IndividualActive
Diane Duffy
NPI 1194227017 · Hearing Instrument Specialist · Fair Oaks, CA
Provider details
- NPI number
- 1194227017
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 8311 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
Established profile(68/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
11723 Fair Oaks Blvd
Fair Oaks, CA 95628-2816
Phone: (916) 961-2154
Fax: (916) 880-5619
Street-level locationGet directions
Mailing address
11723 Fair Oaks Blvd
Fair Oaks, CA 95628-2816
Registry dates
- Enumerated
- 2018-03-07
- Last updated
- 2018-03-07
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.