our team of professionals

Gail Altschuler, MD

Medical Weight Loss Physician

Gail Altschuler, MD has provided her unique style of personalized, supportive weight loss and maintenance for over 20 years.  While practicing Family Medicine, she concluded that achieving a balanced weight was the single most important thing a person can do to restore and maintain good health. She became a board-certified specialist in Obesity Medicine, and using the skills learned, she lost 50 pounds and has kept it off for the past 20 years.

A physician’s eye allows for a deeper look into the conditions contributing to weight loss resistance, conditions that could make a difference in successfully reaching weight loss goals. Dr. Gail’s unique combination of knowledge and experience play an important role in the overall effectiveness of Marin Weight Loss & Wellness programs.

Cassale Sherriff

Nutritionist, Exercise Physiologist, Mindfulness Meditation Teacher

Originally from Australia, Cassale holds a degree in Exercise Physiology and is a certified Nutrition Consultant and Mindfulness Meditation Teacher. Passionate about wellness and equipped with the knowledge of how food can heal and nurture, she experienced firsthand the power of food as medicine by restoring her oldest son’s failing health through targeted therapeutic nutrition.

She has a vast array of experience in weight loss and wellness, having worked in private practice and a Bariatric Clinic and now as the lead nutritionist for the past 8 years at Marin Weight Loss and Wellness. Cassale has witnessed dramatic results, having successfully coached and supported thousands of patients through her weight loss programs utilizing whole food nutrition plans and lifestyle modification techniques.

Cassale originates from a tennis family in Australia, her grandfather playing in the Davis Cup team, her father and two aunts winning multiple Grand Slam Titles. Cassale played the junior circuit before commencing her studies in Exercise Physiology. A life long learner, Cassale has numerous certifications in different fields of health, her focus at the present moment is emotional and spiritual well being.

Cassale has two boys 19 & 22, who are studying in the healing arts - Naturopathy and Osteopathy, living together in Australia on the beach, enjoying all that life has to offer.

Current Hours

MONDAY - 8AM - 4PM (ADMIN ONLY)
TUESDAY - 9 AM - 6PM
WEDNESDAY - 9 AM - 5PM
THURSDAY - 9 AM - 5PM
FRIDAY - 9 AM - 5:00PM
SATURDAY - CLOSED
SUNDAY - CLOSED