Provider Profile

David M. Duffy, OD

Unclaimed Profile

About Dr. Duffy

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Specialty

Optometrist (Primary)
Optometrist (Additional)

Credentials & Licensing

PA licenseOEG000992
DE licenseI3-0001415
NPI1295778124
NPI issued06/14/2006

Source: NPPES NPI Registry

Common questions

What does Dr. Duffy specialize in?

Dr. Duffy is an optometrist in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is Dr. Duffy located?

Dr. Duffy is listed at 1103 Chestnut St, Philadelphia, PA 19107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Duffy's phone number?

The number on file is (484) 889-8985. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Duffy's NPI number?

Dr. Duffy's National Provider Identifier is 1295778124. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

How long has Dr. Duffy been practicing?

Dr. Duffy has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Dr. Duffy confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Duffy. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.