Dr. Hammond graduated from the University of Miami Miller School of Medicine, Florida [AOA Medical Honor Society 1978], and the Mercy Medical Center Family Medicine Residency in Denver, Colorado [1983]. He has practiced at Westminster Medical Clinic (WMC) for 33 years and is Clinical Professor in the Department of Family Medicine at the University of Colorado.

WMC is recognized by the National Committee for Quality Assurance (NCQA) as a Patient-Centered Medical Home (PCMH - Level 3) since 2009, as well as, in their Diabetes and Heart/Stroke quality programs. The clinic was a Colorado Multi-Payer, Multi-State Patient-Centered Medical Home Pilot site from 2009 to 2012, and it received the PCMH Best Practice of the Year award in 2010 from the Colorado Academy of Family Physicians. In addition, following a rigorous nationwide review process, WMC was selected as 1 of 30 exemplary primary care practices by the Robert Wood Johnson Foundation in 2013 and participated in their Learnings from Effective Ambulatory Practices (LEAP) project from 2013-2017.

From 2008 to 2011, he was chair of the Colorado AFP's PCMH Committee, and he served as the medical director for the Colorado Systems of Care/PCMH Initiative (directed by the Colorado Medical Society) from 2009 to 2011. He was selected as the 2011 Physician of the Year by the Colorado AFP. Dr. Hammond successfully integrated mental health into primary care through the Advancing Care Together collaborative (ACT 2012-2015) and the State Innovation Model (SIM 2016-2018). He is currently Co-Chair of the Colorado Primary Care Collaborative (CPCC) and lectures nationally on the PCMH and the Medical Neighborhood.