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

Benedict L Gierl MD and Associates Ltd

Organization Geriatric Psychiatry Physician · NPI 1346423464

Benedict L Gierl MD and Associates Ltd provides Geriatric Psychiatry Physician services in Oak Park, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
What do these letters mean?
Ltd — Limited
A form of business registration, not a clinical qualification.

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Practice location Address checks out

320 N Lombard Ave
Oak Park, IL 60302-2506 Not confirmed with CMS for 18 years — call before visiting
Phone: (708) 386-1831
Fax: (170) 838-6429
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Psychiatry Physician (primary) Taxonomy 2084P0805X · Licence 036066271 (IL)

Record details

NPI number1346423464
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Benedict Gierl — President · (708) 386-1831
NPI enumeratedDecember 12, 2007
Last updated in NPPESSeptember 30, 2008
Mailing address320 N Lombard Ave, Oak Park, IL 60302-2506