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

Michael Heffernan

Individual provider Internal Medicine Physician · NPI 1891374906

Michael Heffernan is an Internal Medicine Physician in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2021
Specialties on file
2

Practice location Address checks out

1620 W Harrison St
Chicago, IL 60612-3801
Phone: (312) 942-7100
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 125.078139 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1891374906
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 6, 2021
Last updated in NPPESJune 18, 2021
Certification dateJune 18, 2021

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