Denise Franken-Duff, H.A.D.
NPI 1407298490 · Hearing Instrument Specialist · Apple Valley, CA
Denise Franken-Duff, H.A.D. is a Hearing Instrument Specialist provider in Apple Valley, CA (NPI 1407298490).
Provider details
- NPI number
- 1407298490
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Credential
- H.A.D.
- Sex
- Female
- Sole proprietor
- No
- License
- HA 4081 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-07-19
- Last updated
- 2020-12-29
- Certified
- 2020-12-29
Frequently asked questions
- What is Denise Franken-Duff's NPI number?
- Denise Franken-Duff's National Provider Identifier (NPI) is 1407298490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denise Franken-Duff's specialty?
- Denise Franken-Duff is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Denise Franken-Duff located?
- Denise Franken-Duff's practice location on file with NPPES is 19195 US Highway 18 Ste 202, Apple Valley, CA 92307-2562.
- What is Denise Franken-Duff's phone number?
- The practice phone number listed in the NPPES registry for Denise Franken-Duff is (760) 242-2388.
- Is Denise Franken-Duff's NPI active?
- Yes — Denise Franken-Duff's NPI (1407298490) is active in the NPPES registry as of the last update on 2020-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.