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Our Staff   

Core Team

Treatment at Malibu Vista is founded on the principle of women helping women. Our core team is made up of caring and experienced female professionals who work closely with each client on a day-to-day basis.


Call Malibu Vista 844-874-6483

Mary Pivarunis, LMFT, SEP, Trauma Therapist and Group Therapist

Mary is a Licensed Marriage and Family Therapist who specializes in trauma, PTSD and grief and loss. She is trained in Somatic Experiencing and Trauma First Aide, two body-oriented modalities that help clients increase their resiliency and ability to learn about and regulate their own nervous systems.

Mary received her Masters degree in Counseling Psychology and specialization in Somatic Psychology from John F. Kennedy University in Pleasant Hill, CA.

Prior to joining Malibu Vista, Mary worked at a psychiatric hospital in Berkeley, CA in both the inpatient and outpatient programs with diverse patient populations. She served as Program Director and Main Therapist for a variety of adult and adolescent programs. While working in the outpatient program, Mary conducted trauma consultations for both her patients and colleagues and initiated a department-wide training in Trauma First Aide to prevent burnout and PTSD.

Mary is very passionate about her work in the field of trauma and the body. Her enthusiasm, optimism and infectious sense of hope have been a comfort to hundreds of clients she has worked with over the years. Combining a real curiosity, compassionate exploration and a sense of humor, Mary helps clients identify and understand their issues and works with them to create a plan for healing. Mary believes that it is never too late to be curious about your self, to discover the resiliency of your body and the strength of your spirit to aid in the healing process.

Mary maintains a private practice in West LA where she works with adults and couples in short and long term psychotherapy.


With one phone call, you’ll have a team of people working to help you navigate through the treatment process and create the life you deserve. 844-874-6483


Olga Yahontova, MD, Psychiatrist

Malibu Vista is thrilled to announce the addition of Dr. Olga Yahontova. Dr. Olga Yahontova is a board-certified psychiatrist with extensive experience of treating trauma patients around the world.

She utilizes her expertise in the field of psychopharmacology as well as non-traditional approaches to help her patients regain health and freedom from suffering the aftermaths of trauma. She has taught thousands of participants at her workshops and lectures in the United States and around the world on the effects of trauma and on new approaches to healing it. Dr. Yahontova served as Associate Professor of Psychiatry at the USC. She has appeared on many domestic and international TV and Radio shows, bringing education to the public in different countries.

Robert Saltzman, MD, Independent Detox Specialist

Robert L. Saltzman, MD, graduated from New York Medical College with a medical degree in 1971. He obtained his licensure in California and has had a private practice specializing in internal medicine/nephrology since 1976. He is affiliated with St. John’s Hospital in Santa Monica, Brotman Medical Center in Culver City, and Daniel Freeman Marina Mercy in Marina Del Rey. He is a member of the American College of Physicians and the American Society of Nephrology.

Michele Cooke, RN, Detox Specialist

Michele has been a Registered Nurse for 15 years, specializing in emergency and psychiatric nursing. Before joining Malibu Vista’s medical team, she was the charge nurse in an emergency room for 11 years and worked for four years in a psychiatric hospital, specializing in adult and adolescent mental health and detox.

Michele is certified in the field of Health Ministry as a Parish Nurse. The philosophy of a Parish Nurse is treating the body as a whole with emphasis on the spirit. Michele leads groups at Malibu Vista addressing medication management, women’s health issues, and women’s empowerment. Michele is passionate about inspiring women to lead full, healthy lives by focusing on the present moment. She is married with four children.

Kerry Homotoff, PA-C, Physician's Assistant, Malibu

Kerry holds a bachelor’s degree in Psychology and a Masters of Physician Assistant Practice from USC. Prior to joining Malibu Vista, she worked in orthopedic surgery, urgent care and as a faculty member at a Physician Assistant program. She also spent two years as part of a team treating adolescents with eating disorders in a residential setting. A former gymnast and figure skater, Kerry enjoys dancing, Pilates, water skiing and taking her Husky to the dog park.

Tiffany Tanner, PA-C, Staff Physician Assistant

Tiffany holds a bachelor’s degree in Biology and a Masters of Medical Sciences in Physician Assistant Studies from Midwestern University. She has worked in the fields of pain management, family medicine and addiction medicine. She previously worked in an inpatient treatment center in San Diego where she treated patients with drug and alcohol dependencies, many of whom also suffered from co-occurring psychiatric disorders, chronic pain syndromes and sleep dysregulation.


Ancillary Providers

Margot Gersh, Acupuncturist

Margot Gersh holds a master’s degree in Acupuncture and Traditional Chinese Medicine from Yo San University in Los Angeles, California. She is licensed by the California State Board of Acupuncture, and is certified in both Acupuncture and Chinese Herbal Medicine. Margot worked as a pain specialist at the Simms/Mann Health and Wellness Center, where she worked with patients to manage and relieve both chronic and acute pain. Margot found that working with doctors, osteopaths, chiropractors and psychologists in an integrative setting was both highly educational and of tremendous value to patient care. She remains passionate about the integrative process, and finds that patient care is best served when practitioners come together and work as a team.

Margot also worked at the Yo San University Clinic, where she treated hundreds of patients with a wide range of medical issues. Margot finds great joy in helping patients work through both emotional and physical barriers, and utilizes many techniques within Chinese Medicine to regain health and balance in each patient.

Margot completed her undergraduate studies at the University of California, Santa Cruz in psychology and political science. She continued her own personal education by traveling and living abroad in Thailand, Indonesia and New Zealand. Before becoming an Acupuncturist Margot worked as a non-profit event coordinator. She worked with hundreds of non-profits in Los Angeles to raise millions of dollars, in order to maintain programming that continues to help thousands of people all over the world.

Margot has a private practice in Los Angeles, California. She is very passionate about internal medicine and pain management, and works diligently on every individual case to achieve lasting results.