Sara Duffy, NP
NPI 1649382268 · Psychiatric/Mental Health Nurse Practitioner · San Francisco, CA
Sara Duffy, NP is a Psychiatric/Mental Health Nurse Practitioner provider in San Francisco, CA (NPI 1649382268).
Provider details
- NPI number
- 1649382268
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 16349 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-08-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sara Duffy's NPI number?
- Sara Duffy's National Provider Identifier (NPI) is 1649382268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sara Duffy's specialty?
- Sara Duffy is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sara Duffy located?
- Sara Duffy's practice location on file with NPPES is 4150 Clement St, San Francisco, CA 94121-1545.
- What is Sara Duffy's phone number?
- The practice phone number listed in the NPPES registry for Sara Duffy is (415) 221-4810.
- Is Sara Duffy's NPI active?
- Yes — Sara Duffy's NPI (1649382268) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.