Sean Duffy, D.O.
NPI 1033371752 · Internal Medicine Physician · Arnold, MD
Sean Duffy, D.O. is a Internal Medicine Physician provider in Arnold, MD (NPI 1033371752).
Provider details
- NPI number
- 1033371752
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- H0087213 (MD)
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 tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-25
- Last updated
- 2026-01-13
- Certified
- 2026-01-13
Frequently asked questions
- What is Sean Duffy's NPI number?
- Sean Duffy's National Provider Identifier (NPI) is 1033371752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Duffy's specialty?
- Sean Duffy is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Duffy located?
- Sean Duffy's practice location on file with NPPES is 273 Peninsula Farm Rd Ste D, Arnold, MD 21012-1012.
- What is Sean Duffy's phone number?
- The practice phone number listed in the NPPES registry for Sean Duffy is (410) 699-9692.
- Is Sean Duffy's NPI active?
- Yes — Sean Duffy's NPI (1033371752) is active in the NPPES registry as of the last update on 2026-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.