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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Joan Sisto is Good. Dr. Sisto has been reviewed by 16 patients who have provided 4 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.3
Courteous Staff 4.1
Accurate Diagnosis 3.6
Bedside Manner 3.9
Spends Time with Me 3.6
Follows Up After Visit 3.6

Specialties & Research

Dr. Joan Sisto, MD is board certified in Dermatology.

  • She has special expertise in 5 areas:
  • Acne (Acne Vulgaris)
  • Acne Rosacea
  • Melanoma
  • Psoriasis
  • Skin Cancer

Education & Awards

Dr. Sisto graduated from Yeshiva University, Bronx. She has 2 awards.

Patients' Choice Award (2015)
On-Time Doctor Award (2015)


Dr. Sisto has 3 hospital affiliations:

  • Exeter Hospital Inc 
  • Portsmouth Regional Hospital 
  • York Hospital 


  • English

> > > > Dr. Joan Sisto, MD

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Additional Information
Dr. Joan S Sisto MD is a female Dermatologist, has 17 years of experience and practices in Dermatology.
Where does Dr. Joan S. Sisto practice?
Dr. Joan Sisto has 2 office locations.
Dr. Joan Sisto practices Dermatology near York, ME.
Additional practice locations include: Portsmouth, NH.
See York Dermatologists.