Brian Duff, MD
NPI 1659489714 · Otology & Neurotology Physician · Providence, RI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Duff, MD is a Otology & Neurotology Physician provider in Providence, RI (NPI 1659489714).
Provider details
- NPI number
- 1659489714
- Entity type
- Individual
- Primary specialty
- Otology & Neurotology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD09153 (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
19 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
772 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 | 373 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 133 | $91 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 81 | $168 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 59 | $111 |
| Simple Removal of Skin Debris and Drainage of Mastoid Cavity69220 | 48 | $82 |
| Incision of Eardrum With Insertion of Eardrum Tube Under Local Or Topical Anesthesia |
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 |
|---|---|---|
| Ofloxacin | 148 | 82 |
| Fluticasone Propionate | 117 | 54 |
| Neomycin/Polymyxin B/Hydrocortbrand: Neomycin-Polymyxin-Hc | 113 | 58 |
| Cephalexin | 51 | 43 |
| Ciprofloxacin Hcl/Dexamethbrand: Ciprofloxacin-Dexamethasone | 41 | 24 |
| Triamterene/Hydrochlorothiazidbrand: Triamterene-Hydrochlorothiazid | 41 | 11 |
| Meclizine Hcl | 29 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-28
- Last updated
- 2015-06-08
Frequently asked questions
- What is Brian Duff's NPI number?
- Brian Duff's National Provider Identifier (NPI) is 1659489714, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Duff's specialty?
- Brian Duff is listed in the NPPES registry with a primary specialty of Otology & Neurotology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Duff located?
- Brian Duff's practice location on file with NPPES is 830 Eddy St, Providence, RI 02905-4810.
- What is Brian Duff's phone number?
- The practice phone number listed in the NPPES registry for Brian Duff is (401) 272-2300.
- Does Brian Duff accept Medicare?
- Brian Duff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Duff's NPI active?
- Yes — Brian Duff's NPI (1659489714) is active in the NPPES registry as of the last update on 2015-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.