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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).

Learn more about Dr. Gretchen Twork:

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Specialties & Research

Dr. Gretchen Twork, MD is board certified in Internal Medicine.

Education & Awards

Dr. Twork graduated from University of Wisconsin at Madison.


Dr. Twork has 2 hospital affiliations:

  • Mary Hitchcock Memorial Hospital 
  • Hospital Medicine 


  • English

> > > > Dr. Gretchen Twork, MD

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Additional Information
Dr. Gretchen Elizabeth Twork MD is a female Internist, has 9 years of experience and practices in Internal Medicine.
Where does Dr. Gretchen E. Twork practice?
Dr. Gretchen Twork has 1 office location.
Dr. Gretchen Twork practices Internal Medicine near Lebanon, NH.
See Lebanon Internists.