Martin Williams, MD
NPI 1851386429 · Surgery Physician · Dorchester Center, MA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martin Williams, MD is a Surgery Physician provider in Dorchester Center, MA (NPI 1851386429).
Provider details
- NPI number
- 1851386429
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 52959 (MA)
Specialties & taxonomies
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
21 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
408 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) |
|---|---|---|
| Removal of Skin and Tissue, 20.0 Sq Cm Or Less11042 | 189 | $64 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 68 | $37 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 66 | $62 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 49 | $99 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 23 | $121 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 137 | 26 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 94 | — |
| Zolpidem Tartrate | 34 | — |
| Mupirocin | 33 | 15 |
| Gabapentin | 25 | — |
| Lorazepam | 24 | — |
| Clindamycin Hcl | 22 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$290 across 6 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
Registry dates
- Enumerated
- 2005-09-20
- Last updated
- 2011-10-24
Frequently asked questions
- What is Martin Williams's NPI number?
- Martin Williams's National Provider Identifier (NPI) is 1851386429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Williams's specialty?
- Martin Williams is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Martin Williams located?
- Martin Williams's practice location on file with NPPES is 2100 Dorchester Ave, Dorchester Center, MA 02124-5615.
- What is Martin Williams's phone number?
- The practice phone number listed in the NPPES registry for Martin Williams is (617) 364-4380.
- Does Martin Williams accept Medicare?
- Martin Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martin Williams's NPI active?
- Yes — Martin Williams's NPI (1851386429) is active in the NPPES registry as of the last update on 2011-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.