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

Nathan Ontrop MD SC

Organization Psychiatry Physician · NPI 1619498052

Nathan Ontrop MD SC is a Psychiatry Physician in Chicago, Illinois. Registered with an NPI since 2017.

In the registry since
2017

Practice location Address checks out

25 E Washington St Ste 1601
Chicago, IL 60602
Phone: (312) 725-2347
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X

Record details

NPI number1619498052
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Nathan Ontrop — President · (312) 725-2347
NPI enumeratedJuly 6, 2017
Last updated in NPPESMay 22, 2018
Mailing address25 E Washington St Ste 1601, Chicago, IL 60602-1882

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