About Us

Cook & Siu PC is an Internal Medicine and Women’s Health Group that has been providing patient care to the Southern Maryland area since 2005. Under the direction of Drs. Richard E. Cook and Betty B. Siu, this private practice has become a cornerstone for excellence in patient care and satisfaction. With smaller patient numbers and longer patient visits, we are able to focus on the details that keep our patients healthy. Both of our physicians were trained locally at nationally ranked top 100 hospitals, and have relationships with the local top academic institutions should the need arise to refer out for more serious medical problems. We are also affiliated with the South Maryland Blue Crabs, a member of the Atlantic League of Professional Baseball.

The majority of our patients come from word of mouth or positive feedback from online portals. We feel this is because of a reputation that has been built over time through excellent patient care, trust, and a caring bedside manner. Thus, with the newest in diagnostic technology, a friendly staff, and well-trained physicians who are constantly keeping up with the latest medical literature through medical school/hospital lectures and the latest medical journals, Cook & Siu PC has become one of the top practices in the Southern Maryland region. Cook & Siu are also the proud team physicians for the Southern Maryland Blue Crabs.


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.