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

Individual provider Radiation Oncology Physician · NPI 1073994489

Dr. William L Hwang, MD, PHD is a Radiation Oncology Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2015.

Licensed in
MA
In the registry since
2015
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) 726-5820
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Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 274104 (MA)

Record details

NPI number1073994489
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 11, 2015
Last updated in NPPESJune 4, 2020
Certification dateJune 4, 2020

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