Martin Leamon, M.D.

Martin Leamon, M.D.


Addiction Psychiatry

Medical Student and Resident Education



  • Health Sciences Clinical Professor of Psychiatry


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

UC Davis Midtown Ambulatory Care Center

3160 Folsom Blvd, Suite 1400
Sacramento, CA 95816
Driving Directions

Primary Phone:

Additional Phone Numbers

Clinic Phone: 916-731-1830
Clinic Fax: 916-451-1037
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Philosophy of Care

Substance use disorders are disorders of brain function with emotional, psychological, behavioral, spiritual, physical and social manifestations. Treatment is guided by current clinical research, patient preference and availability of resources. Everyone’s needs are unique and care is a collaborative, ongoing, adaptable endeavor.

Clinical Interests

Dr. Leamon is an Addictions Psychiatrist who provides office-based outpatient treatment for Substance Use Disorders, including medication-assisted therapy for Opioid Use Disorders with buprenorphine or naltrexone.  He works with an integrated team from social work, pharmacy and nursing.

Research/Academic Interests

Dr. Leamon's academic interests are in substance use disorders, systems of care and medical education, but since he mainly works collaboratively, they are often swayed by what his friends are interested in convincing him to do.

Center/Program Affiliation

UC Davis Medical Group


M.D., Boston University School of Medicine, Boston MA 1985

B.A., Dartmouth College, Hanover NH 1979

Internship: Psychiatry, Letterman Army Medical Center, San Francisco CA 1985-1986


Psychiatry, Letterman Army Medical Center, San Francisco CA 1986-1989

Board Certifications

American Board of Psychiatry and Neurology, Addiction Psychiatry, 2016

American Board of Psychiatry and Neurology, General Psychiatry, 1990

Professional Memberships

American Academy of Addiction Psychiatry

American Psychiatric Association

American Society of Addiction Medicine

California Society of Addiction Medicine

Central California Psychiatric Society

Honors and Awards

�Top Doctor� in Addiction Medicine, Sacramento region. Selected by independent peer survey for Sacramento Magazine 2016, 2017

Kaiser Hospitals Foundation Award for Teaching Excellence., 2006

Teacher of the Year, Western Region, Association for Academic Psychiatry., 2005

Distinguished Fellow, American Psychiatric Association., 2003

Select Recent Publications

McCarthy JJ, Vasti EJ, Leamon MH, Graas J, Ward C, Fassbender C. The Use of Serum Methadone/Metabolite Ratios to Monitor Changing Perinatal Pharmacokinetics. J Addict Med. 2018 May/Jun;12(3):241-246.

McCarthy JJ, Leamon MH, Finnegan LP, Fassbender C. Opioid dependence and pregnancy: minimizing stress on the fetal brain. Am J Obstet Gynecol. 2017 Mar;216(3):226-231.

Leamon MH.  Prescription Drug Abuse and Mental Illness. Audio-Digest Psychiatry. 2015;44(23).

McCarthy JJ, Leamon MH, Willits NH, Salo RE.  The effect of methadone dose regimen on neonatal abstinence syndrome.  J Addict Med. 2015 Mar-Apr;9(2):105-10.

Salo R, Fassbender C, Iosif AM, Ursu S, Leamon MH, Carter C.  Predictors of methamphetamine psychosis: history of ADHD-relevant childhood behaviors and drug exposure. Psychiatry Res. 2013;210(2):529-35.

Leamon MH, Wright T, Myrick H.  Substance-Related Disorders.  In Essentials of Psychiatry, 3rd Edition.  Edited by Hales RE, Yudofsky SC, Gabbard GO.  Washington, D.C.  American Psychiatric Publishing, Inc. 2011;pp 83-110.

Salo R, Flower K, Arnavaz A, Leamon MH,  Nordahl TE, Galloway GP.  Psychiatric comorbidity in methamphetamine dependence. Psychiatry Res. 2011;186(2-3):356-61.

Salo R, Buonocore MH, Leamon M, Natsuaki Y, Waters C, Moore CD, Galloway GP, Nordahl TE.  Extended findings of brain metabolite normalization in MA-dependent subjects across sustained abstinence: A proton MRS study. Drug Alcohol Depend. 2011;113(2-3):133-8.

Leamon MH, Fields L. Measuring teaching effectiveness in a pre-clinical multi-instructor course. Teaching and Learning in Medicine. 2005;17(2): 119-129.

Leamon MH. Instructional Methods and Strategies (Chapter 5): Classroom Instructional Methods.  In The Guidebook for Clerkship Directors, 3rd ed.  Edited by Fincher RME.  Alliance for Clinical Education. 2005.