Shawn Marsh, DMD
NPI 1699938274 · Oral & Maxillofacial Surgery (D.M.D.) · Boston, MA
Enrolled with Medicare as Practitioner - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shawn Marsh, DMD is a Oral & Maxillofacial Surgery (D.M.D.) provider in Boston, MA (NPI 1699938274).
Provider details
- NPI number
- 1699938274
- Entity type
- Individual
- Primary specialty
- Oral & Maxillofacial Surgery (D.M.D.)Allopathic & Osteopathic Physicians
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- No
- License
- D-22172 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
52 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 Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 37 | $68 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 15 | $53 |
Typical Medicare-allowed amounts for these services range $53–$68 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Chlorhexidine Gluconate | 393 | 333 |
| Ibuprofen | 245 | 215 |
| Amoxicillin | 240 | 193 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 143 | 136 |
| Ibuprofenbrand: Ibu | 66 | 59 |
| Clindamycin Hcl | 44 | 34 |
| Azithromycin | 13 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (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
Registry dates
- Enumerated
- 2008-07-03
- Last updated
- 2008-07-03
Frequently asked questions
- What is Shawn Marsh's NPI number?
- Shawn Marsh's National Provider Identifier (NPI) is 1699938274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shawn Marsh's specialty?
- Shawn Marsh is listed in the NPPES registry with a primary specialty of Oral & Maxillofacial Surgery (D.M.D.) (Allopathic & Osteopathic Physicians).
- Where is Shawn Marsh located?
- Shawn Marsh's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is Shawn Marsh's phone number?
- The practice phone number listed in the NPPES registry for Shawn Marsh is (617) 726-8222.
- Does Shawn Marsh accept Medicare?
- Shawn Marsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shawn Marsh's NPI active?
- Yes — Shawn Marsh's NPI (1699938274) is active in the NPPES registry as of the last update on 2008-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.