Meet the Staff

Randall Dermatology Provider Team
Dedicated to Serving You

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.

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Theresa Coyner

Nurse Practitioner

Theresa received her BSN at Indiana State University and MSN at Indiana University where she graduated with honors. She is an active member of the American Nurses Association, Indiana Nurses Association, Sigma Theta Tau International, and the Dermatology Nurses Association.

Theresa is also a co-author of an article published in the Journal of Dermatology Nursing, as well as two chapters in the Dermatology Essentials Textbook. Her special dermatology interests include acne, psoriasis, eczema, and patient education. Theresa loves empowering patients to identify possible skin cancers and keep their skin healthy.

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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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Holly Howe

Nurse Practitioner

Holly received her Bachelor’s Degree in Nursing in 2008 from Purdue University as well as her Master’s Degree in 2010. She began her dermatology career when she joined Randall Dermatology in 2010. Holly is currently a member of the Dermatology Nurses Association. Holly enjoys practicing general dermatology and always looks forward to meeting new people.

The relationship with her patients is what she values most of all. She strives to make sure her patients are involved in their plan of care. She enjoys her time at Randall Dermatology, and hopes to spend many more years with the practice providing high quality care for her patients. Holly enjoys spending time with her family on their farm and homeschooling her two children.

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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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Shelley Velickoff

Nurse Practitioner

Shelley received her Bachelor’s degree in Nursing from Pacific Lutheran University in 2006 and her Master’s degree in 2012 from University of Cincinnati. She has continued her work in Dermatology since 2012 starting in Tacoma, Washington with a recent relocation to Indiana to be closer to her family.

Shelley joined the team at Randall Dermatology in 2021. Shelley proudly holds the DCNP certification (Dermatology Certified Nurse Practitioner) as well as the ANCC certification as a Family Nurse Practitioner. Her dermatology special interests include acne, cosmetics (Botox), and general dermatology. Primarily she enjoys helping her patients with their skincare needs. In her spare time, she looks forward to traveling, doing stained glass with her daughter, and exercising.

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Stephanie Davitto

Nurse Practitioner

Stephanie is a certified nurse practitioner with a Bachelor of Science in Nursing and a Master of Science in Advanced Practice Nursing from Indiana State University. Since graduation in 2013, she has worked in emergency medicine and wellness/family practice which helped discover her interest in dermatology. She is also certified by the American Academy of Nurse Practitioners.

Stephanie, her husband and three children recently relocated back to their hometown of Terre Haute. In her free time, she enjoys staying busy by hosting gatherings, boating, cooking, and of course having fun with her growing kids.

She appreciates the teamwork approach that the Randall Dermatology family provides and utilizes the same mindset in her day-to-day practice to help keep patients involved in their care.

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MedSpa Day Spa Esthetician Team

Jacqueline Scott

Esthetic Director/ Licensed Esthetician- Kokomo and West Lafayette

I have practiced Esthetics for nearly 20 years, I joined Randall Dermatology & MedSpa Day Spa 17 years ago. I am the MedSpa Day Spa Director, but I also treat clients three days a week. I have a passion for helping clients achieve their skin care goals while building family like relationships with them. I enjoy traveling, spending time with my husband, five wonderful children, and my lovely granddaughter.

Part of my success as an Esthetician is having the opportunity to work under Dr. Randall. During this time, I was able to absorb extended knowledge about medical skin conditions and how to treat the skin with the most advanced technologies. I am certified in numerous Physician Level skin care lines as well as Physician Level devices/lasers. Continuing my education is extremely important so that I can customize the best skin care plan for my clients needs. My years of expertise and hands on experience allow me to deliver the results that my clients are working towards. Although, I love event planning and hands on training with our Estheticians, there is nothing better than working in the treatment room making each client feel and look their best. I am in love with a variety of advanced treatments from Physician Level Chemical Peels, Radiofrequency Skin Tightening with Morpheus8, Platelet Rich Plasma, Diamond Glow Infusion Facials, and much more. You will see me in Kokomo and West Lafayette the majority of the time.

