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

Dr. Thomas J Nielsen, MD

Individual provider Otolaryngology Physician · NPI 1235138546

Dr. Thomas J Nielsen, MD is an Otolaryngology Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

Licensed in
IL
In the registry since
2005
Specialties on file
2
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

1611 W Harrison St Ste 550
Chicago, IL 60612-4861
Phone: (312) 942-6100
Fax: (312) 942-6225
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 036072375 (IL)
Plastic Surgery within the Head & Neck (Otolaryngology) Physician Taxonomy 207YX0007X · Licence 036-072375 (IL)

Record details

NPI number1235138546
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2005
Last updated in NPPESMay 4, 2011

Other providers in Chicago