William Bommer, M.D.

William J. Bommer, M.D.



Cardiovascular Medicine

Internal Medicine


Internal Medicine


  • Professor of Clinical Internal Medicine
  • Director of Noninvasive Services
  • Director, Cardiology Fellowship Training Program
  • Director, California Elective PCI Program, California Department of Public Health


To see if William J. Bommer 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 0200
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Physician Referrals: 916-734-5678

Clinical Interests

William J. Bommer's clinical interests focus on sonography (thoracic esophageal and gastric imaging) and intraluminal echocardiography.  Dr. Bommer is evaluating risk factors for preclinical disease, morbidity and mortality in patients 65 or older.  

Projects involve computer simulation of blood-flow models in finite difference analysis, restenosis prevention with time-release oligonucleotide site-specific delivery, bronchial airway circulation, and new contract agents.  He is the director of the California Off-Site PCI Program.


Cardiovascular Medicine

Center/Program Affiliation

Cardiovascular Services


M.D., State University of New York School of Medicine, Buffalo NY 1972

B.A., Cornell University, Ithaca NY 1968

Internship: Internal Medicine, State University of New York, Buffalo NY 1972-1973


Internal Medicine, State University of New York, Buffalo NY 1973-1975


Cardiovascular Medicine, Martinez VA Hospital , Martinez CA 1975-1977

Board Certifications

American Board of Internal Medicine, 1975

American Board of Internal Medicine, Cardiovascular Disease, 1977

Professional Memberships

American College of Cardiology

American College of Physicians

Sacramento Sierra Yolo Medical Society

Honors and Awards

Best Doctors in Sacramento 2011, 2012, 2013, 2014, 2015

Best Doctors in America 2009, 2010, 2011, 2012, 2013, 2014, 2015

Select Recent Publications

Bommer WJ. California cardiovascular legislation 2014. Rev Cardiovasc Med. 2014;15(3):266-70.

Bommer WJ. Coronary revascularization: then, now, future trends. Rev Cardiovasc Med. 2014;15(2):176-7.

Smith TW, Bommer WJ. Multimodality imaging in transcatheter aortic valve replacement. Rev Cardiovasc Med. 2014;15(2):75-85.

Bommer WJ. Choosing wisely. Rev Cardiovasc Med. 2013;14(2-4):e134-5.

Bommer WJ. Health care reform: what's wrong with 17.6% GDP? Rev Cardiovasc Med. 2013;14(1):66-8.

Bommer WJ. California ACC goals. Rev Cardiovasc Med. 2012;13(2-3):e121-3.

Bommer WJ. Current and future alternatives to warfarin for the prevention of stroke in atrial fibrillation. Crit Pathw Cardiol. 2012 Jun;11(2):45-54.

Aryana M, Li Z, Bommer WJ. Obesity and physical fitness in California school children. Am Heart J. 2012 Feb;163(2):302-12.

Bommer WJ. Can docs bridge US over the cliff? Rev Cardiovasc Med. 2012;13(4):e196-7.

Bommer WJ. Use of angiotensin-converting enzyme inhibitor/angiotensin receptor blocker therapy to reduce cardiovascular events in high-risk patients: part 2. Prev Cardiol. 2008 Fall;11(4):215-22.