Browse Health
Dermatologist (skin)
26 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).

Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. Mark Welch is Good. Dr. Welch has been reviewed by 20 patients who have provided 8 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.5
Promptness 4.4
Courteous Staff 4.3
Accurate Diagnosis 4.6
Bedside Manner 4.1
Spends Time with Me 4.1
Follows Up After Visit 4.2

Specialties & Research

Dr. Mark Welch, MD is board certified in Dermatology.

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

Education & Awards

Dr. Welch graduated from New York Medical College, Valhalla. He has 2 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)
On-Time Doctor Award (2015)


Dr. Welch has 4 hospital affiliations:

  • Inova Alexandria Hospital 
  • Inova Fairfax Hospital 


  • German

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Additional Information
Dr. Mark Lawrence Welch MD is a male Dermatologist, has 26 years of experience and practices in Dermatology.
Where does Dr. Mark L. Welch practice?
Dr. Mark Welch has 2 office locations.
Dr. Mark Welch practices Dermatology near Bethesda, MD.
Additional practice locations include: Fairfax, VA.
See Bethesda Dermatologists.