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

Individual provider Optometrist · NPI 1700190535

Jenelle L Mallios Gialousakis, OD is an Optometry in Downers Grove, Illinois. Graduated from New England College of Optometry in 2011, 15 years ago. Practices with Midwestern University, a 117-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
15
Trained at
New England College of Optometry
Licensed in
IL
In the registry since
2010
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

3450 Lacey Rd
Downers Grove, IL 60515-5430
Phone: (630) 743-4500
Fax: (630) 743-4537
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 046011190 (IL)

Record details

NPI number1700190535
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedAugust 4, 2010
Last updated in NPPESNovember 16, 2018

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolNEW ENGLAND COLLEGE OF OPTOMETRY
Graduated 2011 (15 years in practice)
Group practice Midwestern University — 117 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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