About Us

Commonwealth Family Practice is a full service primary care practice capable of in-house labs, procedures, urgent care, routine primary care including physicals, and osteopathic spinal manipulation. We currently have 2 family practice certified physicians with plans to expand as needed.

Dr. Marianne Land Siegrist is a graduate of the Philadelphia College of Osteopathic Medicine with residency training in family practice at the Medical College of Virginia. She also has a Master’s degree in Health Service Administration. Dr. Marianne Siegrist is board certified in family practice by the American Academy of Family Practice.

Dr. Stephen Kurt Siegrist is a graduate of the Philadelphia College of Osteopathic Medicine. Dr. Stephen Siegrist is board certified in family practice by the American College of Osteopathic Family Physicians. He has also served as a physician in the military on both active and reserve duty. Dr Siegrist has had previous training and experience as a Medical Review Officer. He retired from the reserves as a Colonel. In addition, he earned a Master’s degree in Biology.

Both Dr. Marianne Siegrist and Dr. Stephen Siegrist are active members of the American Osteopathic Association. They are also members of the Virginia Osteopathic Medical Association and Dr. Marianne Siegrist has served as the Secretary/Treasurer of the organization. Dr. Marianne Siegrist is also an active member of the Virginia Association of Family Practitioners.

Commonwealth Family Practice philosophy is to practice holistic medicine and integrate all of our skills to improve patient health and well-being. We emphasize preventive care and the physician/patient relationship in an effort to achieve better health and quality of life.


About Privia Medical Group

Our practice is a proud member of Privia Medical Group - a physician-led, multi-speciality, national medical group. The nation’s top primary care physicians and specialists came together to form Privia Medical Group and share in the mission of providing better, more coordinated care to patients.

Our group focuses on taking accountability for the health and wellness of the patients we serve. We use some of the latest advances in medicine to help our patients remain healthy and better manage disease by offering our patients access to innovative health management technologies, proactive team-based care, and an evidenced-based, patient-centered approach.

Here’s what sets Privia Medical Group apart from traditional practices:

Top Doctors

  • Nationally recognized top physicians and healthcare professionals
  • Physician-led, high-performance medical group
  • Unhurried, comprehensive visits, with time to develop the right care plan
  • Personalized care that exceeds your expectations

Proactive Care

  • Collaborative, team-based medical group
  • Staffed with Health Coaches, Nurse Educators, Pharmacists, and Care Managers
  • Same-day/next-day appointments available
  • Care reminders and alerts
  • Check ins with clinical experts between your office visits

Convenient Technology

  • Book appointments and renew prescriptions online
  • Send and receive secure messages with your care team
  • Secure access to electronic medical records
  • Pay your invoices by credit card, securely and conveniently

State-of-the Art Security and Privacy

We go to extreme lengths to ensure our patients’ information remains confidential and secure.

Not only is our team trained in modern privacy standards (such as HIPAA and PCI compliance), but we also keep your information secure with Secure Socket Layer (SSL) data encryption, firewalls, secure servers (including 24/7 surveillance and biometric access), and many more measures to ensure your information won’t fall into the wrong hands.

To learn more about Privia Medical Group and find other Privia doctors, please visit our website