Meet Our Team


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Tiffany Katsaros, CRNP

Tiffany is a preventative health enthusiast with several years of experience in the primary care setting. She blends her foundational expertise in whole body care to lead our Integrative Acne and Rosacea treatments at OneSkin. Tiffany brings this holistic approach to her cosmetic treatments as well. As an advanced injector, Tiffany helps patients feel comfortable in their own skin creating care plans that deliver naturally beautiful results.

Caitlin Conklin, RN

Cally is a Registered Nurse with an extensive background in bedside ICU care and a passion for preventative health and wellness as a result of her experiences. As an Aesthetics Nurse Cally offers minimally invasive procedures to support healthy skin and aging. With a focus on long-term care plans and bio-individual education, Cally helps patients feel their best at every age.

Lindsey Henry, Operations Manager

Lindsey brings her energetic, caring personality to our foundational leadership team at OneSkin Integrative Dermatology! Starting her career as a licensed massage therapist in 1999, Lindsey's experience in patient care, front office operations and curating a successful client experience has enhanced our growth and offerings at OneSkin Integrative Dermatology. A wife and mother of two wonderful children, Lindsey looks forward to welcoming you to our practice!

Marcilyn Perez, MS, NRCMA

Marcie has worked in the medical field for over a decade. As a medical assistant and health coach she has found passion in helping others tap into their inner most potential, finding their direction and accomplishing their goals. With each of us born with unique desires and motivations, Marcie will help you find your qualities that align with your goals to help you succeed along the way. Marcie graduated from Liberty University with her masters’ in Exercise Science and Wellness and is ready to help support patients through their whole skin health journey through our Mind & Body offerings.

Rachel Day, M.D.

Dr. Rachel Day, a Fellow of the American Academy of Dermatology (FAAD), founded OneSkin Integrative Dermatology in Chambersburg, PA to bring care back to healthcare. Under the direct care model, she offers complete skin care in a personal, approachable setting for the whole family. Rooted in her belief that a purposeful partnership with patients is the foundation to achieving their skin health goals, Dr. Day and her team offer a refreshing option to the traditional insurance-based system. At OneSkin Integrative Dermatology each patient is approached as a whole. Dr. Day and her team offer individualized medical, surgical, and aesthetic dermatology treatment plans with an emphasis on education, prevention, and maintenance. Her holistic practice approach is supported by offering up-to-date health, nutrition and women’s wellness services. From the treatment of rashes and skin cancer to enhancing one's natural beauty throughout the process of aging gracefully, Dr. Day prides herself on her honesty, integrity, and compassion in guiding patients through their skin health journey.

Se habla espanol tambien.

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211 Grant Street

Chambersburg, PA 17201

Call: 717-744-0900

Trusted, Proven

They took me on time. Dr Day was very friendly, understanding and knowledgeable about everything. She answered all my questions clearly. She removed 3 spots and it went well. I will go back to her again.

D.G. Google

Easy to make an appt, friendly staff, on time

H.M. Google

The staff and practitioners at One Skin listened to my concerns and gave great advice for treatment. I am delighted with the results!

V.E. Google

Thorough discussion regarding my skin problem with the doctor. The approach to resolving my skin care problem was clearly explained allowing me to be confident in a resolution. Friendly and prompt staff made the experience comfortable and enjoyable.

S.H. Google

It was my first visit & because I preregistered online, checking in was quick and easy. The office space is beautiful & very comfortable, and every staff member I met was very nice. The doctor explained everything she was doing and took the time to answer all my questions. It was a very pleasant experience.

P.M. Google


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*Individual results are not guaranteed and may vary from person to person. Images may contain models.