Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Adam Crystal, MD, PHD

Individual provider Internal Medicine Physician · NPI 1649307075

Adam Crystal, MD, PHD is an Internal Medicine Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2007.

Licensed in
MA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Partly verified

Some contact details are missing from the federal record.

Massachusetts General Hospital 55 Fruit St
Boston, MA 02114
Phone: (617) 726-2066
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Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence L-229155 (MA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 238214 (MA)

Record details

NPI number1649307075
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedFebruary 27, 2007
Last updated in NPPESSeptember 7, 2013
Mailing address55 Fruit St, Boston, MA 02114-2621

Other providers in Boston