Margaret Marshall, MD
NPI 1295723724 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Boston, MA
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Marshall, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Boston, MA (NPI 1295723724).
Provider details
- NPI number
- 1295723724
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD034997 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
287 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 86 | $214 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 75 | $176 |
| Diagnostic Exam of Lung Airway Using an Endoscope31622 | 42 | $76 |
| Removal of Lymph Nodes of Chest Cavity Using an Endoscope32674 | 34 | $219 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 19 | $125 |
| Removal of Segment of Lung Tissue Using an Endoscope32669 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,574 across 24 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 3800 Reservoir Rd NwWashington, DC 20007-2113Phone: (202) 444-5022Fax: (877) 376-2421
- 1540 S Tamiami Trl Ste 305Sarasota, FL 34239-2921Phone: (941) 917-8791Fax: (941) 917-8793
Registry dates
- Enumerated
- 2005-10-10
- Last updated
- 2023-07-12
- Certified
- 2023-07-12
Frequently asked questions
- What is Margaret Marshall's NPI number?
- Margaret Marshall's National Provider Identifier (NPI) is 1295723724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Marshall's specialty?
- Margaret Marshall is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Marshall located?
- Margaret Marshall's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6106.
- What is Margaret Marshall's phone number?
- The practice phone number listed in the NPPES registry for Margaret Marshall is (617) 732-6824.
- Does Margaret Marshall accept Medicare?
- Margaret Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Marshall's NPI active?
- Yes — Margaret Marshall's NPI (1295723724) is active in the NPPES registry as of the last update on 2023-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.