| Clinical Informatics Consulting |
| 2009 – present |
| Managing Director |
| Certified Consultant Terminologist |
| Mar 2013 – present |
| SNOMED International |
| Content Committee for SNOMED CT Content Committee |
| Apr 2010 – Jun 2015 |
| SNOMED International; elected by NLM |
| Hewlett-Packard Company |
| 2007 – 2008 |
| Health and Life Sciences, Information Management |
| Director of Medical Informatics, Applied Clinical Informatics |
| Computer Sciences Corporation |
| 2006 – 2007 |
| Global Health Solutions |
| Senior Industry Expert |
| Informatics Consulting |
| 2005 – 2006 |
| Consultant (Independent) |
| Health Language, Inc. |
| 2004 – 2005 |
| Director of Medical Informatics |
| Department of Health and Human Services | |
| 2003 – 2003 | |
| Office of Science and Data Policy (DHHS/OS/ASPE) | |
| Senior Policy Analyst |
| Centers for Disease Control and Prevention (CDC) |
| 2000 – 2003 |
| Senior Medical Informaticist |
| VA Medical Center, Salt Lake City, UT |
| 1997 – 1999 |
| Ambulatory Care and Medical Informatics Fellow |