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

Margaret Blair Marshall, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1295723724

Margaret Blair Marshall, MD is a Thoracic Surgery in Boston, Massachusetts. Graduated from Georgetown University School of Medicine in 1991, 35 years ago. Practices with Smh Physician Services Inc, a 774-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in District of Columbia, Florida and Massachusetts.

Years since qualifying
35
Trained at
Georgetown University School of Medicine
Licensed in
DC, FL, MA
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

75 Francis St
Boston, MA 02115-6106
Phone: (617) 732-6824
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 3800 Reservoir Rd Nw, Washington, DC 20007-2113 — (202) 444-5022
  • 1540 S Tamiami Trl Ste 305, Sarasota, FL 34239-2921 — (941) 917-8791

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 81394 (MA)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence MD034997 (DC)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence ME163715 (FL)

Record details

NPI number1295723724
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 10, 2005
Last updated in NPPESJuly 12, 2023
Certification dateJuly 12, 2023

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Smh Physician Services Inc — 774 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Boston