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

John Doyle Knouse, OD

Individual provider Optometrist · NPI 1851399281

John Doyle Knouse, OD is an Optometry in Dublin, Pennsylvania. Graduated from Pennsylvania College of Optometry in 1988, 38 years ago. Practices with Wisber Eye Care PC, a 4-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
38
Trained at
Pennsylvania College of Optometry
Licensed in
PA
In the registry since
2005
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

174 N Main St
Dublin, PA 18917-2108
Phone: (215) 249-3937
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OEG000936 (PA)
Eyewear Supplier Taxonomy 332H00000X · Licence OEG000936 (PA)

Record details

NPI number1851399281
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedJuly 10, 2005
Last updated in NPPESNovember 29, 2011
Mailing address174 N Main St, Dublin, PA 18917-2108

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolPENNSYLVANIA COLLEGE OF OPTOMETRY
Graduated 1988 (38 years in practice)
Group practice Wisber Eye Care Pc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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