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

Dr. Len Michael Lee, DO

Individual provider Emergency Medicine Physician · NPI 1598818395

Dr. Len Michael Lee, DO is an Emergency Medicine in Barrington, Illinois. Graduated from Oklahoma State University College of Osteopathic Medicine in 1990, 36 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
36
Trained at
Oklahoma State University College of Osteopathic Medicine
Licensed in
IL
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

450 W Highway 22
Barrington, IL 60010-1919
Phone: (847) 381-9600
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036089274 (IL)

Record details

NPI number1598818395
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 18, 2007
Last updated in NPPESOctober 15, 2010
Mailing addressPo Box 98, Barrington, IL 60010-0098

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOKLAHOMA STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1990 (36 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Barrington