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Founders
TPN pharmacist Rod Okamoto, RPH.
Nutrishare President
Rod served as Nutrition Support Pharmacist at the UC Davis prior to founding one of the first home TPN pharmacies in the country, MAPS Pharmacy, in 1979. MAPS was acquired by Delmed, Inc which later became part of NMC Homecare. He served as the General Manager for NMC Homecare’s Sacramento branch until 1991, when together with Tom Diamantidis, decided to form a consumer-based TPN organization named Nutrishare.
   
IV nutrition support pharmacist Tom Diamantidis, Pharm. D.
Nutrishare Vice President
Tom completed a Nutrition Support residency at Mercer University prior to joining Community Alimentation as their clinical pharmacy specialist in 1982. Community Alimentation became a part of NMC Homecare with Tom assuming the role of General Manager of NMC’s Chatsworth, California branch, NMC’s largest branch at the time. Tom and Rod Okamoto formed Nutrishare in 1991 in hopes of improving the lives of the Home TPN consumer.
   
Clinicians
HPN expert Greg Killmeier, Pharm. D., BCNSP
Nutrishare Operations Manager, Louisville, Ky
Graduate of the University of Kentucky.
Former Clinical Pharmacist at the University of Louisville Hospital in Louisville, Kentucky
   
Pediatric TPN specialist Richard Leong, Pharm. D., BCNSP
Nutrishare Operations Manager, Elk Grove, Ca
Home TPN pharmacy experience since 1994.
Served as Director of Pharmacy for OPTIONCARE,
Sacramento, California.
   
Tammy McDowell, Pharm. D.
Nutrishare Clinical Specialist
Graduate of the University of Kentucky
Former Director of Infusion Services at D&R Pharmacare in Louisville, KY
   
marianne opilla TPN nurse Marianne Opilla, RN, CNSN
Clinical Care & Research Specialist
Graduate of Virginia Commonwealth University School of Nursing.
Board Certified Nutrition Support Nurse 1992, Nutrition Support Nurse at Medical College of Virginia 1989-2005.

   
Total parenteral nutrition specialist Reid Nishikawa, Pharm. D., BCNSP, FCSHP
Nutrishare Director of Research and coordinator, Clinical Services
Formerly nutrition support pharmacist at the UC Davis Medical Center, Reid has published more than 20 papers in nutrition support and infectious disease. Reid also served on the transplant team and the University of Chicago.
Reid has lectured throughout the country for ASPEN and the OLEY Foundation on a variety of TPN-related subjects.
   
Adult and pediatric TPN nutrition specialist Craig Petersen, RD, CNSD
Nutrishare Nutritionist
Craig has served as a pediatric/adult nutrition support specialist at the UC Davis Medical Center since 1982. Craig has lectured throughout the country to clinicians and TPN consumers including ASPEN and OLEY Foundation conferences. Craig is also involved in several professional organizations and has coauthored numerous scientific papers and professional practice guidelines, relating to nutrition support.
   
Ian Robertson, M.S., Pharm.D., BCNSP
Nutrishare Clinical Specialist
Ian completed his B.S. and M.S. in the Department of Food Science and Technology at U.C. Davis. After working in the brewing industry for 4 years, he enrolled in the School of Pharmacy at U.C. San Francisco. During his final year there, he developed his interest in home care and completed clinical clerkships at Nutrishare and Optioncare. Upon earning his Pharm.D. in 1996, he accepted a clinical position at Optioncare where he specialized in TPN and pain management. Ian returned to Nutrishare in February 2006 as a Clinical Specialist.
   
TPN nutrition specialist John Siepler, Pharm. D., BCNSP, FCSHP, FCCP
Nutrishare Research Specialist and Clinical Professor, UCSF School of Pharmacy
UCSF School of Pharmacy: Pharm.D. 1974 Clinical Residency, UCSF:1975 California Society of Health-system Pharmacists: Pharmacist of the Year 2004 California Society of Health-system Pharmacists: Fellow Northern California Society of Health-system Pharmacists: Pharmacist of the Year 2003 American College of Clinical Pharmacy: Fellow
Board Certified Nutrition Support Pharmacist 1997 Formerly UC Davis Medical Center nutrition support pharmacist. John has published more than 100 papers and 25 book chapters on a wide array of subjects including nutrition support and gastroenterology.
   
Richard Ferris, Pharm D., ND, MBA, MPH, CGP, BCNSP
Nutrishare Cliinical Specialist
Rick received his undergraduate degree in pharmacy from Massachusetts College of Pharmacy and his PharmD from the University of Idaho in Pacatello. He received his Masters of Business Administration from Western New England College and his Masters in Public health from the University of Massachusetts in Amherst. He was originally Board Certified in Nutrition in the early 1990’s and recently became recertified. He is certified in Geriatric Pharmacy. He has been a part of the home infusion business since the early 1980’s in various capacities ranging from staff pharmacist to VP of Clinical Services and until recently CEO of IVEDCO a home infusion company based in Dallas.. Rick served as a JCAHO surveyor for 12 years and is presently the Board Treasurer for ACHC and sits on their standards committee. Rick joined Nutrishare in June of 2008.
   
Leslie Q. Yu, Pharm. D., BCNSP
Nutrishare Clinical Specialist
Graduate of University of Southern California, School of Pharmacy, Former Clinical Pharmacist at Chartwell UC Davis, California, Former Clinical Pharmacist at Coram, Sacramento, California
   
 
 
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