DCRF – Faculty


Linda Grinnell-Merrick MS, NP‑BC

Linda Grinnell-Merrick, MS, NP-BC

Linda Grinnell-Merrick currently resides in New York where she works as a nurse practitioner in the Division of Allergy, Immunology, and Rheumatology at the University of Rochester Medical Center. She studied at the University of Rochester and has been practicing rheumatology since 2012. Linda chartered the International Transplant Nurses Society of Upstate New York in 2004, served on the medical advisory board, is a speaker for the National Liver Foundation of Upstate New York, and a current board member of Kidney Cares—a local organization providing services to patients with renal diseases. She firmly believes in establishing long term relationships with her patients in order to provide chronic care.

Cathy Patty‑Resk MSN, RN‑BC, CPNP‑PC

Cathy Patty-Resk, MSN, RN-BC, CPNP-PC

Cathy Patty-Resk currently resides in Michigan where she works as a rheumatologist at Children’s Hospital of Michigan. She studied nursing at Wayne State University and has been practicing rheumatology since 2009. Cathy is recognized as a board-certified pediatric nurse practitioner, pediatric at-large-member and active member of the legislative advocacy team of the RNS. She has served as the co-editor of and a contributor to the Core Curriculum for Rheumatology Nursing and has partnered with the American Nurses Credentialing Center to launch the certification by portfolio for rheumatology nurses. She continually seeks opportunities to bring awareness of the need for pediatric pharmaceutical clinical trials and health care system barriers that negatively impact the health of children with autoimmune diseases.

Amanda Mixon, PA-C

Amanda Mixon currently resides in Colorado where she works as a rheumatologist at Arthritis and Rheumatology Clinic of Northern Colorado. She studied Interdisciplinary Studies in Social Science at Michigan State University, accomplished PA studies at the University of New England, and has been practicing rheumatology since 2007. Amanda has taught medical students at MSU, educated the public in regards to various autoimmune and arthritis-related topics, and volunteered to provide rheumatology care to the underprivileged. She firmly believes in treating each patient with compassion and empathy as if they are a member of her family while offering the most current and up-to-date practices.

Vickie Sayles, MHA, BSN, RN-BC, CRNI

Vickie Sayles currently resides in Ohio where she works as a clinical nurse manager for the Department of Rheumatic and Immunologic Diseases at The Cleveland Clinic Foundation. She studied nursing at Ohio University, obtained her BSN in 2008, her Masters in Healthcare Administration in 2019, and has been practicing rheumatology since 2008. Vickie was recognized as a “Tier 1” leader and volunteers for various projects both within and outside of the Cleveland Clinic. She has board certifications in Ambulatory Nursing, Rheumatology Nursing, and Infusion Nursing and is a Content Item Writer for the American Nurses Credentialing Center.


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Membership is not just about FREE Forum registration. The RNS offers many benefits for registered nurses (RNs) and advanced practice providers (APPs)—including nurse practitioners (NPs) and physicians assistants (PAs)—seeking to develop knowledge in their field, learn up-to-date patient care, and gain access to a wide range of engaging accredited events as well as a wealth of educational materials and content. Become a member today to begin influencing the world of your patients toward better treatment and advancing in the field of rheumatology. NOTE: Guest membership does not qualify for membership discounts.