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

Dr. Douglas R Macmillan, DDS

Individual provider Dentist · NPI 1225241524

Dr. Douglas R Macmillan, DDS is a Dentist in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

55 E Washington St Ste 2401
Chicago, IL 60602-2217
Phone: (312) 372-3323
Fax: (312) 372-2832
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X (IL)

Record details

NPI number1225241524
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedMay 7, 2007
Last updated in NPPESJuly 8, 2007
Mailing address55 E Washington St Ste 2401, Chicago, IL 60602-2217

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