“I am all about preventive care. I want my patients to be partners in their healthcare. We are all going to age. It is about how we age! If you as the patient are willing to do your job I will do my best to get you to your 95th birthday! Staying well is not just luck or genetics. It is about hard work taking care of yourself every day.”

Board Certification

  • Family Medicine

Areas of Expertise

  • Family Practice
  • General Internal Medicine
  • Osteopathic Manual Medicine



Medical College of Virginia Hospitals
Family Medicine
Richmond, VA


Philadelphia College of Osteopathic Medicine
Internal Medicine
Philadelphia, PA

Medical School

Philadelphia College of Osteopathic Medicine
Doctor of Osteopathic Medicine
Philadelphia, PA

Undergraduate School

Chestnut Hill College
Bachelor of Science in Biochemistry
Philadelphia, PA

Professional Associations

American Osteopathic Association

Virginia Osteopathic Medical Association
Secretary, Treasurer, Member

Virginia Academy of Family Practice

Personal Interests

Dr. Marianne is married to Dr. Stephen K. Siegrist. They have 2 beautiful children. Dr. Marianne enjoys athletics, gardening, and traveling.


Dr. Marianne Land Siegrist is a graduate of the Philadelphia College of Osteopathic Medicine. She graduated in 1991. She completed residency training at the Medical College of Virginia. Dr. Marianne also has a Master’s degree in Health Services Administration. She is board certified through the American Academy of Family Practice.

Dr. Siegrist has been at Commonwealth Family Practice for 15 years. Prior to that, she worked at Kenner Army Hospital in Fort Lee Virginia. Dr. Marianne is a former Secretary and Treasurer of the Virginia Osteopathic Medical Organization. She is active in the Virginia Association of Family Practitioners.