we love what we do and our clients do too.

LexRx is a Nurse Practitioner owned and operated aesthetic injectables practice. Our practitioners are Board-Certified NPs with clinical experience from some of the country’s best hospitals. We utilize an evidence-based approach, while prioritizing safety and results.

we love what we do and our clients do too.

LexRx is a Nurse Practitioner owned and operated aesthetic injectables practice. Our practitioners are Board-Certified NPs with clinical experience from some of the country’s best hospitals. We utilize an evidence-based approach, while prioritizing safety and results.

Meet the Team

Alexa Nicholls Costa
Co-founder and CEO
Alexa blends her extensive background in science with a passion for art to deliver impeccable results for her clients. Many find comfort in knowing that Alexa has expertise not only in neurotoxins/dermal fillers, but also in emergency medicine. continue reading
Alexa Nicholls Costa
NP
Co-founder and CEO

Alexa blends her extensive background in science with a passion for art to deliver impeccable results for her clients. Many find comfort in knowing that Alexa has expertise not only in neurotoxins/dermal fillers, but also in emergency medicine.

Alexa is a Board-Certified Nurse Practitioner and one of the leading ladies of LexRx. She has clinical and research experience in plastic surgery at Massachusetts General Hospital. While at MGH, Alexa trained alongside the Division Chief and Lead Nurse Practitioner. In addition to many professional and academic publications, Alexa was also the recipient of the Masters of Nursing Excellence Award at Regis College—an honor awarded to one candidate each year. 
Alexa has served as a Nurse Practitioner Fellow in the prestigious Emergency Medicine Fellowship Program (EMPED) through Brown Medical School. Following completion of her fellowship, Alexa began working in the Emergency Department at Massachusetts General Hospital.

As co-founder of LexRx and Inject With Lex, Alexa was the Course Director at Northeastern University for the nation’s first University-hosted, injectables training program. A Key Opinion Leader in the industry, Alexa has been an invited speaker at conferences such as the American MedSpa Association’s MedSpa Show, The Aesthetic Show, Innova@Tufts Conference, and the Nurse Practitioner Entrepreneurship Conference.

Education: Boston University (BS Health Science / PreMedicine), Regis College (BSN / MSN Family Nurse Practitioner)

Alexandra Rogers
Co-founder and COO
Alexandra approaches her work with creativity and diligence. Urgent/emergency medicine remains a passion of hers, but she is excited by the ability to empower and promote well-being in her clients through aesthetic medicine. continue reading
Alexandra Rogers
NP
Co-founder and COO

Alexandra approaches her work with creativity and diligence. Urgent/emergency medicine remains a passion of hers, but she is excited by the ability to empower and promote well-being in her clients through aesthetic medicine.

Alexandra is a Board-Certified Nurse Practitioner and one of the leading ladies of LexRx. She worked at Harvard Vanguard Medical Associates in the Adult and Pediatric Urgent Care Center, and then transitioned to managing her own urgent care clinic. In these roles, Alexandra was exposed to many complex medical problems and gained immense clinical insight. She received formal certification through AMET for injectables. Her strong foundation in urgent/emergency medicine has evolved into a flourishing career as a Nurse Practitioner and trusted provider.

As co-founder LexRx and Inject With Lex, Alexandra was the Lead Instructor at Northeastern University for the nation’s first University-hosted, injectables training program. As a Key Opinion Leader in the industry, Alexandra has been an invited speaker at industry conferences, including the American MedSpa Association’s MedSpa Show, The Aesthetic Show, Innova@Tufts, and the Nurse Practitioner Entrepreneurship Conference.

Education: Emmanuel College (BS Biostatistics, Magna cum laude), Regis College (BSN/MSN Family Nurse Practitioner)

Ariana Moccia Haddad
Ariana Moccia Haddad
NP
Chief Growth Officer

Trained and certified by LexRx, Ariana continually works to ensure each client achieves their desired result.

As a board-certified nurse practitioner, Ariana brings over a decade of experience in medicine. She is LexRx’s Chief Growth Officer, sharing her passion for business development, brand awareness, and excellence in clinical practice. Ariana maintains practice privileges at Boston Children’s Hospital in the Division of Sports Medicine / Orthopedics.

Education: Boston College (BSN/MSN Pediatric Nurse Practitioner)

Julia Cambria Shaker
Julia Cambria Shaker
NP

Julia approaches her work with thoughtfulness and care and is an integral member of the LexRx team.

Julia is a board-certified Family Nurse Practitioner, with her Master of Science in Nursing from Boston College Connell School of Nursing. She began her career at Massachusetts General Hospital in the Emergency Department Observation Unit and later transitioned to Massachusetts Eye and Ear Infirmary as the Hospital Medicine NP. Julia was trained in injectables at LexRx.

Education: College of the Holy Cross (BS Psychology), Boston College (MSN, Family Nurse Practitioner)

Caitlin Gaffey
Caitlin Gaffey
NP

Caitlin provides impeccable attention to detail and surgical finesse to all her injectables clients.

