Ru Cai, M.D.



Internal Medicine


Internal Medicine


  • Associate Physician Diplomate


To see if Ru Cai is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

UC Davis Medical Center

2315 Stockton Blvd.
Sacramento, CA 95817
Driving Directions

Primary Phone:
800-2-UCDAVIS (800-282-3284)

Additional Phone Numbers

Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Clinical Interests

As a hospitalist, the main goals are: provide the highest quality of care to hospitalized patients and to serve as primary educators to medical students and residents in the care of hospitalized patients.


Hospital Medicine


M.D., Xinjiang Medical University, Urumuqi, Xinjiang, 1989

Internship: McLaren Medical Center, Flint, Michigan, 2000


McLaren Medical Center, Flint, Michigan, 2001-2002

Board Certifications

American Board of Internal Medicine, 2003

Professional Memberships

American College of Physicians

American Medical Association

Select Recent Publications

2004 Vega-Lopez, S., N. Kaul, S. Devaraj, R. Y. Cai, B. German, I. Jialal. Supplementation with omega 3 polyunsaturated fatty acids and all-rac alpha-tocopherol alone and in combination failed to exert an anti-inflammatory effect in human volunteers. Metabolism, 53(2):236-40.

1998 Oyer, C. E., R. Cai, J. J. Coughlin, and D. B. Singer. First trimester pregnancy loss associated with varicella zoster virus infection: histological definition of a case. Human Pathology 28:94-95.

1997 Zheng, W., C. J. Sung, P. Cao, Z.-F. Zhang, R. Cai, A Godwin, E. E. Kramer, and S. C. Lauchlan. Early occurrence and prognostic significance of p53 alteration in primary carcinoma of the fallopian tube. Gynecologic Oncology 64:38-48.