Arleen More O’Ferrall, MSN, BSN, RN, APNP, CANS


Meet Arleen, Nurse Practitioner, Certified Aesthetic Nurse Specialist & Clinical Educator

Arleen attended Ursuline College on scholarship and graduated with honors with a bachelor of science degree in nursing in 1998. She then worked at Johns Hopkins Hospital in Baltimore for several years in the otolaryngology and neuroscience departments, where she achieved subspecialty certification as a neuroscience critical care nurse. She went on to obtain her master of science in nursing degree from the University of Milwaukee-Milwaukee in 2004, again graduating with honors.

Arleen is a member of many professional organizations, including Sigma Theta Tau, the American Academy of Nurse Practitioners, the American Society for Laser Medicine and Surgery, and the International Society of Plastic and Aesthetic Nurses (ISPAN).

Arleen worked at an aesthetic and vein center as a board-certified family nurse practitioner until 2011. She was responsible for the aesthetic side of the medical spa, including training and supervising staff and establishing standards of care for the practice. Arleen joined ReFresh in 2011 as a founding team member, working closely with our clinical director to establish policies, procedures, and training for our aesthetic providers.

Arleen has advanced training and experience with aesthetic injectables such as neuromodulators and dermal fillers, sclerotherapy, and the application of lasers and other light-based technology for skin rejuvenation and skincare. Her expertise is in the art and science of facial aesthetics. With Arleen’s confident yet warm and gentle approach, patients receive the best care coupled with superior outcomes in non-surgical aesthetics.

Rachael Mullen, MSN, RN, CNL

Rachael Mullen

“Confidence breeds beauty.” -Esteé Lauder

Meet Rachael, Aesthetic Nurse Specialist

Rachael Mullen has been practicing in the field of nursing since 2008. She earned her Post Bachelor’s Certificate of RN Completion as well as her Masters of Science in Nursing from Marquette University. Rachael is currently working towards receiving her Family Nurse Practitioner Certification from Graceland University, and will complete her program in 2022.

Her early clinical experience was primarily focused on cardiac nursing. Rachael also has experience as a clinical nurse manager in managing the long-term growth and daily operations of both administrative and clinical aspects of an imaging and vein and laser center. From 2011-2020, Rachael functioned as the Clinical Director of an outpatient plastic surgery clinic. For the past nine years, she practiced as the primary aesthetic nurse, offering aesthetic injectable treatments. She also triaged clinic patients and educated patients on progression of procedures, throughout their plastic surgical experience. Rachael’s aesthetic and plastic surgical nursing experience encompassing pre, intra, and postoperative care of patients has given her a strong foundation to what she now offers our patients at ReFresh Aesthetic Center.

Since 2014, Rachael has also been both an Allergan Medical Institute faculty member and Galderma Aesthetic Injector Network trainer, educating and training other medical aesthetic practitioners in the field of aesthetic medicine. Rachael holds advanced training and experience in the art and science of neuromodulators (BOTOX® Cosmetic/Dysport®)dermal fillerslasers, and clinical skincare. Rachael is also a member of the American Society for Plastic Surgical Nurses, the International Society of Plastic and Aesthetic Nurses and Sigma Theta Tau Nursing Honor Society.

Rachael is ReFresh’s newest clinical nursing team member, joining us in September of 2020. Because of her advanced skills and experience in both plastic and aesthetic nursing, she is a sought-after nurse injector by both women and men of all ages. With Rachael’s gentle approach, strong clinical and educational background, along with her aesthetic eye, she is able to deliver aesthetic outcomes and customized care they rely on from the ReFresh Aesthetic Center™ team of experts.

Kristin Burkert, PA-C, MPAS

Meet Kristin Burkert, Aesthetic Physician Assistant

Kristin attended the University of Wisconsin-Madison, earning a Bachelor of Science in Kinesiology. She then earned her Master’s in Physician Assistant Studies at Marquette University.

Prior to pursuing her passion for aesthetic medicine, Kristin spent over 11 years of her clinical career in orthopedic surgery, where she served as both a first assist during surgical procedures, as well as in the clinic setting. During this time, Kristin developed advanced skills such as suturing techniques and hyaluronic acid joint injections, which provided her with a strong foundation for the detailed work involved in nonsurgical aesthetic procedures.

Kristin has advanced training with aesthetic injectables such as neuromodulators and dermal fillers, QWO, and PRP injections.  With Kristin’s confident yet gentle approach, patients can feel assured knowing they will receive the same customized care and superior outcomes they have come to expect from ReFresh Aesthetic Center.

“Beauty is about enhancing the features you already have” 

– Kristin Burkert

Dawn Sagrillo, MSN, AGNP-C, CANS, CPSN

Dawn Sagrillo

“Beautiful skin is not a luxury, it is a necessity!”

Meet Dawn Sagrillo Nurse Practitioner, Certified Aesthetic Nurse Specialist, Founder and Clinical Director

Dawn Sagrillo’s synergy of aesthetic knowledge, more than 20 years of experience, and passion for her patients led her to growing ReFresh Aesthetic Center™ and its team to what it is today. Dawn believes a gentle touch, attention to detail, and aesthetic eye are essential to providing beautiful and natural results. Our practice name is rooted in her philosophy of care: simply giving women and men a ReFreshed look and feel. Understanding the blending of art and science in facial aesthetics has given Dawn a reputation that is known and respected locally and nationally by both her patients and peers.

Results matter; it’s all about who’s behind the needle and syringe!” 

– Dawn Sagrillo


Learn more about Our Founder, Dawn Sagrillo and Clinical Director, Kevin Robertson.

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Arrange a consultation in Milwaukee today. Contact ReFresh Aesthetic Center by calling 414-964-1111 or sending a message online

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