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

Lake County Internal Medicine Associates, LLC

Organization Internal Medicine Physician · NPI 1154686525

Lake County Internal Medicine Associates, LLC is an Internal Medicine Physician in Long Grove, Illinois. Registered with an NPI since 2012.

In the registry since
2012
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

5911 Kildeer Ct
Long Grove, IL 60047-5052
Phone: (847) 478-5108
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1154686525
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mariusz Milejczyk — President · (847) 478-5108
NPI enumeratedJuly 11, 2012
Last updated in NPPESJuly 11, 2012
Mailing address5911 Kildeer Ct, Long Grove, IL 60047-5052

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