John Diehl
NPI 1841528155 · Hearing Instrument Specialist · Hanover, PA
John Diehl is a Hearing Instrument Specialist provider in Hanover, PA (NPI 1841528155).
Provider details
- NPI number
- 1841528155
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- F03408 (PA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
- Optician156FX1800X
Eye and Vision Services 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
2 documented practice locations
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
Additional practice locations (1)
- 1 E Walnut StHanover, PA 17331-3160Phone: (717) 632-5558
Registry dates
- Enumerated
- 2009-11-24
- Last updated
- 2024-03-11
- Certified
- 2024-03-11
Frequently asked questions
- What is John Diehl's NPI number?
- John Diehl's National Provider Identifier (NPI) is 1841528155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Diehl's specialty?
- John Diehl is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is John Diehl located?
- John Diehl's practice location on file with NPPES is 600 Carlisle St Ste a, Hanover, PA 17331-5100.
- What is John Diehl's phone number?
- The practice phone number listed in the NPPES registry for John Diehl is (717) 632-5558.
- Is John Diehl's NPI active?
- Yes — John Diehl's NPI (1841528155) is active in the NPPES registry as of the last update on 2024-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.