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

John Thucidides Xanthopoulos, MD

Individual provider Internal Medicine Physician · NPI 1306948971

John Thucidides Xanthopoulos, MD is an Internal Medicine Physician in North Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
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

3001 Green Bay Rd
North Chicago, IL 60064-3048
Phone: (847) 688-1900
Fax: (224) 610-2958
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X (IL)

Record details

NPI number1306948971
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 2, 2006
Last updated in NPPESJuly 8, 2007
Mailing address209 Knightsbridge Dr, Mundelein, IL 60060-3242

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