KSC Care Team

Meet Our Providers

We offer state-of-the-art treatment for patients who have rheumatoid arthritis, lupus,
osteoarthritis, and many other autoimmune diseases, as well as osteoporosis.

Dr. Robert Jackson, D.O., F.A.C.O.I.

Internal Medicine & Rheumatology

Dr. Robert Jackson, D.O., F.A.C.O.I., has served as the Associate Dean of Campus Academic Affairs, and as Chairman and Associate Professor of Internal Medicine at the Kirksville College of Osteopathic Medicine. He is board certified in the specialty of Internal Medicine as well as the sub-specialty of Rheumatology. Dr. Jackson has also completed a four year tour of duty with the National Health Corps in rural Southern Missouri.

Dr. Jackson is currently president of Premier Specialty Network (PSN) and is a full time PSN Rheumatologist, practicing at nine different hospitals in the states of Missouri and Iowa.

While directing NMRHN, Dr. Jackson became acutely aware of the need to improve access to rural healthcare. With his guidance and leadership, NMRHN helped develop 5 Critical Access Hospitals (CAH) in northeast Missouri (Unionville, Milan, Macon, Memphis and Brookfield). Subsequently, Dr. Jackson developed a unique model of outreach specialty medical service for Rheumatology to serve the same hospitals.

Lary Ciesemier, D.O., F.A.A.A.I.

Allergy, Asthma & Immunology

Dr. Lary Ciesemier, D.O., F.A.A.A.I. is board certified in Internal Medicine and Allergy, Asthma and Immunology. He received his undergraduate degree from the University of Wisconsin, Milwaukee, and his Doctor of Osteopathy from A.T. Still University in Kirksville, MO.

He completed his residency in Internal Medicine at Northeast Regional Medical Center in Kirksville and a fellowship in Allergy, Asthma and Clinical Immunology at Creighton University Medical Center, Omaha, NE. Dr. Ciesemier is an Associate Professor and Chairman of the Department of Internal Medicine at A.T. Still University.

He is in private practice at Kirksville Allergy and Asthma and is the only board certified Allergist in Kirksville.

Our Nurse Practitioners

Libby Allen

Libby Allen, ARNP, FNP

Nurse Practitioner

Elizabeth “Libby” Allen is a Family Nurse Practitioner in Browning, Missouri. She graduated with honors in 2016.

Shawnee Kellison

Shawnee Kellison, FNP

Nurse Practitioner

Shawnee Kellison, FNP-BC is a board certified Family Nurse Practitioner with 22 years of experience as an advanced practice nurse and over 30 years in the nursing profession. She is recognized as an advanced practice nurse in both Missouri and Iowa. Her primary focus has been on treating adults with chronic health issues in an Internal Medicine setting, but also has experience in geriatrics and dermatology.

She received her Bachelor of Science in Nursing from Truman State University (formerly Northeast Missouri State University) in Kirksville, MO and her Masters of Science in Nursing from the University of Missouri-Columbia.

Shawnee is also employed as a clinical faculty member with ATSU through the Department of Family Medicine. Her primary role with Premier Specialty Network will be in providing care within the rheumatology setting.

Shawnee is a lifelong resident of northeast Missouri. She has three daughters and resides with her husband on a farm in Kirksville.

Tonia Nerini, FNP

Nurse Practitioner

Tonia received her rheumatology training from Dr. Robert Jackson, DO/FACOI, a board-certified rheumatologist licensed in seven states, including Iowa and Missouri. She completed her coursework for rheumatology through the American College of Rheumatology.

She Attended Moberly Area Community College, Chamberlain University, and in 2018 received her Master’s in Nursing Degree from Maryville University where she graduated second in her class.

She has worked in several locations in both Iowa and Missouri. Her other areas of experience include five years of hospice case management & administration, acute and long term care, private facility consultant and also worked as a regulatory facility advisory nurse.

She currently resides in Bevier, Missouri. She has two daughters, a dog and enjoys traveling.

Shayla Sanders, ARNP

Nurse Practitioner

Shayla Sanders is a healthcare professional and licensed Advanced Practice Registered Nurse (A.R.N.P.) practicing in Missouri and Iowa. She has over 10 years of experience in diverse settings in rural health care. Throughout her career, she has exhibited outstanding oral, written and hands on skills and has demonstrated strong problem solving abilities.

She is a team player who works effectively with professionals of diverse backgrounds to develop excellence in healthcare. She has recently opened Rheumatology Clinics at Wayne County Hospital in Corydon, IA and Monroe County Hospital in Albia, IA.

She also has Rheumatology clinics in at Van Buren County Hospital, Keosauqua, IA and Davis County Hospital, Bloomfield IA.

Shayla Sanders began her career as a registered nurse working in acute and emergency care in a critical access hospital. She later expanded her career into administration while finishing her Masters of Science in Nursing at Massachusetts College of Pharmacy and Health Sciences. She went on to become Board Certified as a Family Practice Nurse Practitioner.

Once board certified she chose to specialize in Rheumatology and completed a year rotation with Dr. Robert Jackson as well as completing her Advanced Rheumatology Course through the American College of Rheumatology. Since her initial experience in Rheumatology, Shayla has effectively initiated her own independent leading edge rheumatology clinics which have benefited the communities that she serves.

Shayla lives in Pollock, MO with her husband and children. She commutes to several additional locations in Iowa and Missouri to assist in providing access to Rheumatology services in under served areas.