Caitlin is a Board-Certified Nurse Practitioner. Starting with a Bachelor’s degree in Neuroscience, Caitlin received her Bachelor and Master of Science degrees in Nursing at Simmons College. Her clinical career began at Beth Israel Deaconess Medical Center, where she trained first in neuro-critical care, and then in neurosurgery. She now balances her time between the operating room at BIDMC and LexRx. Caitlin was trained and certified by Inject With Lex.

Education: Trinity College (BS Neuroscience), Simmons College (BSN/MSN, Family Nurse Practitioner)

Leanne Mattaliano
Leanne Mattaliano
RN, NP-S
Directing Nurse for Lex by LexRx

With attention to detail and caring disposition, Leanne has a passion for enhancing her clients’ natural beauty.

Leanne is a LexRx injector as well as the Directing Nurse at Lex by LexRx. She has both clinical and aesthetic nursing experience, graduating from the University of Connecticut with a Bachelor of Science in Nursing, and is on track to complete her MSN for Family Nurse Practitioner in December 2022. Leanne began her nursing career caring for complex medical patients in Intermediate Medicine at Boston’s nationally ranked Brigham and Women’s Hospital. She has developed her aesthetic nursing skills at LexRx, and has been trained and certified in neurotoxin and dermal filler injectables through Inject with Lex; Leanne is also certified in medical-grade chemical peels and dermaplaning.

Education: University of Connecticut (BSN), Sacred Heart University (MSN, Family Nurse Practitioner, December 2022)

Danielle Rogers
Danielle Rogers
NP

With strong attention to detail, Danielle is dedicated to helping clients achieve their beauty goals and increase their confidence by conservatively enhancing clients’ natural beauty.

Danielle is a Board-Certified Family Nurse Practitioner. She received both her Bachelor of Science and Master of Science degrees in Nursing from MGH Institute of Health Professions. While obtaining her Nurse Practitioner degree full-time, she also worked as an RN providing in-home care for newborns, including high-risk and premature babies. Danielle now works at the Community Health Center in Boston, serving populations disproportionately impacted by inequity. Danielle has a long-held interest in health, beauty, and skincare and was drawn to injectables because it combines her passion for science with her love of art and aesthetics. She was trained and certified by Inject With Lex and the Injectables Training Program at Northeastern University.

Education: Roger Williams University (BS Communications / PR / Marketing), MGH Institute of Health Professions (BSN/MSN Family Nurse Practitioner)

Chloe Banks
Chloe Banks
NP
Chief Compliance Officer

Chloe is trained and certified by Inject With Lex, and is dedicated to making her clients feel comfortable, knowledgeable and confident in their care. With a focus on safety and highlighting her clients’ natural beauty, Chloe delivers individualized treatment plans with the utmost attention to detail.

Chloe is a Board-Certified Nurse Practitioner at LexRx. She obtained her first Bachelor of Science Degree from Northeastern University in Health Science with a focus in Health Policy, and completed her Master’s Degree from Drexel University. She brings a cumulative decade of clinical experience in both critical and outpatient care settings, and in addition to LexRx, she is credentialed at Boston Children’s Hospital, the nation’s highest ranked pediatric hospital.

Education: Northeastern University (BS Health Science), MGH Institute of Health Professions (BS Nursing), Drexel University (MSN Pediatric Nurse Practitioner)

Alexa Santilli
Alexa Santilli
NP

Alexa is passionate about helping her clients gain confidence and empowerment, and strives to enhance her clients’ natural beauty with a conservative approach.

Alexa is a Board Certified Nurse Practitioner who brings a decade of acute care experience from top rated Boston hospitals. She worked as a bedside nurse in transplant surgery at UMass Memorial Medical Center before transitioning to Brigham and Women’s Hospital on an intermediate care unit. Alexa attended University of Massachusetts and graduated with her Master’s in Science Degree in Nursing. She became board certified as a Family Nurse Practitioner in 2018. She also works as an inpatient NP at the Massachusetts General Hospital Cancer Center, in Hematology Oncology with a focus on hematologic malignancies and cellular therapies. Alexa appreciates the balance of her inpatient clinical practice with her aesthetic injectables practice, where she is able to combine her passion for health and beauty with science.

Education: University of Vermont (BS Nursing), University of Massachusetts (MSN Family Nurse Practitioner)

Marielle Petrilli
Marielle Petrilli
NP
Skincare Specialist

Marielle loves helping her aesthetic clients achieve the most natural and refreshed version of themselves.

Marielle is a Board Certified Family Nurse Practitioner. She has been working in adult medicine/primary care for five years, while also working in injectables and aesthetic medicine. Prior to joining the team at LexRx, Marielle worked in concierge injectables. She has a deep passion for skincare, injectables such as neurotoxin and dermal filler treatments, and cosmetic needs.

Education: Stonehill College (BS Health Sciences), Simmons College (MSN Nursing)

Jill Fitzsimmons
Jill Fitzsimmons
RN, NP-S

Jill enjoys the specialization of the care that goes into our skin, and she loves helping clients achieve their skincare goals.

