Alison Breen, M.D.

Alison Sumiko Breen, M.D.


Obstetrics and Gynecology


  • Assistant Clinical Professor
To see if Alison Sumiko Breen is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

UC Davis Medical Group - Elk Grove

8110 Laguna Blvd.
Elk Grove, CA 95758
Driving Directions

Primary Phone:

Additional Phone Numbers

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

Philosophy of Care

Dr. Breen believes the best part of being a physician is building relationships with her patients.  Every detail of a patient’s care, whether it's preparing for a new baby, preparing for surgery, diagnosing a health issue, or routine well-woman care is important. Helping to bring new babies into the world and seeing a patient through surgery is an essential part of the career she loves and is committed to providing the very best care.  She is pleased to work at UC Davis, where she attended medical school and residency training, working beside the doctors who inspired her to this career in the first place. 


Obstetrics and Gynecology
UC Davis Medical Group, Elk Grove

Center/Program Affiliation

UC Davis Medical Group
Women's Center for Health


M.D., UC Davis School of Medicine, Sacramento CA 2009

B.A., Wellesley College, Wellesley MA 2003


OB/Gyn, UC Davis Medical Center, Sacramento CA 2009-2013

Board Certifications

American Cardiac Life Support,

Neonatal Resuscitation Program,

Professional Memberships

American College of Obstetricians and Gynecology

American Medical Association

California Medical Association

Select Recent Publications

Kargozaran H, Yuan SY, Breslin JW, Watson KD, Gaudreault N, Breen A, Wu MH. A role for endothelial-derived matrix metalloproteinase-2 in breast cancer cell transmigration across the endothelial-basement membrane barrier. Clin Exp Metastasis. 2007;24(7):495-502.