in Human Biology, Health, and Society. He earned his medical degree from the New York Institute of Technology College of Osteopathic Medicine, where he was a  member of the Psi Sigma Alpha Osteopathic Honor Society. As chief resident at  Mount Sinai Beth Israel, he gained extensive experience working in outpatient  settings and managing patient care at one of New York City's busiest clinics. Dr. Wittenberg has expertise in treating a wide range of mental health conditions, including depressive disorders, anxiety disorders, bipolar disorder, trauma and stressor-related disorders, and OCD.    

Treatment approach    

Dr. Wittenberg offers highly individualized and empathic treatment, primarily focusing on medication management. He frequently recommends integrating therapy into treatment plans and may suggest collaborating with a therapist. Dr. Wittenberg prioritizes a holistic approach, emphasizing overall well-being alongside symptom relief. He encourages the incorporation of mindfulness, self-compassion, exercise, nutrition, and attention to interpersonal relationships into his treatment strategy.    

What you can expect in a first visit    

During an initial visit with Dr. Wittenberg, patients can anticipate a collaborative, patient-centered, and non-judgmental environment designed to foster a meaningful therapeutic relationship. He will thoroughly discuss individual concerns and treatment goals, exploring potential therapeutic interventions, including medication management and holistic strategies to support mental health and overall wellness.

   

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.

Gusta Shurdut, MD

Staff Psychiatrist

Dr.Gusta Shurdut is a board-certified adult psychiatrist with 8 year experience. She completed her medical training at SUNY Downstate Medical center in Brooklyn, and psychiatric residency at Mount Sinai Beth Israel, NYC. After her residency, she worked as an assistant professor at Mount Sinai Psychiatric Ambulatory Services. Dr.Shurdut graduated magna cum laude from Columbia University with an undergraduate degree in biology. Prior to moving to New York, she obtained a degree in communications and public relations and worked as a journalist at her hometown in Latvia.

Dr.Shurdut believes in individual, empathetic, and collaborative treatment approach. Through her residency and work experiences, Dr.Shurdut has developed expertise to treat various mental health conditions including mood disorders, anxiety, OCD, ADHD, PTSD. While her primary focus is medication management, she also incorporates CBT, psychodynamic and supportive psychotherapy.

Dr.Shurdut’s goal is empowering patients to participate in their healthcare choices. As a psychiatrist, she feels honored to witness the complexity of the human experience, and curious to explore the factors that contribute to it.  On intake appointment, she will take time to understand your concern, provide assessment, discuss treatment options and collaboratively decide on most appropriate action. The follow up appointments are usually 30 minutes and include a psychotherapy modality.

Candice Hacker, MD

Staff Psychiatrist

Dr. Candice Hacker is a board-certified Psychiatrist at Talkiatry. She completed her Psychiatry residency and a fellowship in Consultation Liaison Psychiatry at Mount Sinai/St. Luke's Hospital. She is passionate about a holistic approach to patient care, trained in psychosomatic medicine, and she has a deep appreciation for the intricate connection between the mind and body. With over 20 years of experience, Dr. Hacker has facilitated excellent outcomes in the treatment of various mental health conditions, including anxiety disorders, mood disorders, and trauma-related conditions. Dr. Hacker believes in creating a safe, nurturing and non-judgmental environment where patients can openly explore their emotions and experiences. By integrating evidence-based psycho-pharmacological modalities with mindfulness and cognitive-behavioral techniques, she empowers her patients to challenge a negative mindset and reach their goals. Beyond her clinical practice, Dr. Hacker is deeply committed to community mental health advocacy and the destigmatization of mental illness.

Alexandra Dunn, MD

Staff Psychiatrist

Dr. Alexandra Dunn is a board-certified adult psychiatrist who completed her medical training at the University of California Irvine School of Medicine. She then moved to New York to complete her psychiatric residency training at Mount Sinai Beth Israel. During training, Dr. Dunn gained extensive clinical experience in psychiatric inpatient, outpatient, and emergency settings, allowing her the opportunity to treat patients of all ages and backgrounds. In addition, she co-led a mindfulness group at the outpatient clinic, worked with students at Baruch College, and rotated with the Assertive Community Treatment team at MSBI. Ultimately, Dr. Dunn chose outpatient care, focusing on treating patients with mood and anxiety disorders. While her practice primarily emphasizes medication management, she also incorporates supportive and cognitive behavioral therapy techniques in her sessions with patients. If appropriate, Dr. Dunn will refer you for psychotherapy and collaborate with your therapist to support your care. She looks forward to meeting and working with you to help you feel better.

