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

Mervin J. Weis & Bruce L. Ferguson MD, SC

Organization Internal Medicine Physician · NPI 1821218793

Mervin J. Weis & Bruce L. Ferguson MD, SC is an Internal Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007

Practice location Address checks out

4640 N Marine Dr Ste C 6100
Chicago, IL 60640-5719
Phone: (773) 769-4413
Fax: (773) 769-5140
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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 (IL)

Record details

NPI number1821218793
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Bruce Ferguson — Doctor · (773) 769-4413
NPI enumeratedApril 26, 2007
Last updated in NPPESAugust 22, 2020
Mailing address4640 N Marine Dr, Ste C 6100, Chicago, IL 60640-5719

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