Our Team
Dr. Jennifer Dore
Founder and Clinical Lead

Jennifer Dore, MD is a board certified psychiatrist specializing in psychodynamic psychotherapy and medication management for conditions such as depression, anxiety, bipolar disorder, ADHD and addiction. Dr. Dore earned her MD from New York Medical College in 2007, with the highest academic distinction, Alpha Omega Alpha and holds a B.A. from Amherst College where she majored in English Literature. Upon graduating, Dr. Dore trained for three years as a surgical resident at Weill Cornell/NY Presbyterian Hospital.
Dr. Dore’s training subsequently took her to Northern California where she joined the Stanford Department of Psychiatry as a resident physician. While at Stanford, Dr. Dore’s focus included the treatment of bipolar disorder, intensive individual psychotherapy, psychopharmacology, family and couples therapy, and medical decision making. Dr. Dore’s research in the area of bipolar disorder earned her recognition from the American Psychiatric Association during their 2013 Annual Meeting in San Francisco. Dr. Dore was also elected Chief Resident for her contributions as a leader and innovator.
In 2014, Dr. Jennifer Dore founded Helios Psychiatry with a mission to serve the local Bay Area community and innovate across a broad spectrum of traditional and pioneering treatments, including Ketamine-Assisted Psychotherapy. Dr. Dore has worked with hundreds of patients and published numerous research papers including a groundbreaking study into the effects of Ketamine-Assisted Psychotherapy published in the Journal of Psychoactive Drugs.
Training: Stanford Psychiatry, AMA; Cornell New York Presbyterian; New York Medical College, Amherst College.
Affiliations: CHADD (Children and Adults with Attention-Deficit/Hyperactivity Disorder), ADDA (Attention Deficit Disorder Association), APSARD (American Professional Society of ADHD and Related Disorders)
Christen Greenfield, MSN, NP-C

Christen Greenfield, MSN, NP-C is an AANP board certified Nurse Practitioner (NP) and licensed through the California Board of Nursing. Christen graduated from University of North Carolina-Chapel Hill in 2004 with her Bachelor of Science in Nursing and in 2009 with her Master of Science, obtaining certification as a Family Nurse Practitioner. As a primary care provider Christen found herself working with many patients to manage depression, anxiety and ADHD and found her calling in mental health. She returned to Duke University to complete a post graduate degree as a Psych Mental Health Nurse Practitioner (PMHNP). Christen believes in a tailored approach to care utilizing both medication and therapy.
Training: Duke University, North Carolina-Chapel Hill
Kathryn Croce RN

Kathryn Croce, RN, BSN is a registered nurse who graduated from East Carolina University and began her career as a neonatal intensive care nurse specializing in the care of the critically ill newborn. Being married to a Special Operations veteran she saw the effects of combat and post-traumatic stress firsthand. This led her to discover the healing power of psychedelics. She completed Naropa University’s inaugural Psychedelic-Assisted Therapies program and SoundMind’s Psychedelic Facilitator program focusing on Ketamine. Kathy is currently completing her certificate in integration coaching and is excited to work with clients in this capacity.
Training: Naropa University, East Carolina University
Abigail Ball, MSN, NP-C

Abigail (Abbi) Ball, MSN, PMHNP-BC is a board certified psychiatric/mental health nurse practitioner and is licensed through the California Board of Nursing. Abbi has worked with clients experiencing a full range of mental health issues in partial hospitalization, intensive outpatient, and outpatient settings. She values developing strong connections with clients and providing a nonjudgmental space for exploring their challenges and inner lives. Abbi uses a client-centered approach to medication management and therapy that is determined by each individual’s unique needs.
Abbi received her Master of Science in Nursing degree, specializing as a psychiatric/mental health nurse practitioner, from Duke University. She graduated summa cum laude from San Francisco State University with a BSN and also holds an MLIS from the University of Pittsburgh and a BA in film and media studies from the University of Florida. Abbi has an avid interest in the therapeutic applications of hypnosis and completed Dr. Michael Yapko’s 100-hour clinical hypnosis training.
Training: Duke University, San Francisco State University, University of Pittsburgh
Chloe Levin, MSN, NP-C

Chloe Levin, PMHNP-BC, FNP-BC is a Psychiatric Mental Health Nurse Practitioner and Family Nurse Practitioner. She graduated with a Bachelor of Science in Nursing from Boston College and spent her nursing career working in high-acuity Intensive Care Units. She graduated from the University of California, Davis School of Nursing with a Master’s degree as a Family Nurse Practitioner. During her time working as an FNP she discovered her passion for mental healthcare. She received her Post-Graduate Certificate from Duke University in Psychiatric Mental Health. Chloe takes a personalized approach to mental health care, recognizing that every individual is different. She has a particular interest in integrated and holistic psychiatry: combining functional medicine, lifestyle, traditional psychiatric medicines and ketamine assisted psychotherapy to help people achieve their mental and physical health goals.
Renee Bayard, Jungian Somatic Coach

As a Certified Jungian Somatic Coach specializing in trauma recovery, relationships and lifestyle optimization, Renée offers insightful guidance as you find your true self and create your aligned life. Unlike surface approaches, her methods help you release subconscious barriers and access the depth of your creative power. She structures a transformative container where you can develop wholeness, focusing on compassionate self awareness and integration of all parts of the self.
In addition to trauma-informed coaching, Renée offers a unique and effective form of relationship work that utilizes the Cognitive Type® method. This is a tested theory and analysis system stemming from research into how Jung’s Psychological Types are physically measurable in bodily expressions. Jung applied his knowledge of psychological types to marriage and relationship therapy, and Renée follows suit with her in depth coaching method, fostering real resolution and deepened connection.
Renée is an Associate Member of the International Association for Jungian Coaches and Consultants (IAJCC). This signifies her elite professional status as a highly qualified, trained world-class Jungian Coach.

Karina Hoog, CMT

Somatic Therapy and Bodywork
Our bodies communicate profoundly through movement and posture. Bodywork when performed by an expert, is a therapeutic dialogue with the body like no other. Our therapist-in-residence, Karina Hoog is a certified CMT specializing in myofascial alignment, Asian therapies, posture and breath-work. Karina’s techniques help drive systematic pain release and to jump start the body’s own healing energies. Her focus includes myofascial-release, a full array of circulatory system work, acupressure, stress release and regular massage.
Clients of Helios have uniques access to a range of programs focused on alignment, pain management, breath and stress-reduction. We hope you’ll experience the incredible knowledge and technique of one of the area’s most experienced practitioners.
Kristina Chancholo

Photobiomodulation Therapy / Red-Light Therapy
Kristina Chancholo is a natural-born healer with a passion for holistic healing. Her interest in equine chiropractic treatment began when she witnessed a horse being adjusted at a young age. In 2005, Kristina graduated from Cal State University of Fresno with a Bachelor’s in Equine Science and became a certified Equine Body Worker, helping sport horses recover from injuries. After a car accident in 2015, Kristina discovered Photobiomodulation (PBM) and used it to heal herself. She then began treating horses with PBM, reducing their recovery time by half. Kristina’s equine clients soon introduced her to treating humans, and her business grew from there. Kristina believes that photobiomodulation helps the body move from being stuck in a cycle of pain to self-healing at the cellular level. She aims to connect all the pieces of healing together through light therapy. PLEASE NOTE: If you are unable to find an available spot, please text or email Kristina Chancholo at 408-828-8721 / [email protected]

★★★★★
Helios psychiatry and Dr Jennifer Dore have changed my life dramatically. I can’t thank her enough. She’s a caring and thoughtful genuine psychiatrist.
-Kate A.
Helios Psychiatry