Richard Rise, MD

Staff Psychiatrist

Dr. Richard Rise has created a successful career as a psychiatrist over the past 30 years. He has participated in a variety of treatment settings and has developed a wealth of experience at both prescribing medications, providing therapy, counseling, and even coaching. He takes an individual approach to treating others, recognizing individuals as unique and worthy of love, respect, and acceptance. He is compassionate, non-judgmental, and truly enjoys helping others. He tends to gravitate towards a combination of medication management (if indicated) and psychotherapy where he treats all facets of the individual. Dr. Rise believes that we are all unique and should be treated as such. He spent most of his career in private practice until deciding to retire in 2014. After this he spent the next 3 1/2 years, reading, studying, traveling, and spending time with his loved ones. In 2018 he was offered a position as a consultant overseeing Ketamine infusion therapy for treating treatment-resistant depression. When the pandemic hit in March of 2020, Dr. Rise was asked to assist a local psychiatric hospital deal with the unique and often deadly consequences of the virus. This proved to be a wonderful opportunity for personal growth and to improve the quality of life of many others. After working at the hospital for the 2 years, Dr. Rise joined Talkiatry to continue providing high-quality psychiatric care to others in a very loving, supportive, creative, and collaborative environment.

Shilpika Varma, MD

Staff Psychiatrist

Dr. Varma grew up in an immigrant family surrounded by aspiring doctors, and her passion for understanding the human mind and behavior blossomed early. This curiosity led her to pursue extensive medical training abroad, beginning at Kasturba Medical College in Southern India, followed by clerkships at the University of the West Indies in Trinidad and Tobago. She completed her Adult psychiatry residency at the University of Florida in Gainesville and specialized further with a child/adolescent fellowship at Brookdale University Hospital in Brooklyn, NY.

Dr. Varma believes in a holistic, integrative approach to mental health. Her philosophy centers on identifying the root causes of ailments rather than merely addressing symptoms. She views mental health care as a partnership, where the mind, body, and spirit work together to achieve wellness. Dr. Varma is committed to fostering a safe, confidential therapeutic alliance to help you explore your potential for healing.

Dr. Varma embraces integrative psychiatry, which combines the best of conventional Western medicine with complementary approaches. This involves a comprehensive biopsychosocial assessment tailored to each individual, incorporating psychopharmacology alongside lifestyle adjustments in diet, movement, and breathwork. She collaborates with therapists and other professionals to create a well-rounded treatment plan that honors your unique journey.

TreSina Steger, LPC

Therapist

Dr. TreSina E. Steger (Dr. Tre) is a licensed professional counselor (LPC) who has practiced as a mental health therapist for several years. She received a Bachelor of Science degree from Mount Olive College, in NC, a Master of Science in Psychology and Clinical Mental Health Counseling from Capella University, in MN, and a Doctorate in Education, in Higher Educational Leadership from Liberty University in VA. She has worked in business, outpatient mental health, non-profits, in private practice, and with the military. She is a National Certified Counselor (NCC), a Board Certified Tele-Mental Health Provider (BC-TMH), Certified Dialectical Behavioral Therapist (CDBT), and Certified Trauma Focused Cognitive Behavioral Therapy (C-TFCBT). Dr. Tre uses person-centered, solution-focused, DBT, CPT, CBT, motivational interviewing, mindfulness, psychodynamic, and other approaches to assist clients. She strides in aiding clients work on attachment issues, relationship problems, ADHD, self-esteem, self-worth, gender identity, boundary issues, trauma, depression, and anxiety. Dr. Tre has worked with clients from a variety of backgrounds, populations, and identities and takes pride in being a LGBTQIA+ affirming, a gender-affirming, BIOPC therapist who has worked with clients who have experienced various types of traumas. Clients will find she has a conversational tone, direct, non-judgmental approach when addressing their therapeutic goals and provides a safe space for them to do their work.

