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Safe and Rapid Weight Loss.
Safe And Rapid Weight Loss! Contact Us Now!
707-778-6019 or 415-925-3628
Safe And Rapid Weight Loss! Contact Us Now!
707-778-6019 or 415-925-3628

About IHM

clinical staff

David A Chappell, MD

Clinical Staff
David A Chappell, MD (Medical Director)
Dr. David Chappell is an endocrinologist and expert in obesity and obesity-related metabolic disorders.He received his M.D. from UT Southwestern Medical School in Dallas, Texas. He was an associate professor pf internal medicine at UCSF and University of lowa college of Medicine prior to re-locating to Northern California in 1998. Dr. Chappell is a widely recognized expert on weight loss and fasting and will supervise your medical care throughout all three phases of IHM. Working along with Dr. Chappell are a number of behaviorists, exercise physiologists, and dietitians who are highly-trained in their individual fields. Together, they provide a multidisciplinary team dedicated to helping you achieve and maintain your weight.

Ginny Erwin and Marc Klein, PhD

Marc Klein, PhD, MFT, Behavioral Director
Marc Klein is IHM’s behavioral psychologist since 1984. Marc oversees the behavioral modification lecture series during the weight-loss phase of our program. Marc also supervises the long-term follow-up programs, “the “Learn and Maintenance”, offered at IHM.
Ginny Erwin, MS, RDN, CHC, CPT
Ginny received her Bachelor’s degree in Nutrition Science and Dietetics from the University of Illinois at Chicago and her Master’s in Nutrition Communications and Marketing from Roosevelt University in Chicago. She practiced clinical dietetics at the University of Chicago Hospital Wellness and Obesity Research Center. She went on to corporate dietetics working with Goldman Sachs and developed her own nutrition and fitness business. Currently, Ginny is in charge of the nutrition division at the Institute for Health Management, Inc.
Affiliated Clinical Staff:
Cynthia Rathkey, FNP
Linda Stubler, FNP
Leandra Wallace, FNP
Medical and Office Staff:
Denise Eddings, Office Manager
Christine Kilne, Phlebotomist, MA
Teresa Beltran, Phlebotomist, MA
Samantha Beale, Medical Assistant

Business Hours

Mon - Fri:      9:00 AM - 5:00 PM
Sat - Sun:     Closed

Payment Options

Contact Information

Institute For Health Management
715 Southpoint Blvd, Ste C 
Petaluma, CA 94954
Email Address:
350 Bon Air Rd, Ste 1
Greenbrae, Ca 94904

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