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

Margaret B Allison, MD, PHD

Individual provider Internal Medicine Physician · NPI 1114447398

Margaret B Allison, MD, PHD is a Critical Care (Intensivists) in Boston, Massachusetts. Graduated from University of Michigan Medical School in 2017, 9 years ago. Practices with Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc, a 1,676-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
9
Trained at
University of Michigan Medical School
Licensed in
MA
In the registry since
2017
Specialties on file
3
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) 643-0596
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 271186 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 271186 (MA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 271186 (MA)

Record details

NPI number1114447398
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 20, 2017
Last updated in NPPESApril 10, 2023
Certification dateApril 10, 2023
Mailing addressMassachusetts General Hospital, 55 Fruit St., Boston, MA 02114

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2017 (9 years in practice)
Group practice Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc — 1676 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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