Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Heidi Rahn, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1891057949

Heidi Rahn, MD practises Pathology in Westmont, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2012, 14 years ago. Practices with Associated Pathologists and Laboratory Physicians LLC, a 13-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
14
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

318 E Des Moines St
Westmont, IL 60559
Phone: (815) 751-4937
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2650 Ridge Ave Ste 1304, Evanston, IL 60201-1718 — (847) 570-2019
  • 1206 E 9th St Ste 200, Lockport, IL 60441-2404 — (630) 545-7524

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 036.138007 (IL)

Record details

NPI number1891057949
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2012
Last updated in NPPESMay 30, 2025
Certification dateMay 30, 2025

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Associated Pathologists And Laboratory Physicians Llc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients654
Services billed 2,216 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Associated Pathologists and Laboratory Physicians LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 13 clinicians in the practice; 10 are shown here.