Nicholas Duffy
NPI 1154200905 · Day Training/Habilitation Specialist · San Francisco, CA
Nicholas Duffy is a Day Training/Habilitation Specialist provider in San Francisco, CA (NPI 1154200905).
Provider details
- NPI number
- 1154200905
- Entity type
- Individual
- Primary specialty
- Day Training/Habilitation SpecialistNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Nursing Service Related Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2025-08-27
- Last updated
- 2025-12-08
- Certified
- 2025-12-08
Frequently asked questions
- What is Nicholas Duffy's NPI number?
- Nicholas Duffy's National Provider Identifier (NPI) is 1154200905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Duffy's specialty?
- Nicholas Duffy is listed in the NPPES registry with a primary specialty of Day Training/Habilitation Specialist (Nursing Service Related Providers).
- Where is Nicholas Duffy located?
- Nicholas Duffy's practice location on file with NPPES is 1801 Vicente St, San Francisco, CA 94116-2923.
- What is Nicholas Duffy's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Duffy is (415) 681-3211.
- Is Nicholas Duffy's NPI active?
- Yes — Nicholas Duffy's NPI (1154200905) is active in the NPPES registry as of the last update on 2025-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.