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

Douglas R. Finlayson, MD

Individual provider Family Medicine Physician · NPI 1134225543

Douglas R. Finlayson, MD is a Family Medicine Physician in Glen Ellyn, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
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

364 Pembroke Ln Apt 4
Glen Ellyn, IL 60137-6643
Phone: (224) 392-5796
Fax: (773) 360-2508
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 36-42256 (IL)

Record details

NPI number1134225543
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 15, 2006
Last updated in NPPESJanuary 18, 2020
Certification dateJanuary 18, 2020
Mailing address2217 N Lincoln Ave, Chicago, IL 60614-3717

Other providers in Glen Ellyn