Mary Dealy,
Nurse Practitioner

Mary Dealy, is a board certified Nurse Practitioner with over 25 years of clinical expertise from some of Massachusetts’ most prestigious hospitals. She launched BeautoxEtc, a cosmetic dermatology practice now thriving in Medfield, MA, in 2017 – after rigorous aesthetic training in Boston and London.

Mary’s philosophy is one of ongoing learning and training to bring her clients the best in cosmetic artistry and facial treatments using injectables paired with a prescriptive science-based skin care line with a long history of proven results.

Availability and personal connection are the cornerstones of Mary’s practice. Her goal is to get to know each of her clients personally and nurture that professional relationship. Every client is unique, and that uniqueness is assimilated into treatment. Practicing in Medfield since 2018, BeautoxEtc has been voted Best Med Spa for two years in a row.

We focus on everyday, simple beauty. People will notice not that you had something done, but how beautiful you look!

Smiling beautiful mature lady looking up.


BeautoxEtc is a Nurse Practitioner owned and operated boutique cosmetic dermatology practice located in Medfield, MA, offering neuromodulators (Dysport, Xeomin), dermal fillers, ZO® Skin Health medical grade skin care products and peels, and microneedling.

BeautoxEtc. is committed to helping you look and feel your personal best by providing the highest level of medical grade cosmetic procedures. Each of our services is carefully designed to fit your unique needs, and our highly experienced staff is ready to support you every step of the way.


Appointments by appointment only Tuesday – Saturday

Put Your Best Face Forward

  • Convenient location
  • Appointments can be scheduled Monday – Saturday
  • Evening appointments available
  • Clean, professional and relaxing office
  • Personalized treatment plans
  • Specializing in non-surgical treatments for the face
  • All treatments administered by a Board-Certified Nurse Practioner
  • Natural results
Closeup shot of a mature woman sitting indoors.

Success Stories

It was my first time getting Botox so I was a little nervous. Mary took the time to listen to me and ask questions. With a genuine and caring attitude she gave me realistic expectations on what to expect. Her attention to detail is second to none. I am really happy with the results!

Jialing O.

“I went to Mary looking to enhance my lips so I didn’t have to over line my lips as much when I wear lipstick. I LOVE the end result! My lips look naturally full. Her space was bright and clean! The process didn’t take long at all and was relatively painless! I will definitely be going back in the future!”

Julia M, Foxboro, MA

“My experience with Mary Dealy was amazing. She is very professional and took her time to listen and answer all my questions and concerns. She was very gentle and reassuring during the procedure. Her ultimate goal is to make you feel beautiful. I am very happy with the results and I highly recommend her.”

Cheryl, Walpole, MA

I highly recommend BeautoxEtc. Mary Dealy is an experienced professional that delivers exceptional results. She has a calming and reassuring manner that puts you at ease.

Maggie B.

I just got Botox for the first time and I love the results! I had my forehead done and within days it looked so much smoother. Mary took the time to listen to what I was looking to achieve and to answer my questions. The injections were pretty painless and I had no side effects. I will definitely be a repeat customer and would highly recommend Beautox to anyone.

Sarah S.

I am a yoga loving kombucha drinking 50 something year old and decided to try Botox treatment. I am thrilled with results! My face is brighter and my eyes seemed to just pop open. I look like a smoother and fresher version of myself. Mary is so skilled and professional – she knew exactly what I needed. I didn’t experience any pain or bruising. My only regret is that I didn’t try it sooner! I will definitely be back.

Beth W.

I was very happy with my recent botox injections. I have to admit I was very nervous about it being uncomfortable but was surprisingly painless. I just did my forehead area and went right back to work. She made me feel very comfortable and love the results!

Donna M.