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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. Henry Vaillant:

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Specialties & Research

Dr. Henry Vaillant, MD is board certified in Internal Medicine.

Education & Awards

Dr. Vaillant graduated from Harvard University , Boston.


Dr. Vaillant has 1 hospital affiliations:

  • Emerson Hospital 


  • Spanish
  • Hindi

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Additional Information
Dr. Henry Winchester Vaillant MD is a male Internist, has 50 years of experience and practices in Internal Medicine.
Where does Dr. Henry W. Vaillant practice?
Dr. Henry Vaillant has 2 office locations.
Dr. Henry Vaillant practices Internal Medicine near Acton, MA.
Additional practice locations include: Concord, MA.
See Acton Internists.