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

Dr. Jon P Gieser, MD

Individual provider Ophthalmology Physician · NPI 1235127168

Dr. Jon P Gieser, MD is an Ophthalmology in Wheaton, Illinois. Graduated from University of Michigan Medical School in 1989, 37 years ago. Practices with Wheaton Eye Clinic Ltd, a 44-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
37
Trained at
University of Michigan Medical School
Licensed in
IL
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2015 N Main St
Wheaton, IL 60187-3152
Phone: (630) 668-8250
Fax: (630) 668-8916
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence 036-086450 (IL)
Ophthalmology Physician Taxonomy 207W00000X · Licence 036-086450 (IL)

Record details

NPI number1235127168
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 13, 2005
Last updated in NPPESAugust 21, 2024
Certification dateAugust 21, 2024

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Group practice Wheaton Eye Clinic Ltd — 44 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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