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Edit this profileWhere to find Margaret B. Marshall, MD
- Boston location main office
75 Francis St, Boston, MA 02115 - Washington location
3800 Reservoir Rd NW, Washington, DC 20007 - Sarasota location
1540 S Tamiami Trl Ste 305, Sarasota, FL 34239
About Dr. Marshall
Margaret B. Marshall, MD practices thoracic surgery (cardiothoracic) in Boston, MA. Margaret is a 1991 graduate of Georgetown University School of Medicine. According to Medicare claims data, Margaret cared for 261 Medicare patients across 287 services. The services billed most often include new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and diagnostic exam of lung airway using an endoscope. The provider's National Provider Identifier (NPI) is 1295723724.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (617) 732-6824
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
75 FRANCIS ST
Boston, MA 02115
3800 Reservoir Rd NW
Washington, DC 20007
1540 S Tamiami Trl Ste 305
Sarasota, FL 34239
Conditions Commonly Evaluated or Treated
Within Thoracic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Airway
Chest tumors
Chest wall
Diaphragm
Esophagus
Esophagus and stomach
- Acid reflux
- Barrett's esophagus
- Esophageal cancer
- Esophageal pouch
- Esophagus tear
- Hiatal hernia
- Swallowing difficulties
Heart lining
Infection
Lung
Lung cancer
Lung conditions
Nerves
Nerves and blood vessels
Neuromuscular
Pleural disease
Sweating disorders
Trauma
Vascular
Procedures & services
Airway
Airway surgery
Chest tumors
Chest wall
Chest wall surgery
- Broken rib plating surgery
- Chest wall reconstruction
- Sunken chest repair
- Thoracic Outlet Decompression
Diagnostic tests
Diagnostics
Diaphragm
Diaphragm surgery
Emphysema
Esophagus
Esophagus surgery
- Acid reflux surgery
- Esophageal dilation
- Esophageal stent placement
- Esophagus removal surgery
- Hiatal hernia surgery
- Peroral endoscopic myotomy
Fluid drainage
Heart lining
Lung surgery
- Collapsed lung surgery
- Lung cancer surgery
- Lung lining scraping and cleaning
- Lung nodule removal
- Lung valve placement for emphysema
- Minimally invasive lung surgery
Nerves
Pleural disease
Robotic surgery
Surgical approach
Sweat surgery
Transplant
Trauma
Procedures Most Often Billed to Medicare
287 services · 261 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of lung airway using an endoscope | Procedure | 31622 |
42 | More than most peers in Thoracic Surgery (Cardiothoracic) |
| Removal of lymph nodes of chest cavity using an endoscope | Procedure | 32674 |
34 | More often than most peers in Thoracic Surgery (Cardiothoracic) |
| Removal of segment of lung tissue using an endoscope | Procedure | 32669 |
17 | As often as other peers in Thoracic Surgery (Cardiothoracic) |
| Exam of lung with removal of lung lobe using an endoscope | Procedure | 32663 |
14 | As often as other peers in Thoracic Surgery (Cardiothoracic) |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
86 | More than most peers in Thoracic Surgery (Cardiothoracic) |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
75 | More than most peers in Thoracic Surgery (Cardiothoracic) |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
19 | As often as other peers in Thoracic Surgery (Cardiothoracic) |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other thoracic surgery specialists in Boston 8
Same specialty, same city.
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1991 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of lung airway using an endoscope 8
Providers in MA who bill this service to Medicare most often.
Common questions
What is Dr. Marshall's specialty?
Dr. Marshall is a thoracic surgery (cardiothoracic) in Boston, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Marshall?
Dr. Marshall is listed at 75 Francis St, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Marshall?
The number on file is (617) 732-6824. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Marshall's NPI number?
Dr. Marshall's National Provider Identifier is 1295723724. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Marshall's medical education?
Dr. Marshall attended Georgetown University School of Medicine, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Marshall been practicing?
Dr. Marshall has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Marshall known for?
According to Medicare billing data, Dr. Marshall performs procedures including diagnostic exam of lung airway using an endoscope, removal of lymph nodes of chest cavity using an endoscope and removal of segment of lung tissue using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Marshall confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marshall. If this is you, claiming it is free.
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