Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. John M Diehl

Individual provider Hearing Instrument Specialist · NPI 1841528155

Mr. John M Diehl is a Hearing Instrument Specialist in Hanover, Pennsylvania. Works from 2 locations. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2009
Specialties on file
2

Practice location Address checks out

600 Carlisle St Ste A
Hanover, PA 17331-5100
Phone: (717) 632-5558
Fax: (717) 632-7493
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1 E Walnut St, Hanover, PA 17331-3160 — (717) 632-5558

Specialties & licences

Hearing Instrument Specialist (primary) Taxonomy 237700000X · Licence F03408 (PA)
Optician Taxonomy 156FX1800X

Record details

NPI number1841528155
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedNovember 24, 2009
Last updated in NPPESMarch 11, 2024
Certification dateMarch 11, 2024

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