Photo of Andrew Mastro

Andrew Mastro, M.S., PA-C

Board-Certified Physician Assistant

Care Philosophy

I believe in the partnered journey, no matter how big or small the issue might be. It’s my responsibility to ensure all patients feel heard and cared for during that journey.

About Me

Andrew is a board-certified Physician Assistant (PA), completing his Master of Science in physician assistant studies at Rush University College of Health Sciences, Chicago. He completed his Bachelor of Science at Indiana University, graduating with honors. He is a guest lecturer and trains PA students at Rush University while serving in the same capacity at Northwestern University.

Andrew holds executive board positions as the acting Vice President of the Illinois Society of Dermatology Physician Assistants (ISDPA) and as a Rising Editor on the Editorial Board of the Journal of Dermatology Physician Assistants (JDPA). In addition to clinical dermatology, Andrew serves as both a consultant and speaker for numerous pharmaceutical entities, and a sub investigator in multiple active clinical trials. He joined DeNova research in 2019, focusing on advancing treatment within the inflammatory landscape. Andrew has a special interest in atopic dermatitis and psoriasis, though his practice spans medical, surgical, and cosmetic dermatology.

Andrew is an artist, triathlete, and avid live music fan outside the clinic. He also spends many of his “vacations” on hiking expeditions and adventure trips.


Indiana University, Bloomington, IN, Bachelor of Science

Rush University, Chicago, IL, Master of Science in Physician Assistant Studies


Vice President, Illinois Society of Dermatology Physician Assistants

Rising Editor, Editorial Board, Journal of Dermatology Physician Assistants

CME Conference Committee Member, Society of Dermatology Physician Assistants


Lecturer/Preceptor/Adjunct Faculty, Rush University College of Health Sciences, Chicago, IL

Lecturer/Preceptor, Northwestern University, Feinberg School of Medicine, Chicago, IL

Credentials/Board Certifications

National Commission on Certification of Physician Assistants (NCCPA)

American Academy of Physician Assistants (AAPA)

Society of Dermatology Physician Assistants (SDPA)

Illinois Society of Dermatology Physician Assistants (ISDPA)

Insurance Carriers Accepted

Most private insurance and Medicare are accepted.


  • Psoriasis
  • Biologic therapy
  • Atopic dermatitis
  • Acne
  • Surgical dermatology (excisions, etc.)

Procedures Performed

  • Excisions/skin cancers/cysts/pilar cysts/dysplastic nevi (precancerous moles)
  • Skin cancer screenings
  • Incision and drainage (I&D)
  • Electrodessication and curettage/curettage and cryotherapy
  • Cryotherapy, cryosurgery
  • Neurotoxin (botox, dysport) injections
  • Kybella injections (fat reduction)
  • Shave biopsies
  • Punch biopsies
  • Wart removal/destruction
  • Pulse dye laser
  • IPL (intense pulse light)
  • Cortisone injections
  • PRP (platelet rich plasma)
  • Photodynamic therapy (PDT or red light)
  • Chemical peels
  • Product counseling/cosmeceutical counseling

Conditions Treated

  • Acne
  • Rosacea
  • Hair loss/alopecia areata/androgenetic alopecia/central centrifugal cicatricial alopecia (CCCA), tinea capitis/lichen planopilaris
  • Psoriasis
  • Psoriatic arthritis
  • Atopic dermatitis (eczema)
  • Rashes
  • Seborrheic dermatitis
  • Sebaceous hyperplasia
  • Urticaria (hives)
  • Fungus/tinea pedis/tinea capitis/tinea cruris/tinea corporis/tinea versicolor
  • Nail infections (onychomycosis), nail trauma, nail dystrophy
  • Bacterial infections (folliculitis, cellulitis, erysipelas, abscesses, impetigo)
  • Viral infections/molluscum contagiosum/warts/verruca vulgaris/condyloma acuminata/herpes simplex virus (HSV), varicella zoster virus (VZV)/shingles
  • Lichen planus
  • Pityriasis rosea
  • Rashes
  • Lupus
  • Connective tissue disease
  • Morphea
  • Scleroderma
  • Warts, verrucae/condyloma acuminata
  • Sexually transmitted infections (STIs)
  • Skin cancer and skin cancer screening/melanoma/basal cell carcinoma/squamous cell carcinoma
  • Lipomas
  • Angiolipomas
  • Epidermal inclusion cysts
  • Pilar (tricholemmal) cysts
  • Nevi (moles)
  • Urticaria
  • Skin tags (acrochordons)
  • Poison ivy, oak, sumac
  • Angiomas
  • Hyperhidrosis (excessive sweating)
  • Keratosis pilaris
  • Xerosis (dry skin)
  • Allergic and irritant contact dermatitis
  • Razor burn (pseudofolliculitis)
  • Scars/hypertrophic scars/keloids
  • Enlarged pores
  • Milia
  • Molluscum contagiosum
  • Freckles/lentigines
  • Dermatoheliosis (sun damage) melasma
  • Rashes of pregnancy (pruritic urticarial papules and plaques of pregnancy or PuPPP)
  • Blistering rashes/bullous pemphigoid
  • Dermatitis herpetiformis
  • Spider veins
  • Seborrheic keratoses (SKs)
  • Drug rashes
  • Granuloma annulare
  • Autoimmunity
  • Actinic keratoses (pre-cancers)
  • Itching/pruritus
Book An Appointment