Let us help you Look the way you want to look,

and Feel the way you want to feel!


Colleen Phillips, Ph.D. has been in private practice as a nutritionist in the Los Angeles San Fernando Valley since 1984. Dr. Phillips is the Founder and Owner of Diet Doctors Medical Mgmt., Inc..


For more than 35 years, Dr. Phillips has been dedicating her work and her life to helping people achieve their nutritional and weight loss goals.


Colleen will, upon request, design each patient's diet plan, which allows you to include some of your favorite foods in your personalized plan. Medical supervision is provided at all times by Board Certified physicians who own the medical practice.

Dr. Colleen Phillips, Ph.D.

Diet Nutritionist

Contact me

Colleen is also a lecturer and author, and was voted

BEST OF LA: Best Weight Loss Center

2004, 2008, 2009, 2010, 2011, 2012,

2013, 2014, 2015, 2016, 2017, 2018,

2019, 2020

BEST OF LA: Best Nutritionist

2007, 2008, 2009, 2010, 2011, 2012,

2013, 2014, 2015, 2016, 2017, 2018,

2019, 2020

Colleen Phillips' Business Portrait was published in the

Daily News: 2009 Who's Who in Business


In 2013, Colleen Phillips, Ph.D. and Diet Doctors Medical Center

were honored with the City of Los Angeles, Certificate of Recognition

presented by Bob Blumenfield Councilmember 3rd District


In 2018, Diet Doctors Medical Center won the

2018 Spectrum Award for Excellence in Customer Service

To learn more about our

Diet Program

please call us at 818-346-9600

e-mail info@dietdoctors.net

or visit DietDoctors.com for details.

To learn more about our

Laser Procedures

please call us at 818-346-9600

e-mail info@laserdoctors.net

or visit LaserDoctors.net for details.






Walk-ins welcome

Se habla espanol

At our Canoga Park location since 1984


Meet The Team

  • Diet Doctors Medical - Facebook
  • Diet Doctors Medical - Instagram
  • Diet Doctors Medical - LinkedIn
  • Diet Doctors Medical - Yelp
  • Diet Doctors Medical - Google Places

Physicians and/or Certified Nurse Practitioners are always available and on site.

Medical Supervision is provided by Board Certified Physicians!

All procedures are performed by Board Certified Physicians!

Diet Doctors Medical Center and Laser Doctors Medical Associates

 are physician owned and licensed by the Medical Board of California.


 Nutritional counseling and medical management provided by

Colleen Phillips dba Valley Warner Medical Mgmt., Inc.


Dr. Colleen Phillips, Ph.D.   DrPhillips@dietdoctors.net


Diet Doctors Medical Mgmt., Inc.   DietDoctors.com   818-346-9600


Laser Doctors Medical Mgmt.   LaserDoctors.net   818-346-9600


21103 Vanowen St, Canoga Park, CA 91303  (between De Soto & Canoga)


Hours: Monday 9am - 7pm  /  Tuesday-Friday 9am - 6pm  /  Saturday 9am - 1pm


We accept all credit cards

© 1984-2021 Colleen Phillips, Ph.D.. All Rights Reserved.