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

Dr. William Joseph Cotter III, MD

Individual provider Internal Medicine Physician · NPI 1124282934

Dr. William Joseph Cotter III, MD is an Internal Medicine Physician in North Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2008
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
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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 · Licence 036-123434 (IL)

Record details

NPI number1124282934
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 11, 2008
Last updated in NPPESFebruary 27, 2020
Certification dateFebruary 27, 2020
Mailing address3001 Green Bay Rd, North Chicago, IL 60064-3048

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