office: 707-330-1018



El Dorado Health Consulting, LLC, continues the 25-year consulting career of Dr. Dennis. For the last 7 years, he served as CIO and director of business development for Partnership HealthPlan of California (PHC). While leading IT for PHC, the organization received the Microsoft HealthPlan of the Year Award for 2005. In the business development role, he helped the HealthPlan re-bid the pharmacy benefit management arrangement saving the PHC over $1.5 million per year for three years and a sister healthplan $2.5 million per year over four years. Previously, he founded and managed a consulting practice with experience in managed healthcare, information technology, strategy, M&A and analysis. Clients included Catholic Healthcare West, AMISYS Managed Care Systems, North Health (a unit of the New Zealand Ministry of Health), CIGNA HealthCare of California, and the California Medical Association. Previously, Dr. Dennis was general manager of CIGNA Healthplan of San Diego and earlier, administrative vp of Greater San Diego Health Plan. For Whittaker Health Services, a national startup healthplan, he served as regional manager and sr. vp for corporate development. Previously he was an officer of the consulting arm of Whittaker Medicus and Medicus Systems with responsibility in international consulting and evaluation research. He is active in the Health Information Management and Systems Society (HIMSS), leading or participating on task forces and committees dealing with Health Information Exchange (HIE), community health organizations. He is a speaker and writer on ePrescribing and HIE. He holds an MBA and PhD from Tulane University and a BS in physics from Purdue University.


Angelica Herrera is a web developer for EHC. Ms Herrera worked at PHC for six years with positions as IT Assistant and beginning web development. She continues a program of independent study in web development and produced the EHC website. She has an Associates’ Degree in Computer Technology from Heald Business College.




EHC utilizes consultants in software development, healthplan management, pharmacy, and other topics on a project-by-project basis. Affiliated consultants are trained and experienced in various elements of the work that EHC executes and they work in close concert with Dr. Dennis on each project.


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