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

Aaron J Clark, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1245791797

Aaron J Clark, MD is a Thoracic Surgery in Chicago, Illinois. Graduated from Indiana University School of Medicine in 2019, 7 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
7
Trained at
Indiana University School of Medicine
Licensed in
IL
In the registry since
2019
Specialties on file
2
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

675 N Saint Clair St Ste 19-100
Chicago, IL 60611-5969
Phone: (312) 664-3278
Fax: (312) 695-5774
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 251 E Huron St, Chicago, IL 60611-3055 — (312) 926-2000

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 036175284 (IL)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence 125.073748 (IL)

Record details

NPI number1245791797
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2019
Last updated in NPPESJuly 3, 2025
Certification dateJuly 3, 2025
Mailing address251 E Huron St, Chicago, IL 60611-3055

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyTHORACIC SURGERY
Also practisesCARDIAC SURGERY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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