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Jennifer Duffy, PHD
NPI 1881716470 · Specialist · Corte Madera, CA
Jennifer Duffy, PHD is a Specialist provider in Corte Madera, CA (NPI 1881716470).
Provider details
- NPI number
- 1881716470
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY17924 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(89/100 index)
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
100 Tamal Plz
Suite 107
Corte Madera, CA 94925-1125
Phone: (415) 721-9721
Street-level locationGet directions
Mailing address
Po Box 1126
Larkspur, CA 94977-1126
Registry dates
- Enumerated
- 2007-04-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jennifer Duffy's NPI number?
- Jennifer Duffy's National Provider Identifier (NPI) is 1881716470, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Duffy's specialty?
- Jennifer Duffy is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Jennifer Duffy located?
- Jennifer Duffy's practice location on file with NPPES is 100 Tamal Plz, Corte Madera, CA 94925-1125.
- What is Jennifer Duffy's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Duffy is (415) 721-9721.
- Is Jennifer Duffy's NPI active?
- Yes — Jennifer Duffy's NPI (1881716470) 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.