William Lewis, M.D.

William R. Lewis, M.D.




Internal Medicine


  • Professor, Division of Clinical Internal Medicine


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

Lawrence J. Ellison Ambulatory Care Center

4860 Y St., Suite 2820
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Clinic Phone: 916-734-3762
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Clinical Interests

William R. Lewis' study of immediate exercise treadmill testing of chest pain patients in the emergency room has shown the safety and efficacy of this care pathway. He continues to be interested in appropriateness and accuracy of stress testing in selected populations.

Research/Academic Interests

Dr. Lewis is interested in immediate exercise testing for chest pain patients and the utility of noninvasive testing in subgroups (i.e. left bundle branch block).


Cardiovascular Medicine


M.D., Duke University School of Medicine, Durham NC 1985

B.S., UC Davis, Davis CA 1978

Internship: General Surgery, Harbor UCLA, Torrance CA 1985-1986

Internship: Internal Medicine, UC Davis Medical Center, Sacramento CA 1986-1987


Internal Medicine, UC Davis Medical Center, Sacramento CA 1987-1989


Cardiovascular Medicine, UC Davis Medical Center, Sacramento CA 1989-1993

Board Certifications

American Board of Internal Medicine, 1989

American Board of Internal Medicine, Cardiovascular Medicine, 2021

Professional Memberships

American College of Cardiology

California Chapter of the American College of Cardiology

Sierra Sacramento Valley Medical Association

Honors and Awards

California Chapter of the American College of George L Smith Cardiology Advocate of the Year, 2010

California Chapter of the American College of Cardiology CV Therapeutics Cardiovascular Consultant of the Year, 2006

Outstanding Clinical Faculty Award, 2002

Robert M. Walter, M.D., Outstanding Faculty Teacher Award, 1998

Select Recent Publications

Rakhee M, Venugopal S, Takahashi N, Guthikonda M, Mandal L, Alismail Y, Abbas S, Mahdi A, Lewis WR, Wilson M, Amsterdam EA. Progression of aortic stenosis and long-term follow-up in women. J Clinical Cardiol Cardiovascular Interventions. 2021;4(8) doi:10.31579/2641-0419/147.

Beri N, Farid A, Galkin M, Lewis W, Amsterdam E. Diagnostic Dilemma: Carcinoid Syndrome. Am J Med. 2018 Oct;131(10):e405-e407. doi:10.1016/j.amjmed.2018.05.026. Epub 2018 Jun 12. PMID:29906424.

Figueroa JA, Mansoor JK, Allen RP, Davis CE, Walby WF, Aksenov AA, Zhao W, Lewis WR, Schelegle ES. Exhaled volatile organic compounds in individuals with a history of high altitude pulmonary edema and varying hypoxia-induced responses. J Breath Res. 2015 Apr 20;9(2):026004. doi:10.1088/1752-7155/9/2/026004. PMID:25891856.

Bukkapatnam RN, Gabler NB, Lewis WR. Statins for primary prevention of cardiovascular mortality in women: a systematic review and meta-analysis. Prev Cardiol. 2010 Spring;13(2):84-90. doi:10.1111/j.1751-7141.2009.00059.x. PMID:20377811.

Lewis WR. The politics of health care. Rev Cardiovasc Med. 2010 Winter;11(1):41-2.

Sauvé MJ, Lewis WR, Blankenbiller M, Rickabaugh B, Pressler SJ. Cognitive impairments in chronic heart failure: a case controlled study. J Card Fail. 2009 Feb;15(1):1-10. doi:10.1016/j.cardfail.2008.08.007. Epub 2008 Oct 4. PMID:19181287.

Karnik RS, Lewis W, Miles P, Baker L. The effect of beta-blockade on heart rate recovery following exercise stress echocardiography. Prev Cardiol. 2008 Winter;11(1):26-8. doi:10.1111/j.1520-037x.2007.07310.x. PMID:18174788.

Lewis WR, Ganim R, Sabapathy R. Utility of stress echocardiography in identifying significant coronary artery disease in patients with left bundle-branch block. Crit Pathw Cardiol. 2007 Sep;6(3):127-30. doi:10.1097/HPC.0b013e31812da7dc. PMID:17804973.

Lewis WR, Amsterdam EA. Predictive instruments, critical care pathways, algorithms, and protocols in the rapid evaluation of chest pain. Crit Pathw Cardiol. 2005 Mar;4(1):30-6. doi:10.1097/01.hpc.0000153395.33568.01. PMID:18340182.

Lewis WR. Echocardiography in the evaluation of patients in chest pain units. Cardiol Clin. 2005 Nov;23(4):531-9, vii. doi:10.1016/j.ccl.2005.08.009. PMID:16278122.