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Edit this profileAt a glance
- 3800 Reservoir Rd Nw, Dept of Medicine, Washington, DC 20007
About Dr. Landsman
The NPI registry lists Marc J. Landsman, M.D. as a student in an organized health care education program, in Washington, DC. Marc trained at Georgetown University School of Medicine, graduating in 2013. Medicare claims data shows Marc provided 121 services to 118 patients. The services billed most often include moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit, removal of polyps or growths of large bowel using an endoscope with mechanical snare, and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. This provider record is associated with NPI 1407299621.
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
- (202) 444-8168
- Email not available
Practice Locations
3800 RESERVOIR RD NW DEPT OF MEDICINE
Washington, DC 20007
Procedures Most Often Billed to Medicare
121 services · 118 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
19 | As often as other peers in Student in training |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
17 | As often as other peers in Student in training |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
12 | Less often than most peers in Student in training |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
30 | Too few peers to compare |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
17 | As often as other peers in Student in training |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
14 | Less often than most peers in Student in training |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
12 | Less often than most peers in Student in training |
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.
Other medical trainees at this location 8
Same specialty, same street address — most likely the same department or group.
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 medical trainees in Washington 8
Same specialty, same city.
More connections — 17 related providers in 3 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2013 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 1
Providers in DC who bill this service to Medicare most often.
Common questions
What kind of doctor is Marc J. Landsman?
Marc J. Landsman is a medical trainee in Washington, DC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.
NPI registry
What is Marc J. Landsman's address?
Marc J. Landsman is listed at 3800 Reservoir Rd Nw Dept of Medicine, Washington, DC 20007. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Marc J. Landsman?
The number on file is (202) 444-8168. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marc J. Landsman?
Marc J. Landsman's National Provider Identifier is 1407299621. 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
Where did Marc J. Landsman train?
Marc J. Landsman attended Georgetown University School of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marc J. Landsman have?
Marc J. Landsman has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What procedures does Marc J. Landsman perform?
According to Medicare billing data, Marc J. Landsman performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Marc J. Landsman's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marc J. Landsman. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.