Our Providers

Linda Cooke,


Dr. Linda Cooke is a board certified Dermatologist. As a young mother, she earned her undergraduate degree from St. Louis University, graduation with Magna Cum Laude Honors. During her undergraduate studies, she was awarded the Craig Johnson Memorial Scholarship for her original research. She also selected to be a member Phi Beta Kappa which is usually considered to be the most prestigious academic honor society in the United States.

Dr. Cooke was one of the superiorly qualified applicants to be accepted in the Uniformed Services University of Health Sciences (USUHS) Medical School in Bethesda, MD. Dr, Cooke chose this acceptance over her acceptances to the Missouri medical schools as it relieved much of the financial burden associated with the medical school training. Students at USUHS are challenged to acquire the knowledge of traditional medical education while also navigating the course of military and public health medicine. By graduation, students are trained to be leaders and are able to confidently perform under difficult circumstances, anywhere in the world.


After her internship at National Naval Medical Center, Bethesda, Dr. Cooke was honored to be a part of the Vietnam POW study. She was then selected for U.S. Navy Flight Surgery training in Pensacola, FL. The United States Navy has the most intensive, rigorous, educational flight surgeon training course in the world. Flight Surgery students go through extensive physical training daily, land and water survival courses including helicopter and jet dunkersm and didactics on flight crew health and safety. There is also extensive training on mishap investigations. Dr. Cooke earned her U.S. Navy Flight Surgeon Wings in 1995.


After her tour as a Flight Surgeon, Dr. Cooke was selected into the the highly competitive dermatology residency at Naval Medical Center, San Diego. During residency, she participated in research resulting in FDA approval for the first hair removal laser safe to use in dark skin. She also published several articles in the leading dermatology journals and presented cases and research at many national dermatology meetings. She was also honored to serve as Chief Resident during her training in San Diego. Dr. Cooke was the first Navy resident allowed to do a Cosmetic Dermatology rotation with prestigious, civilian cosmetic dermatologist in La Jolla, CA.


After serving in the U.S. Navy for fifteen years, Dr. Cooke chose to come to Hannibal, MO. This area is greatly underserved by dermatology. Dr. Cooke feels her well-rounded training enables her to have a positive impact on the community by serving her dermatology patients. The area also provides wonderful environment for her 6 children and 5 grandchildren and is not far from her extended family in St. Louis.


Dr. Cooke has been in Hannibal serving dermatology since June 2004. She is committed to the community and completely dedicated to providing the best dermatology care to her patients.

Susan Voss




  • Registered nurse for over 30 years, 20 years of that as a nurse practitioner

  • After practicing as an FNP for over ten years I transitioned to dermatology

  • Family Nurse Practitioner: Eastern MO Health Services, Pike Medical Clinic, QMG in Canton, MO, and Hannibal Clinic in Palmyra, MO

  • Riverside Dermatology with Dr. Cooke since 2009 as a Dermatology Certified Nurse Practitioner

  • Research Investigator for Corrona Psoriasis Foundation at Riverside Dermatology


  • Doctorate of Nursing Practice from University of Missouri, Kansas City

  • Post Masters Family Nurse Practitioner from University of Missouri, St. Louis

  • Masters of Science in Nursing, Women's Health from University of Missouri, Kansas City

  • Bachelor of Science in Nursing, Hannibal LaGrange University

  • Diploma in Nursing, Blessing Hospital School of Nursing


Awards, Honors, and Certifications:

  • Board certified Family Nurse Practitioner,  American Nurse Credentialing Center

  • Dermatology Certified Nurse Practitioner, Dermatology Nurse Certification Board

  • Fellow of the American Association of Nurse Practitioners

  • Clinical Excellence Award recipient for Missouri, 2013, American Association of Nurse Practitioners

Clinical Interests:

  • Psoriasis, Eczema, Dermatitis, Acne, Rashes, Blistering Disorders, Skin Malignancies, Skin infections, Hair and Nail Disorders

  • Skin disorders across the age spectrum

  • Cosmetics especially neuromodulators


Member of:

  • American Association of Nurse Practitioners

  • Missouri Nurses Association

  • American Nurses Association

  • Dermatology Nurse Association


Personal Interests:

  • Married to Tom Voss, Plant Chemist at Continental Cement

  • Children, Meredith Voss, 25, and Alexander "Alec" Voss, 23

  • Graduate Hannibal High School

  • Spending time with family and friends, reading, and pickle ball

Tara Robertson,FNP-C


Tara Robertson, FNP-C, is board certified as a Family Nurse Practitioner. She has worked as a Nurse Practitioner in a primary care setting for the past 5 years and has worked as an adjunct clinical professor with John Wood Community College. Tara completed her bachelors and masters of science in nursing at Southern Illinois University in 2011 and 2014 with a graduate program focus as a Family Nurse Practitioner. She is a member of the American Association of Nurse Practitioners. Tara lives with her husband and three children in Quincy, IL where she was born and raised. She enjoys spending time with her family and friends, exercising, and being outdoors.

Kathleen Haycraft


It is bittersweet to announce that after over 45 years of experience in healthcare Kathleen Haycraft has decided to retire from Riverside Dermatology. This will allow Kathy to spend more time with her family, travel, and serve her community.  Kathy has provided top tier patient care during her career and contributed to the community in countless ways. We have been so fortunate to have such an exceptional provider for so many years and will miss her very much. We hope she enjoys the much deserved time with her family.