Jill is one of our wonderful LexRx injectors as well as Head Nurse Coordinators. Her administrative understanding, clinical expertise, and passion for aesthetics is unmatched. Her friendly attitude and conscientious nature welcome clients into an environment of self-care and wellness where confidence is the goal. Jill also has extensive clinical experience currently working on an inpatient oncology unit at Mass General Hospital in Boston. She looks forward to taking care of your skin and helping you feel like your best self.

Education: Providence College (BS, Health Policy), MGHIPH (BSN, Nursing), Sacred Heart University (NP-S)

Emily McGowen
Emily McGowen
RN

Emily loves the junction of where health meets beauty, and is drawn to the injectables space by the blending of science and innovation with attention to stunning detail that this ever-growing field provides.

Emily McGowan is a Board-Certified Registered Nurse and is very passionate about women and children’s health, with a devotion to empowering women to feel amazing about themselves in the skin they’re in. After years of perfecting pristine skincare, Emily possesses a wealth of knowledge and fiery passion for all things skin and is the expert for tailoring personalized routines that will have anyone glowing from the inside out and ready to take on the world.

Education: University of Massachusetts Amherst (BS Neuroscience, minor in Spanish and Biomedical and Health Interventions, BSN, Nursing)

Carolyn Murray
Carolyn Murray
RN

Carolyn has developed her aesthetic nursing skills at LexRx, and is passionate about medical-grade skincare and promoting self-confidence in her clients.

Carolyn is one of our Co-Lead Nurse Coordinators and Lex by LexRx Nurses. She intertwines clinical and aesthetic nursing experiences as a part of our amazing team. She enhances her clients’ natural beauty through services such as dermaplaning, chemical peels and prescription grade skincare regimens. With her attention to detail and caring disposition, she provides the self-care every client needs and deserves. Carolyn also maintains practice privileges at Boston Children’s Hospital Surgical Unit where she cares for pediatric patients with complex health care needs.

Education: Elon University (BS Psychology), MGH IHP (BSN Nursing)

Audrey Snell
Audrey Snell
RN

Audrey is determined to give her clients the best results and continues to train and advance her skills with new techniques in the industry.

Audrey Snell is a Registered Nurse who specializes in injectables and skin care treatments at LexRx. She has clinical experience in the hospital as well as extensive training in injectables. Audrey began her nursing career as a home care nurse where she grew up on Nantucket Island. She quickly realized her passion for skincare and has been an integral part of the team at LexRx ever since. Her friendly personality allows clients to feel comfortable and at ease in her care, and her passion for injectables and skin care has allowed her to invest fully in the field.

Education: University of New Hampshire (BSN Nursing)

Gabi Gigliotti
Gabi Gigliotti
RN, NP-S

Gabi has developed her aesthetic nursing skills in chemical peels and dermaplaning and has been trained and certified through Inject with Lex.

Gabi Gigliotti is a Registered Nurse with experience in the Cardiothoracic Stepdown Unit at the Cleveland Clinic in Ohio. Gabi first discovered LexRx as a client and was immediately drawn to the welcoming, energetic and passionate environment. She plans to use her knowledge as an NP to further educate her clients and help them to embrace their inner confidence and beauty at LexRx.

Education: University of Pittsburgh (BSN Nursing), Carlow University (NP-S)

Maggie Williams
Maggie Williams
RN

At LexRx, Maggie has been able to combine her passion for skincare with her dedication to providing excellent patient care to help her clients feel their best.

Maggie Bruno is a registered nurse and one of our Nurse Coordinators at LexRx specializing in medical-grade chemical peels and dermaplaning. Maggie also works on a medical floor at Boston Children’s Hospital.

Education: Loyola University (Biology, BS; Psychology, BS), MCPHS (BSN, Nursing; Health Science, MS)

Gillian Pfaff
Gillian Pfaff
RN, NP-S

Gillian’s interests in the health and beauty industries have fueled her passion for aesthetic medicine.

Gillian has both clinical and aesthetic nursing experience and has honed her aesthetic nursing skills through training at LexRx. Prior to working at LexRx, Gillian acquired valuable clinical experience in pediatric nursing while serving as a nurse intern for three summers in Uganda. She is dedicated to producing naturally beautiful results for her clients through both medical grade skincare and injectables. Gillian enjoys crafting individualized treatment plans that instill confidence in her clients.

Education: Simmons University (BS, Nursing), Georgetown University (NP-S)

Ashley Denmark
Ashley Denmark
RN

Ashley Denmark is a licensed Registered Nurse. Here at LexRx she is one our Nurse Coordinator’s offering medical grade chemical peels and dermaplaning. She obtained her first bachelor’s degree from Quinnipiac University, majoring in Psychology. After graduation, Ashley began her nursing journey at MGH Institute of Health Professions and obtained her Bachelor of Science Degree in Nursing. Throughout nursing school, Ashley gained clinical experience at MGH as well as Salem Hospital where she had her preceptorship in labor and delivery. Ashley has always had a passion for skincare and facial aesthetics. Upon graduating from MGH institute of health professions Ashley was determined to find a practice that would allow her to combine her skills acquired in nursing school with her love of health and beauty. Ashley looks forward to continuing her education and training under the skilled providers at LexRx. Ashley is dedicated to bringing out the upmost confidence in her clients!

Careers

We’re looking for talented NPs to join our team!