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

Marie T Oconnor Parker, MD

Individual provider Emergency Medicine Physician · NPI 1528035789

Marie T Oconnor Parker, MD is an Emergency Medicine in Lemont, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1999, 27 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois and Minnesota.

Years since qualifying
27
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL, MN
In the registry since
2006
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

15900 W 127th St
Lemont, IL 60439-2910
Phone: (630) 243-7100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 6840 Main St, Downers Grove, IL 60516-3425 — (630) 275-6840
  • 885 Roosevelt Rd Ste 100, Glen Ellyn, IL 60137-6141 — (630) 938-6000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036106251 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 46599 (MN)

Record details

NPI number1528035789
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 7, 2006
Last updated in NPPESOctober 24, 2025
Certification dateOctober 24, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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