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

John Lawrence Duffy, OD

Individual provider Optometrist · NPI 1184769713

John Lawrence Duffy, OD is an Optometrist in Rosemont, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2007
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

1211 W Lancaster Ave
Rosemont, PA 19010
Phone: (610) 525-2580
Fax: (610) 525-2705
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OEG001604 (PA)

Record details

NPI number1184769713
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedFebruary 21, 2007
Last updated in NPPESSeptember 11, 2007

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