David Unold, M.D.

David Unold, M.D.


Pathology - Clinical

Blood Banking/Transfusion Medicine


  • Assistant Clinical Professor


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

Pathology Building

4400 V St.
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

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

Philosophy of Care

Dr. Unold believes patients deserve excellent, timely, and compassionate care. 

Clinical Interests

Dr. Unold is interested in clinical pathology, blood banking, transfusion medicine, coagulation, and apheresis.  He also has an interest in medical missions and the provision of laboratory medicine in under-served areas.

Research/Academic Interests

Dr. Unold is interested in the integration of laboratory medicine and transfusion medicine within undergraduate medical education. 


Clinical Pathology


M.D., Medical College of Wisconsin, Milwaukee WI 2009

B.S., Marquette University, Milwaukee WI 2005


Pathology, Baystate Medical Center, Springfield MA 2009-2013


Blood Banking/Transfusion Medicine, Yale-New Haven Medical Center, New Haven CT 2013-2014

Board Certifications

American Board of Pathology, 2014

American Board of Pathology, Blood Banking/Transfusion Medicine, 2014

CA Medical Board, License, 2014

Professional Memberships

American Association of Blood Banks

American Society for Apheresis

American Society for Clinical Pathology

College of American Pathologists

Select Recent Publications

Unold D, Tormey CA. Clinical Applications of 4-Factor Prothrombin Complex Concentrate: A Practical Pathologist's Perspective. Arch Pathol Lab Med. 2015 Dec;139(12):1568-75.

Andrzejewski C, Cloutier D, Unold D, and Friedberg RC. Improving patient safety in transfusion medicine:  contemporary challenges and the roles for bedside and laboratory biovigilance in addressing them. International Journal of Clinical Transfusion Medicine. 2014;2:45-57.