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Our Team


Jeffrey M. Van Diepen, President, CEO, MBA

Jeff Van Diepen

president@pestmaster.com

Mr. Van Diepen founded Pestmaster Services® in 1979 in the small Eastern Sierra town of Bishop, CA. He held a vision of providing the most effective pest management services possible, while maintaining an earnest concern for our environment and safety. Over the past three decades, he has transformed his small, local business into a national leader with locations coast to coast.

He is a government contracts specialist, GSA contract holder, and a mentor and coach for developing franchisees. He works with state and federal governments to develop economical and cost saving pest and vegetation management programs. Since 2004, Mr. Van Diepen has provided IPM training to the Department of Pesticide Regulation and authored numerous IPM programs for military installations. As an IPM trainer for the Los Angeles Unified School District, he contributes to steering pesticide use decisions on behalf of 1,100 schools representing millions of children.

Mr. Van Diepen is an expert in the control of invasive pests in riparian and aquatic ecosystems and has served as an expert witness for pesticide related legal matters. His extensive experience in pest and vegetation management programs continue to benefit large corporate and government accounts, including utility and railway companies and school districts.

Mr. Van Diepen holds an MBA from Pepperdine University, is a member of the National Pest Management Association, International Franchise Association, Aircraft Owners & Pilots Association, Professional Association of Pesticide Applicators, and the Los Angeles Unified School District's IPM Board. Mr. Van Diepen is a consultant for the Society of Industry Leaders and the Centers for Disease Control. He holds various structural and agricultural pest control licenses in the states of: Arizona, California, Florida, Idaho, Nevada, and Washington.


 

Chuck Jehle, Business Development & Contracts Manager

Chuck Jehle

cjehle@pestmaster.com

Chuck Jehle has over 25 years experience in working with small businesses in the roles of Sales, Marketing and Management. His recent experience includes assisting clients with government contract sales by attaining various levels of SBA status including 8(a), certified small business, veteran business, women's business, and HUBZone.

Mr. Jehle was introduced to entrepreneurship early in his business career. After receiving his Bachelor of Science degree in Marketing he entered the business world as Vice President and co-owner of Sea Quest, Inc. He helped build this sporting goods manufacturer from concept assisting in all areas of its rapid growth over a 10-year period.

Mr. Jehle's current skills encompasses contract sales, internet marketing and social media, as well as developing low cost 'guerilla marketing' methods to retain satisfied customers and increase sales.


Stuart Mitchell, DO, PhD, MPH, FAAIM, BCAAFP, DABFE, BCIM, CMI, BCE

Stuart Mitchell

Stuart Mitchell is an observing physician who is Board Certified in Family Medicine, Board Certified and a Fellow of Integrative Medicine, Diplomate of the American Board of Forensic Examiners, and a Certified Medical Investigator. In addition, he is an entomologist and is Board Certified in Urban, Industrial, Medical, and Veterinary. In addition, he holds PhD's in Biology, Entomology, and Zoology and has been in the pest management industry since 1982.  He has served as a technical specialist, technical director, consultant, expert-witness, columnist, author, lecturer, speaker, Board Certified Entomologist Program Director in 2009, and technical director of the National Pest Management Association.

Currently, Dr. Mitchell serves as principal technical specialist for PestWest Environmental, Sarasota, FL. In addition, he serves as a technical consultant and trainer for Pestmaster Services®, Bishop, CA.

If you have a challenging pest management issue, Pestmaster Services' team of highly trained pest management professionals can both diagnose and solve your problem in an environmentally friendly manner. If you have a technical question or require technical support, Dr. Mitchell is available to assist.