Justin Uzl, MD

Staff Psychiatrist

Dr. Justin Uzl is double board-certified in adult and consultation liaison psychiatry. His fellowship training helped him gain greater insight into the interface between medicine and mental healthcare. He has been practicing for seven years and has worked closely with individuals with co-occurring chronic medical issues, specifically organ transplantation. Dr. Uzl takes a holistic approach to mental healthcare combining medication management, psychotherapy, and lifestyle modifications to help his patients achieve a quality of life that allows them to pursue their goals. He sees the position of the psychiatrist as helping to educate and guide patients, allowing them to take an active role in their own recovery. Dr. Uzl believes diversity is a strength and embraces providing high quality services that affirm the dignity, worth and value of all individuals including the LGBTQ+ community. Dr. Uzl takes an evidence-based approach in his treatment of individuals suffering with depression, anxiety, trauma, difficulty focusing and concentrating, sleep issues, and interpersonal problems. He utilizes insight-oriented care, believing that gaining understanding of a person's feelings, thoughts, and actions will provide them the knowledge needed to make the positive change they desire. Therapy may be a key part of a person's treatment, and if greater frequency is needed outside of sessions with Dr. Uzl, he will refer and collaborate with a psychotherapist to help maximize a patient's success.

Dorcas Adepoju, MD

Staff Psychiatrist

Dorcas Adepoju is from the Washington, D.C. metropolitan area. She earned her Doctor of Medicine (MD) degree in 2006 from Loma Linda University School of Medicine in California. She completed her psychiatry residency at the University of Kansas School of Medicine in Wichita, Kansas in 2010 and became board certified in Psychiatry by the American Board of Psychiatry and Neurology in 2012.‍She has a decade of experience working in community mental health centers, including the Center for Health Care Services (CHCS), where she treated people experiencing homelessness and mental illness from 2012 to 2019, and later served on the Assertive Community Treatment (ACT) team from 2019 to 2021, working with a multidisciplinary team providing wraparound services to patients with severe and persistent mental illness, in order to reduce their number of hospitalizations and to improve their quality of life. After working with the ACT Team, Dr. Adepoju worked for a little over 2 years at residential, partial day hospital, and outpatient chemical dependence treatment facilities, offering psychiatric evaluation and treatment to patients with psychiatric and/or substance use disorders. Dr. Dorcas Adepoju specializes in treating patients with severe and persistent mental illness(es) with or without substance use disorder(s). In addition, she has experience treating pregnant women with mental health challenges and continues to stay updated in this area of interest. Dr. Adepoju has a collaborative, patient-centered style of practice, focusing on whole person care and integrating psychotherapeutic techniques with medication management.

Namrata Shah, MD

Staff Psychiatrist

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, where she trained 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.

David Guggenheim, PsyD

National Director of Psychotherapy

Dr. David Guggenheim is an experienced clinical psychologist and health care administrator. He has worked with patients at different stages of life, including children, adolescents, and adults, and he has treated patients living with a wide range of mental health conditions, including anxiety, depression, post-traumatic stress disorder (PTSD), substance use, and attention-deficit hyperactivity disorder. Dr. Guggenheim has specific training in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and foundational training in dialectical behavioral therapy. Prior to joining Talkiatry, Dr. Guggenheim served as the Chief Behavioral Health Officer at Callen-Lorde Community Health Center in New York City, specializing in LGBTQ+ health care. In that role, he oversaw teams of providers including psychiatrists, psychologists, and social workers, who collectively provided care to thousands of patients in the New York metropolitan area. While at Callen-Lorde, he also served as co-chair for the behavioral health subcommittee of the Community Health Center Association of New York State; worked as an Adjunct Professor at Post University; and performed volunteer clinical work at the Weill Cornell Center for Human Rights. Before joining Callen-Lorde, Dr. Guggenheim worked as Associate Chief Behavioral Health Officer at Community Health Center, Inc., a federally qualified health center in Connecticut. A recognized expert, Dr. Guggenheim has delivered lectures to audiences ranging from medical schools to corporate executives, and he has been quoted in national media including The Advocate, Yahoo Finance, and Teen Vogue. Dr. Guggenheim has also been honored with an Early Career Achievement Award from the American Psychological Association in 2016. Dr. Guggenheim received his Bachelor of Arts from the University of Connecticut in 2002 and his Doctor of Psychology in Clinical Psychology from the American School of Professional Psychology at Argosy University/Washington, DC in 2009.

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