Our Providers



Roger I. Ceilley, M.D.

Dr. Ceilley received his Medical Degree and dermatology residency training at the University of Iowa. He is board-certified in dermatology and dermatopathology and is a fellow of the American College of Mohs Micrographic Surgery and Cutaneous Oncology. He has served as president of the American Academy of Dermatology, president of the American Society for Dermatologic Surgery, and is a diplomat of the American Board of Dermatology. He is the director of our training program in Mohs Surgery and Dermatologic Surgery.

Andrew K. Bean, M.D.

Dr. Bean is board-certified in dermatology. His Medical Degree was earned at the West Virginia University School of Medicine and his dermatology training was completed at Wright State University School of Medicine. He completed an 18-month fellowship in Mohs Micrographic Surgery with Dr. Ceilley and became an associate of Dermatology, P.C. in May 1993. Dr. Bean is a fellow of the American Academy of Dermatology.

Joshua B. Wilson, M.D.

Dr. Wilson is board-certified in dermatology. His Medical Degree was earned at the University of Iowa where he also completed his training in dermatology. Dr. Wilson completed his Mohs surgery fellowship with Dermatology, P.C. under the training of Dr.’s Ceilley and Bean. He is a member of the American Academy of Dermatology and other local and national associations.

Rebecca L. Rovner, M.D.

Dr. Rovner is board-certified in Dermatology by the American Board of Dermatology. She earned her Medical Degree at the University of Iowa and completed her Dermatology Residency at the University of Loyola-Chicago. She is a member of the American Academy of Dermatology and other local and national associations. We welcome Dr. Rovner to Dermatology, P.C. beginning in October 2016.


Physician Assistant/Nurse Practitioner


Bailey O’Donnell, P.A.-C.

Bailey is a state licensed Physician Assistant accredited by the National Commission on Certification of Physician Assistants (NCCPA). She earned her Master of Physician Assistant Studies at St. Ambrose University, after completing her Bachelor of Science degree in Kinesiology and Health at Iowa State University. Bailey is a member of the American Academy of Physician Assistants and the Iowa Physician Assistant Society. She joined Dermatology P.C. in February 2020.

Elizabeth Boeckman, P.A.-C.

Elizabeth is a state licensed Physician Assistant accredited by the National Commission on Certification of Physician Assistants (NCCPA). She earned her Master of Physician Assistant Studies degree from St. Ambrose University after receiving her Bachelor of Arts degree in Biology from the University of Northern Iowa. She is a member of the American Academy of Physician Assistants, Iowa Physician Assistant Society, and the Society of Dermatology Physician Assistants. Elizabeth joined Dermatology P.C. in February of 2020.

Emily Hoffman, PA-C

Emily is a state licensed Physician Assistant accredited by the National Commission on Certification of Physician Assistants (NCCPA). She earned her Masters of Physician Assistant Studies from St. Ambrose University after receiving her Bachelor of Science degree in Kinesiology from Iowa State University. Emily is a member of the American Academy of Physician Assistants, Iowa Physician Assistant Society, and Society of Dermatology Physician Assistants. She joined Dermatology PC in September 2020.

Jennifer A. Vandivier, P.A.-C.

Jennifer is a state licensed Physician Assistant accredited by the NCCPA. She graduated in 2002 from Des Moines University with a Bachelor of Science in Physician Assistant studies after achieving her Bachelor of Science-Nursing from Mount Mercy College. Jennifer has been practicing dermatology in our clinic since that time. Along with her impressive volunteer work, she is an active member of the following professional societies: The Iowa Physician Assistant Society, The American Academy of Physician Assistants, and the Society for Dermatology PA’s.

Mckenzie Tonks, P.A.-C.

McKenzie is a state licensed Physician Assistant accredited by the National Commission on Certification of Physician Assistants (NCCPA). She earned her Masters of Science in Physician Assistant studies from Southern Illinois University after receiving her Bachelors of Science in Human Movement Science from Utah State University. She is a member of the American Academy of Physician Assistants and the Society of Dermatology Physician Assistants. McKenzie joined Dermatology P.C. in October 2022.

Sonja Baer, P.A.-C.

Sonja is a state licensed Physician Assistant accredited by the NCCPA. She has a Masters degree in Physician Assistant studies from Des Moines University. Sonja also has a Masters degree from Drake University in higher education and a Bachelors degree from Iowa State University in Physical education with a minor in Exercise science. As a Physician Assistant Sonja has worked in Orthopedics and also has 15 years experience as a certified athletic trainer and certified strength and conditioning specialist. She is currently a member of the Society of Dermatology Physician Assistants.

Kristain “Vy” Luong, ARNP

Vy Luong is a state licensed Nurse Practitioner accredited by the American Nurses Credentialing Center (ANCC). She earned her Master of Family Nurse Practitioner at Simmons University after completing her Bachelors of Nursing Sciences at Grand View University. As a nurse and nurse practitioner Vy has experience in cardiology. Vy is a member of the Nurse Practitioner society of the dermatology nurse association. Vy joined Dermatology PC in 2023.

Courtney Marquis, ARNP

Courtney Marquis is a state licensed Nurse Practitioner accredited by the American Association of Nurse Practitioners (AANP). She earned her Master of Science in Family Nurse Practitioner through Clarkson College in Omaha, NE after completing her Bachelors of Nursing Sciences at Clarkson College as well. Courtney has experience as a nurse in the Neonatal Intensive Care Unit and Labor and Delivery. She is a member of the Nurse Practitioner Society of the Dermatology Nurses Association. Courtney joined Dermatology P.C. in March 2024.

Brooklyn Waller, PA-C

Brooklyn is a state licensed Physician Assistant accredited by the National Commission on Certification of Physician Assistants (NCCPA). She earned her Master of Physician Assistant studies from Creighton University after receiving her Bachelor of Arts degree in Biology from Wartburg College. She is a member of the American Academy of Physician Assistants and the Society of Dermatology Physician Assistants. Brooklyn joined Dermatology P.C. in April 2024.