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

Constantine Wonais, MD

Individual provider Internal Medicine Physician · NPI 1457340267

Constantine Wonais, MD is an Internal Medicine Physician in Naperville, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

Licensed in
IL
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2255 Monarch Dr
Naperville, IL 60563-4164
Phone: (630) 300-1125
Fax: (630) 300-1394
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036062093 (IL)

Record details

NPI number1457340267
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 14, 2005
Last updated in NPPESFebruary 4, 2021
Certification dateFebruary 4, 2021
Mailing address2255 Monarch Dr, Naperville, IL 60563-4164

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