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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 Mallek is Good. Dr. Mallek has been reviewed by 12 patients who have provided 3 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 3.0
Courteous Staff 3.4
Accurate Diagnosis 3.0
Bedside Manner 3.2
Spends Time with Me 3.2
Follows Up After Visit 2.5

Specialties & Research

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Mallek graduated from Georgetown University, Washington.


Dr. Mallek has 3 hospital affiliations:

  • Southern Nh Medical Center 
  • Parkland Medical Center 
  • St Joseph Hospital 

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Additional Information
Dr. Mark Lasak Mallek MD is a male Internist, has 34 years of experience and practices in Gastroenterology.
Where does Dr. Mark L. Mallek practice?
Dr. Mark Mallek has 1 office location.
Dr. Mark Mallek practices Gastroenterology near Nashua, NH.
See Nashua Gastroenterologists.