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Lisa Becker

Licensed Cosmetologist/ Licensed Electrologist - West Lafayette, Frankfort, Rensselaer

Lisa has been in the Cosmetic and Skin Care industry for 27 years. Lisa joined Randall Dermatology & MedSpa Day Spa Team 9 years ago, being an asset ever since. Lisa enjoys spending time with her family and friends. Lisa has a passion for all things anti-aging from Physician Level skin care products to age corrective services.

Lisa has a unique position as she travels to many locations sharing her knowledge with a variety of communities, you can visit Lisa at West Lafayette, Frankfort, and Rensselaer. Lisa specializes in Physician Level Chemical Peels, Microdermabrasion, Diamond Glow Infusion Facials, and Photodynamic Therapy.

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Celie Bobo

Licensed Esthetician- West Lafayette

Celie has been with Randall Dermatology & MedSpa Day Spa team for the past 7 years. Celie is currently attending Purdue working toward her degree in Business Administration. Celie enjoys crocheting and yoga. Celie is experienced in a variety of Physician Level services including Diamond Glow Infusion Facials, Laser Hair Reduction, Radio Frequency Skin Tightening, and Microneedling; just to name a few. Her passion is to help her clients reach their optimal skin care goals. You can visit Celie at our West Lafayette location.

Stephanie Gingerich

Licensed Esthetician- Kokomo

I have been a part of Randall Dermatology & MedSpa Day Spa for 6 years. During this time, I have gained many levels of expertise in the medical esthetics industry. When I’m not treating clients, I am spending time with my husband and six beautiful children. I have a passion for customizing a skin care routine that will help my clients in reaching their desired goals. I love developing new techniques to ensure they have the best experience possible.

I am proficient in many Physician Level services including, Radio Frequency Skin Tightening treatments, Diamond Glow Infusion Facials, Lash Lifting, and Morpheus8 Radio Frequency. I am privileged to be able to help others feel confident in their own skin. I love to help my clients receive the best value with our monthly subscription plans.

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Megan Jackson

Licensed Esthetician- West Lafayette and Westfield

I have loved working for Randall Dermatology & MedSpa Day Spa for the last 3 years. Working in the medical esthetics industry has helped further my love for medical grade services. I enjoy helping my clients start their skin care journey. When I’m not working magic in the treatment room, I am saving all of my energy to keep up with the light of my life, my four-year-old son.

I have advanced experience with our Diamond Glow Infusion Facials, Microneedling, Lash Lifts, and Physician Level Chemical Peels. One of the things I love most about my profession is I never feel like I’m at ‘work’. I truly enjoy working with clients to achieve their skin care goals. My clients leave the treatment room relaxed, resurfaced, and with a smile on their face… that is the best compliment for myself.

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Lara Ling

Licensed Esthetician- West Lafayette

Lara is a 15-year member of Randall Dermatology & MedSpa Day Spa Team! After many years in the administrative world, she chose to pursue her goals and become a Licensed Esthetician. In her off-time Lara loves to create and craft, staying healthy and fit is also a passion of hers. Lara is extremely passionate about helping others achieve their desired results from head to toe. Lara is vastly experienced and practical; she’s been known to be called the ‘skin care guru’.

Lara can help with generating a specialized skin care regimen for your skin care needs. She is skilled in a wide variety of Physician Level services including Radio Frequency Skin Tightening and Resurfacing, Laser Hair Reduction, Intense Pulse Light Therapy, Microneedling or Platelet Rich Plasma, as well as Chemical Peels. Lara enjoys helping you address your best level of skin care.

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Nadine Vogrig

Massage Therapist- West Lafayette

It is truly satisfying to be able to say that I have been a Massage Therapist for almost 20 years. My passion for body work began as a fascination with human anatomy and physiology when I was a teenager. It would be many years, and four children later, before I would earn my degree as a Massage Therapist in 2003

After graduating Valedictorian of my class, I decided upon two specialties - Craniosacral Therapy and Muscle Release Techniques – to further enhance my practice. Both modalities have proved valuable to help my clients recover function and reduce discomfort. My many years of experience, a continued interest in the complexities of the human form and my belief in the positive power of touch create an excellent massage experience.

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