Joshua J. Fenton, M.D., M.P.H. for UC Davis Health

Joshua J. Fenton, M.D., M.P.H.

Vice Chair of Research, Department of Family and Community Medicine

Professor, Department of Family and Community Medicine

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



Family and Community Medicine

Locations and Contact

Lawrence J. Ellison Ambulatory Care Center

Lawrence J. Ellison Ambulatory Care Center
4860 Y St.
Sacramento, CA 95817

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Additional Numbers

Clinic Phone


Physician Referrals

800-4-UCDAVIS (800-482-3284)

Philosophy of Care

Dr. Fenton strives to help his patients get the best possible health care - care that is personal, conscientious and grounded in the latest in medical knowledge.

Clinical Interests

Dr. Fenton is a family physician who provides primary care for adults and children across the lifespan. He has clinical interests and expertise in general family medicine, adult internal medicine, geriatrics, preventive medicine, and mental health and substance use. He also speaks Spanish.

Research/Academic Interests

Dr. Fenton's research focuses on screening, prevention, patient-doctor communication, and increasing the value and safety of primary healthcare.


Family and Community Medicine

Center/Program Affiliation

Center for Healthcare Policy and Research

Undergraduate School

B.A., UC Berkeley, Berkeley CA 1990

Medical School

M.D., UC San Francisco School of Medicine, San Francisco CA 1996

Other School

M.P.H., Health Services, University of Washington, Seattle WA 2004


Family Medicine, San Francisco General Hospital/UC San Francisco, San Francisco CA 1996-1997


Family Medicine, San Francisco General Hospital/UC San Francisco, San Francisco CA 1997-1999


Robert Wood Johnson Clinical Scholars Program, University of Washington, Seattle WA 2002-2004

Joan Oettinger Memorial Award, UC Davis School of Medicine, 2013

Distinguished Research Paper, Society of Teachers of Family Medicine, Annual Spring Conference, 2006

Julius R. Krevans Award for Clinical Excellence, San Francisco General Hospital, 1997

Robert H. Crede Award, UC San Francisco School of Medicine, 1996

Agnoli A, Xing G, Tancredi DJ, Magnan E, Jerant A, Fenton JJ. Association of Dose Tapering With Overdose or Mental Health Crisis Among Patients Prescribed Long-term Opioids. JAMA. 2021 Aug 3;326(5):411-419. doi:10.1001/jama.2021.11013. Erratum in: JAMA. 2022 Feb 15;327(7):688. Erratum in: JAMA. 2022 Feb 15;327(7):687. PMID:34342618.

Fenton JJ, Agnoli AL, Xing G, Hang L, Altan AE, Tancredi DJ, Jerant A, Magnan E. Trends and Rapidity of Dose Tapering Among Patients Prescribed Long-term Opioid Therapy, 2008-2017. JAMA Netw Open. 2019 Nov 1;2(11):e1916271. doi:10.1001/jamanetworkopen.2019.16271. Erratum in: JAMA Netw Open. 2020 Aug 3;3(8):e2018893. PMID:31730189.

Fenton JJ, Weyrich MS, Durbin S, Liu Y, Bang H, Melnikow J. Prostate-Specific Antigen-Based Screening for Prostate Cancer: Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA. 2018 May 8;319(18):1914-1931. doi:10.1001/jama.2018.3712. PMID:29801018.

Epstein RM, Duberstein PR, Fenton JJ, Fiscella K, Hoerger M, Tancredi DJ, Xing G, Gramling R, Mohile S, Franks P, Kaesberg P, Plumb S, Cipri CS, Street RL Jr, Shields CG, Back AL, Butow P, Walczak A, Tattersall M, Venuti A, Sullivan P, Robinson M, Hoh B, Lewis L, Kravitz RL. Effect of a Patient-Centered Communication Intervention on Oncologist-Patient Communication, Quality of Life, and Health Care Utilization in Advanced Cancer: The VOICE Randomized Clinical Trial. JAMA Oncol. 2017 Jan 1;3(1):92-100. doi:10.1001/jamaoncol.2016.4373. PMID:27612178.

Fenton JJ, Robbins JA, Amarnath AL, Franks P. Osteoporosis Overtreatment in a Regional Health Care System. JAMA Intern Med. 2016 Mar;176(3):391-3. doi:10.1001/jamainternmed.2015.6020. PMID:26747062.

Fenton JJ, Franks P, Feldman MD, Jerant A, Henry SG, Paterniti DA, Kravitz RL. Impact of patient requests on provider-perceived visit difficulty in primary care. J Gen Intern Med. 2015 Feb;30(2):214-20. doi:10.1007/s11606-014-3082-8. Epub 2014 Nov 6. PMID:25373836.

Fenton JJ, Kravitz RL, Jerant A, Paterniti DA, Bang H, Williams D, Epstein RM, Franks P. Promoting Patient-Centered Counseling to Reduce Use of Low-Value Diagnostic Tests: A Randomized Clinical Trial. JAMA Intern Med. 2016 Feb;176(2):191-7. doi:10.1001/jamainternmed.2015.6840. PMID:26640973.

Amarnath AL, Franks P, Robbins JA, Xing G, Fenton JJ. Underuse and Overuse of Osteoporosis Screening in a Regional Health System: a Retrospective Cohort Study. J Gen Intern Med. 2015 Dec;30(12):1733-40. doi:10.1007/s11606-015-3349-8. Epub 2015 May 19. PMID:25986135.

Fenton JJ, Zhu W, Balch S, Smith-Bindman R, Fishman P, Hubbard RA. Distinguishing screening from diagnostic mammograms using Medicare claims data. Med Care. 2014 Jul;52(7):e44-51. doi:10.1097/MLR.0b013e318269e0f5. PMID:22922433.

Fenton JJ, Xing G, Elmore JG, Bang H, Chen SL, Lindfors KK, Baldwin LM. Short-term outcomes of screening mammography using computer-aided detection: a population-based study of medicare enrollees. Ann Intern Med. 2013 Apr 16;158(8):580-7. doi:10.7326/0003-4819-158-8-201304160-00002. PMID:23588746.