Margaret Blair Marshall, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Boston, MA
Margaret Blair Marshall, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Boston, Massachusetts, and NPI 1295723724, issued on Oct 10, 2005. Check the license (Massachusetts 81394, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Margaret Blair Marshall
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- 81394 MA
MD034997 DC
ME163715 FL
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-6824
- Enumerated
- Oct 10, 2005
- Record last updated
- Jul 12, 2023
- Medicare enrollment
- Enrolled (PECOS I20230725003744); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1991
- Entity
- Type 1 · individual
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
- Emily Aaronson, M.D.Emergency Medicine Physician1962791558
- Sarah Abbett, M.D.Anesthesiology Physician1902097736
- Christine Abbott, NPAdult Health Nurse Practitioner1851471940
- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Margaret Blair Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 81394Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $8,573.50
24 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Smh Physician Services IncSarasota, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Massachusetts
There are 228 thoracic surgery (cardiothoracic vascular surgery) physician records in Massachusetts.
Other thoracic surgery (cardiothoracic vascular surgery) physician records in Massachusetts
- Ibrahim Abdelmoneim, MDBoston, MA1447196845
- Mohamed Abdelrahman, MDBoston, MA1558050591
- Alfred Adegboyegun, MDSpringfield, MA1205953957
- Arvind Agnihotri, MDBrighton, MA1528058625
- Nathan Airhart, MDSpringfield, MA1851611008
- Cary Akins, MDBoston, MA1447231899
- James Allan, MDBoston, MA1699765859
- Timothy Anderson, MDNorwood, MA1275527806
- Sary Aranki, MDBoston, MA1881639102
- Hugh Auchincloss, M.D.Boston, MA1003076522
Common questions
What is Margaret Blair Marshall, MD's NPI number?
Margaret Blair Marshall, MD's National Provider Identifier (NPI) is 1295723724, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Blair Marshall, MD located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-6824. Providers update this record themselves, so call before visiting.
How can I verify Margaret Blair Marshall, MD's license?
NPPES lists Massachusetts license number 81394, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.