Our Clinical Staff

Michael Saruk, MD, FAAD
Chief Medical Officer

Michael Saruk MD FAAD Chief Medical Officer
  • Diplomate, American Board of Dermatology
  • Diplomate, American Board of Pathology - (anatomic pathology)
  • Diplomate American Boards of Dermatology and Pathology - (dermatopathology)
  • Clinical Professor of Dermatology at the University of Pennsylvania in the Associated Faculty of the Perelman School of Medicine

Read more about Dr. Saruk


Physician Associates

You may wish to learn more about The Role of the Physician Assistant/Associate in Our Practice.

Tracy Marchetta, PA-C                                   

After knowing her professionally for over a decade, we are delighted to welcome Ms.Tracy Marchetta to the practice. Tracy has been a clinician in dermatologic medicine for eighteeen years and developed a devoted following in her former home state of New Jersey.  When she knew that she would be relocating to Delaware, she got in touch, and we didn't hesitate to ask her to join us. 

Tracy is a graduate of the University of Medicine and Dentistry of New Jersey which was among the first  top PA programs in the U.S. She later became a clinical lecturer in dermatology within the Physician Assistant Program at Arcadia University
As a new PA,  Tracy initially pursued her chosen career in the field of invasive vascular surgery.(iwhich, she tells us was great preparation for dermatologic surgery) and later, worked in primary care serving disadvantaged people in Philadlephia.  Eventually, she found her true calling in dermatology and has never looked back.. 

Ms. Marchetta is a wife and a mother who enjoys knitting, reading, and is skilled at home improvements. She also enjoys travel. More recent adventures have taken her to South Africa, Sicily, and France.  Tracy tells us that she knew that she wanted to be a physician assistant from the age of thirteen.  We are so very happy that she has chosen to follow her dreams to Delaware Valley Dermatology Group. 


Ashley Senss, MMS, PA-C         

Ashley Senss, MMS, PA-C, is a certified physician assistant specializing in dermatology. She completed her undergraduate education at Saint Joseph’s University, earning a Bachelor of Science in Biology with a minor in Theatre Studies. She then worked as a medical assistant at a dermatology practice near her hometown for several years prior to attending graduate school at Salus University in Elkins Park, PA. Ashley graduated Summa Cum Laude with a Master of Medical Science in Physician Assistant Studies. Upon graduation, she was inducted into Pi Alpha, the National Honor Society for Physician Assistants and was awarded the Alumni Association Award for Outstanding Scholarship. Her previous experience in dermatology prior to her PA program and during clinical rotations meant she naturally gravitated toward dermatology as her chosen calling in healthcare.


Ashley is a current member of the Society of Dermatology Physician Assistants, the American Academy of Physician Assistants, and the Delaware Academy of Physician Assistants .


In her free time, Ashley enjoys spending time with her family and listening to showtunes given her other true passion is live theatre. You might even find her working backstage at a local community theatre in the future. Ashley is recently married and a new home owner. She is looking forward to starting this next adventure in both her career and in life!     


|| Continuum of Care™Aesthetic Services Director:

    Raquel Valdez, RN, BSN

Raquel Valdez has been an integral part of Delaware Valley Dermatology Group sinceRaquel Valdez RN BSN Licensed Registered Nurse 2002.  A graduate of the baccalaureate nursing program at West Chester University, over the years she has seen and done it all in dermatology.  She particularly enjoys working in the field of aesthetics.  For the past decade, Raquel has been honing her injecting skills and developing her eye for achieving a look that is both natural looking and rejuvenating.  It is an art.  With an array of fillers and wrinkle relaxers at her disposal, you can trust Raquel to work with you to achieve a look you will love.  Her approach is conservative and based on your comfort level.  You will never be over-filled and when it comes to wrinkle relaxers, just know that her motto is "Fresh Not Frozen".  

As Dr. Saruk always says, "Raquel can do everything.  She's smart, competent and caring and we're lucky to have her."   She's also a pleasure to have around.   Ms. Valdez has embraced the "Continuum of Care™" philosophy from the start and is delighted to be able to offer patients her expertise in both medical and aesthetic matters.  She is licensed in both Delaware and the Commonwealth of Pennsylvania.