JOHN LAWRENCE DUFFY O.D.
NPI 1184769713
Optometrist in Rosemont, PA

Q: What is John Duffy's NPI number?

The NPI number for John Duffy is 1184769713. It was assigned to this individual provider in the NPPES registry on February 21, 2007.

Q: What is John Duffy's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for John Duffy was last updated on September 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 21, 2007

1211 W. LANCASTER AVE., ROSEMONT, PA 19010(610) 525-2580(610) 525-2705 Get Directions Write a Review

NPPES record last updated: September 11, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About John Lawrence Duffy O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN LAWRENCE DUFFY O.D. (NPI 1184769713) is an individual optometrist in Rosemont, Pennsylvania, licensed in Pennsylvania (OEG001604) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1184769713

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameJOHN LAWRENCE DUFFYCredential: O.D.

Location Address1211 W. LANCASTER AVE.Rosemont, PA 19010

Mailing Address1211 W. Lancaster Ave.Rosemont, PA 19010 · (610) 525-2580 · Fax (610) 525-2705

Phone(610) 525-2580

Fax(610) 525-2705

Sole ProprietorYes

Enumeration DateFebruary 21, 2007

Last NPPES UpdateSeptember 11, 2007

✔ NPI 1184769713 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in PA · OEG001604

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

1211 W. LANCASTER AVE., Rosemont, PA 19010

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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MIN HOA SON O.D.

Optometrist

1211 W. LANCASTER AVE.
ROSEMONT, PA 19010

Delaware County (610) 525-2580

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Duffy's NPI number?

The NPI number for John Duffy is 1184769713. It was assigned to this individual provider in the NPPES registry on February 21, 2007.

Where is John Duffy located?

John Duffy practices at 1211 W. Lancaster Ave., Rosemont, PA 19010. The listed phone number is (610) 525-2580.

What is John Duffy's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for John Duffy was last updated on September 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.