Joy Dieffenderfer
NPI 1407183817 · Speech-Language Pathologist · Whitehall, PA
Joy Dieffenderfer is a Speech-Language Pathologist provider in Whitehall, PA (NPI 1407183817).
Provider details
- NPI number
- 1407183817
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- SL009120 (PA)
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
16 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
- 2009-11-05
- Last updated
- 2011-01-26
Frequently asked questions
- What is Joy Dieffenderfer's NPI number?
- Joy Dieffenderfer's National Provider Identifier (NPI) is 1407183817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joy Dieffenderfer's specialty?
- Joy Dieffenderfer is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Joy Dieffenderfer located?
- Joy Dieffenderfer's practice location on file with NPPES is 3721 Crescent Ct W, Whitehall, PA 18052-3446.
- What is Joy Dieffenderfer's phone number?
- The practice phone number listed in the NPPES registry for Joy Dieffenderfer is (610) 767-7667.
- Is Joy Dieffenderfer's NPI active?
- Yes — Joy Dieffenderfer's NPI (1407183817) is active in the NPPES registry as of the last update on 2011-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.