Kokomo Providers

John K. Randall, R.Ph., M.D.

Owner and Supervising Physician

John K. Randall, R.Ph., M.D. is a board certified dermatologist and cosmetic surgeon. He started his medical career by receiving a Bachelor of Science degree in Pharmacy from Creighton University, graduating in 1981. Upon completion of pharmacy school, he attended the California College of Podiatric Medicine from 1981-1982 before deciding to attend medical school in 1983 at Northeast Ohio Medical University (formerly Northeastern Ohio Universities College of Medicine) graduating with Doctorate of Medicine in 1986.

During the years of 1986 through 1989, Dr. Randall participated in a three year Internal Medicine residency with his final year being honored with the position of Chief Resident. He then served three additional residency years, 1989-1992, specializing in Dermatology at the University of Minnesota. His journey continued as he participated in a two year (1992-1994) fellowship in Arkansas with the American Board of Cosmetic Surgery. In addition to his cosmetic fellowship, Dr. Randall was an Assistant Clinical Professor with the University of Arkansas.

Throughout his years as a practicing physician in the West Lafayette area, Dr Randall has continued to devote much of his time to educating medical students (Purdue University), medical residents, nurse practitioners, physician assistants, and medical assistants.   Dr. Randall’s culminated skills and credentials make for a unique blend of talents which allow Randall Dermatology patients superior medical care.

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Katrina Masterson

Nurse Practitioner

Katrina has secured three degrees from Purdue University. She earned a Bachelor of Science degree in 1987, followed by a Master of Science in 2002, and culminated her education experience in 2014 by earning her Doctorate in Nursing Practice.

Katrina’s career in dermatology started at Randall Dermatology in 2002 and has led to amazing experiences; a published author and lecturer, invitations to participate in summits to enhance dermatology nursing practice and patient care nationally and internationally. She is a contributing author in textbooks that will help shape the dermatology nurses of the future.

Katrina agrees that change is what keeps us fresh and passionate. Excellence is not the maintenance of standards, but the continued commitment to innovation and improvement. Knowing that we are performing well is great, but always striving for better is our real purpose.

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Brad Hurliman

Physician Assistant

Brad is a certified physician assistant who has been working in dermatology since he graduated with a master’s degree in physician assistant studies from the University of Kentucky in 2003. Brad joined Randall Dermatology in 2008 and is a proud member of the SDPA (Society of Dermatology Physician Assistants).

He strives to provide his patients with a variety of treatment options, some of which can be unique. Brad also performs many different procedures, both surgical and laser oriented. What you can expect when you see Brad is a sincere interest in the diagnosis and treatment of your dermatological concerns. His goal is for his patients to be completely satisfied with the care they receive. Some of Brad’s interests include spending time with family, weight training, playing sports, and listening to music (He’s a huge fan of Guns n’ Roses and Tesla).

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Laura Wavra

Nurse Practitioner

Laura jointed Randall Dermatology in 2009. She received a Bachelor’s Degree in Nursing from Purdue University in 1997 and a Master’s Degree in Nursing from Indiana University in 2003.

Laura is a certified Nurse Practitioner through the American Academy of Nurse Practitioners and a certified Dermatology Nurse Practitioner through the Dermatology Nursing Certification Board. Laura worked in family practice and internal medicine prior to joining Randall Dermatology. She is a member of the Dermatology Nurse’s Association and has served on the Dermatology Nurses Association Education Advisory and Program Planning Committees. Laura’s years of dermatology experience allow her to treat a wide variety of medical, surgical, and cosmetic dermatology needs. Laura currently lives in Kokomo with her husband and daughter. She enjoys spending time with her family and traveling.

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Phil DeTurk

Nurse Practitioner

Phil graduated from Purdue University in 2001 with a BSN, followed by a MSN in 2005. He joined Randall Dermatology in 2011 and continually holds a membership with the Dermatology Nurses Association (DNA). His interests include general dermatology, dermatologic surgery, and treatment of skin cancer.

Phil is an avid outdoorsman and enjoys fishing, mini-farming, and many other outdoor hobbies. Phil strives to make sure every patient is viewed as an individual who deserves and receives the best dermatologic care possible.

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Mark Manning

Nurse Practitioner

Mark completed his Doctorate of Nursing Practice (DNP) degree at the University of Washington. While at UW, Mark studied family practice and focused on general and cosmetic dermatology and serves his patients with any dermatological needs that may arise.

Mark is trained in the latest and finest cosmetic injection techniques. During his fellowship training, he trained with two of the top cosmetic injectors in the USA in the use of fillers and Botox. Mark is committed to the science and art of aesthetic skin care. Mark has trained extensively in pediatrics and greatly enjoys providing acne care to all ages.

Mark earned a prestigious international scholarship from Sichuan University in Chengdu, China. Mark is one of few international cosmetic injectors, injecting and teaching injection techniques to physicians and nurses in Kunming, China.

Mark joined Randall Dermatology and MedSpa after moving from Seattle back to Indiana in 2016, to be closer with his family. His objective is to help you feel better inside and out, and experience a sense of renewal and rejuvenation after each visit.

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