William Brennan, M.D.
NPI 1114926185 · Orthopaedic Surgery Physician · Warwick, RI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Brennan, M.D. is a Orthopaedic Surgery Physician provider in Warwick, RI (NPI 1114926185).
Provider details
- NPI number
- 1114926185
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD8718 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
986 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 428 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 246 | $91 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 101 | $40 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 64 | $78 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 54 | $168 |
| X-Ray of Upper Spine, 2-3 Views72040 |
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 |
|---|---|---|
| Cyclobenzaprine Hcl | 130 | 70 |
| Meloxicam | 73 | 24 |
| Celecoxib | 45 | 14 |
| Gabapentin | 43 | 15 |
| Ibuprofen | 39 | 12 |
| Methylprednisolone | 24 | 20 |
| Diazepam | 12 | 12 |
| Lidocaine | 11 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-20
- Last updated
- 2008-01-14
Frequently asked questions
- What is William Brennan's NPI number?
- William Brennan's National Provider Identifier (NPI) is 1114926185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Brennan's specialty?
- William Brennan is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Brennan located?
- William Brennan's practice location on file with NPPES is 120 Centerville Rd, Warwick, RI 02886-4336.
- What is William Brennan's phone number?
- The practice phone number listed in the NPPES registry for William Brennan is (401) 738-3730.
- Does William Brennan accept Medicare?
- William Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Brennan's NPI active?
- Yes — William Brennan's NPI (1114926185) is active in the NPPES registry as of the last update on 2008-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.