Samuel Duffy, MD
NPI 1922703909 · Student in an Organized Health Care Education/Training Program · Washington, DC
Samuel Duffy, MD is a Student in an Organized Health Care Education/Training Program provider in Washington, DC (NPI 1922703909).
Provider details
- NPI number
- 1922703909
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2023-03-31
- Last updated
- 2023-03-31
- Certified
- 2023-03-28
Frequently asked questions
- What is Samuel Duffy's NPI number?
- Samuel Duffy's National Provider Identifier (NPI) is 1922703909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Duffy's specialty?
- Samuel Duffy is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Samuel Duffy located?
- Samuel Duffy's practice location on file with NPPES is 2115 Wisconsin Avenue Nw, Washington, DC 20007-2265.
- What is Samuel Duffy's phone number?
- The practice phone number listed in the NPPES registry for Samuel Duffy is (202) 944-5400.
- Is Samuel Duffy's NPI active?
- Yes — Samuel Duffy's NPI (1922703909) is active in the NPPES registry as of the last update on 2023-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.