
Meet Our Team

Larry D. Stonesifer, MD, FACP, FACE
Board Certified Endocrinologist
Dr. Stonesifer is certified by the American Board of Internal Medicine and the subspecialty Board of Endocrinology and Metabolism, and has been in private practice since 1984. Full Bio

Marcia K. Miller, BSN, MSN, ARNP
Bachelor of Science, Master of Science in Nursing,
Advanced Registered Nurse Practitioner
Marcia Miller joined Dr. Stonesifer’s endocrine practice in 2004 and specializes in treating people with Type 1 and Type 2 diabetes. She is a certified Family Nurse Practitioner. Full Bio

Marjorie Sladek, BSN, MSN, ARNP
Bachelor of Science in Nursing, Master of Science in Nursing, Advanced Registered Nurse Practitioner
Marjie received her Bachelor of Science degree in Nursing in 1976 at California State University in Los Angeles and a Masters degree in nursing in 1981 at Loma Linda University. Full Bio

Kathy Phelan
Practice Manager
Kathy joined Dr. Stonesifer in 1992, with a shared vision of creating an all inclusive center of excellence for patient care and the treatment of endocrine disorders.

Nancy Doty, RN, BSN, CDE
Certified Diabetes Educator
Endocrine Nurse Specialist

Joyce, Kendra and Davina (left to right)
Front Office Staff
“Our staff works as a team. We strive to achieve a continuity of care and provide you with a strong sense of familiarity, from the calls into the office, to a personal greeting from our friendly receptionists.”

Lynea Young (left)
Shauna Rider (right)
Certified Medical Assistants
“Caring heart, always ready with a smile.”

Cindy M. Stock, CMA (left)
Tammy R. Lovie Yokum, CMA (right)
Clinical Research Coordinators
“Our mission is to provide detailed care while researching advances in health care. We enjoy working with patients from all backgrounds. We look forward to helping you help yourself while helping others in our supportive environment."