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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. Derek Frederickson is Excellent. Dr. Frederickson has been reviewed by 19 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 4.7
Courteous Staff 4.9
Accurate Diagnosis 4.8
Bedside Manner 4.9
Spends Time with Me 4.9
Follows Up After Visit 4.8

Specialties & Research

Dr. Derek Frederickson, MD is board certified in Internal Medicine and Gastroenterology.

  • 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. Frederickson graduated from Virginia Commonwealth University, Richmond. He has 4 awards.

Castle Connolly's Top Doctors™ (2013)
Patients' Choice Award (2008 - 2009, 2011 - 2012, 2014)
Compassionate Doctor Recognition (2011 - 2012, 2014)
On-Time Doctor Award (2014)


Dr. Frederickson has 8 hospital affiliations:

  • Tufts Medical Center 
  • Caritas Norwood Hospital 

> > > > Dr. Derek Frederickson, MD

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Additional Information
Dr. Derek Frederickson MD is a male Internist, has 9 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Derek Frederickson practice?
Dr. Derek Frederickson has 7 office locations.
Dr. Derek Frederickson practices Internal Medicine and Gastroenterology near Dedham, MA.
Additional practice locations include: Foxboro, MA and Wrentham, MA.
See Dedham Internists and Dedham Gastroenterologists.