Team of Instructors – Diabetes Educator Course

DiabetesEd Specialist Course Faculty

Beverly Dyck Thomassian, RN, MPH, BC-ADM, CDCES

Author, Nurse, Educator and Clinician, Beverly Dyck Thomassian has specialized in diabetes management for the past twenty years.  Her work experience includes establishing outpatient ADA Recognized Diabetes Education programs to implementing innovative inpatient diabetes care programs.  She is Board Certified in Advanced Diabetes Management and is a nationally recognized speaker and advocate, dedicated to improving diabetes care. She is a working educator, currently serving as a Diabetes Program Manager and is an Associate Clinical Professor in the graduate-nursing program at UCSF. As president and founder of Diabetes Educational Services, Beverly is dedicated to optimizing diabetes care and improving the lives of those with diabetes.


Dana Armstrong, RD, CDCES

Dana has been in private practice for over 24 years and recently opened the doors to her own clinic, Diabetes and Nutrition Support Services in Salinas, CA. Dana  has developed educational programs that have benefited more than 6000 patients with diabetes, and specializes in the use of insulin pumps and continuous glucose sensing technology, as well as a patient centered approach to diabetes treatment. She speaks nationally on diabetes care and management to both health care professionals and people with diabetes. Dana is an author, and has written two books and investigator initiated studies in diabetes as well. Having a child with diabetes, she combines her professional knowledge with personal experience and understanding.


Diana Isaacs, PharmD, BCPS, BC-ADM, BCACP, CDCES

We are thrilled to welcome our newest speaker, Diana Isaacs, who will be joining us in Sacramento 2021! Diana is the Continuous Glucose Monitoring (CGM) Program Coordinator and Endocrinology Clinical Pharmacy Specialist at the Cleveland Clinic Diabetes Center. She provides medication management and runs a robust CGM shared medical appointment program.

Dr. Isaacs has served in leadership roles for several pharmacy and diabetes organizations. She has numerous diabetes publications and research projects with a focus on medications, CGM and diabetes technology. Dr. Isaacs was awarded the Ohio Pharmacists Association Under 40 Award in 2019. She was named the 2020 AADE Diabetes Educator of the Year and her educational platform is promoting use of CGM for people with diabetes. 


Lonnie Vaughn, RNC, BSN, CDCES

As a leader in the field of diabetes management, Lonnie has been championing best care practices at Doctor’s Hospital in Modesto for over 20 years. As a certified diabetes educator, trainer, mentor and advocate, her passion and commitment to improving diabetes care is valued by patients and professionals alike.  Lonnie’s expertise and experience uniquely qualify her to speak on a multitude of diabetes related topics that not only inform but inspire.


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The use of DES products does not guarantee the successful passage of the CDCES exam. NCBDE does not endorse any preparatory or review materials for the CDCES exam, except for those published by NCBDE.

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