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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 (3)

The overall average patient rating of Dr. Mark Litchman is Good. Dr. Litchman has been reviewed by 8 patients who have provided 3 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.5
Promptness 4.1
Courteous Staff 3.7
Accurate Diagnosis 3.7
Bedside Manner 3.4
Spends Time with Me 3.4
Follows Up After Visit 3.0

Specialties & Research

Dr. Mark Litchman, MD is board certified in Allergy & Immunology.

  • He has special expertise in 13 areas:
  • Allergy
  • Angioedema
  • Asthma
  • Eczema
  • Food Allergy (Hypersensitivity)
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Nasal Allergy (Rhinitis)
  • Rheumatic Diseases
  • Rheumatoid Arthritis
  • Rheumatology
  • Sinus Infection (Sinusitis)
  • Systemic Lupus Erythematosus (SLE)
  • Vasculitis

Education & Awards

Dr. Litchman graduated from Rush Medical College, Chicago. He has 1 awards.

Castle Connolly Top Doctors: New York Metro Area™ (1999 - 2008, 2010 - 2015)


Dr. Litchman has 8 hospital affiliations:

  • Greenwich Hospital Association 
  • Waterbury Hospital Health Center 


  • Italian
  • Spanish

> > > > Dr. Mark Litchman, MD

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Additional Information
Dr. Mark D Litchman MD is a male Allergist & Immunologist, has 27 years of experience and practices in Allergy & Immunology and Allergy & Immunology.
Where does Dr. Mark D. Litchman practice?
Dr. Mark Litchman has 2 office locations.
Dr. Mark Litchman practices Allergy & Immunology and Allergy & Immunology near Norwalk, CT.
Additional practice locations include: Stamford, CT.
See Norwalk Allergists.