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Edit this profileAt a glance
- Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
About Dr. Marsh
Shawn M. Marsh, DMD is a healthcare provider in Boston, MA specializing in oral & maxillofacial surgery. Shawn trained at Tufts University School of Dental Medicine, graduating in 2013. According to Medicare claims data, Shawn cared for 50 Medicare patients across 52 services. The services billed most often include new patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more and established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more. This provider record is associated with NPI 1699938274.
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) 726-8222
- Email not available
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Practice Locations
MASSACHUSETTS GENERAL HOSPITAL 55 FRUIT STREET
Boston, MA 02114
Procedures Most Often Billed to Medicare
52 services · 50 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more | Office visit | 99202 |
37 | More often than most peers in Oral & Maxillofacial Surgery |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
15 | Less often than most peers in Oral & Maxillofacial Surgery |
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 oral surgeons in Boston 8
Same specialty, same city.
Trained at Tufts University School of Dental Medicine 2
Other providers in the same specialty who trained at the same institution.
More connections — 6 related providers in 1 group
Class of 2013 at Tufts University School of Dental Medicine 6
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Marsh specialize in?
Dr. Marsh is an oral surgeon in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Oral & Maxillofacial Surgery”.
NPI registry
Where is Dr. Marsh located?
Dr. Marsh is listed at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Marsh's phone number?
The number on file is (617) 726-8222. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Marsh's NPI number?
Dr. Marsh's National Provider Identifier is 1699938274. 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 Dr. Marsh go to medical school?
Dr. Marsh attended Tufts University School of Dental Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Marsh been practicing?
Dr. Marsh has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Marsh do most often?
According to Medicare billing data, Dr. Marsh the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Marsh confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marsh. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.