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Dr. William Andersen, MD
Dermatologist (skin), Pathologist
25 years of experience
Accepting new patients
Video profile
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).

Learn more about Dr. William Andersen:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. William Andersen is Good. Dr. Andersen has been reviewed by 18 patients who have provided 4 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.4
Promptness 4.7
Courteous Staff 4.1
Accurate Diagnosis 3.8
Bedside Manner 3.6
Spends Time with Me 3.7
Follows Up After Visit 3.9

Specialties & Research

Dr. William Andersen, MD is board certified in Dermatology, Anatomic Pathology, and Pathology - Dermatopathology.

  • He has special expertise in 9 areas:
  • Acne (Acne Vulgaris)
  • Acne Rosacea
  • Cosmetic Surgery (Aesthetic Procedures)
  • Dermal Fillers
  • Melanoma
  • Psoriasis
  • Skin Cancer
  • Skin Rash (Acrodermatitis)

Education & Awards

Dr. Andersen graduated from Columbia University, New York.


Dr. Andersen has 2 hospital affiliations:

  • Lancaster General Hospital 
  • Lancaster General, Women & Babies Hosp. 


  • Spanish
  • English
  • French

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Additional Information
Dr. William Karl Andersen MD is a male Dermatologist, has 25 years of experience and practices in Dermatology, Dermatopathology, Anatomic Pathology, and Dermatopathology.
Where does Dr. William K. Andersen practice?
Dr. William Andersen has 1 office location.
Dr. William Andersen practices Dermatology, Dermatopathology, Anatomic Pathology, and Dermatopathology near Lancaster, PA.
See Lancaster Dermatologists and Lancaster Pathologists.