Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Gregory Joseph Pacelli, MD, PHD

Individual provider Ophthalmology Physician · NPI 1245331388

Dr. Gregory Joseph Pacelli, MD, PHD is an Ophthalmology Physician in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3541 W Irving Park Rd Bldg 1E
Chicago, IL 60618-3219
Phone: (773) 478-1600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 036103468 (IL)

Record details

NPI number1245331388
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedSeptember 25, 2006
Last updated in NPPESMarch 4, 2016

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