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MS. DIANE MARIE GILLIARD LCPC, CADC
NPI 1609984285
Counselor - Mental Health in Oak Park, IL

Active since August 25, 2006
120 S MARION ST, 4TH FLOOR, OAK PARK, IL 60302(708) 406-3105 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Ms. Diane Marie Gilliard Lcpc, Cadc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. DIANE MARIE GILLIARD LCPC, CADC (NPI 1609984285) is an individual mental health provider in Oak Park, Illinois and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1609984285
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMS. DIANE MARIE GILLIARDCredential: LCPC, CADC
Location Address120 S MARION ST, 4TH FLOOROak Park, IL 60302-2809
Mailing Address714 S Fairfield AveLombard, IL 60148-3504 · (630) 620-4327
Phone(708) 406-3105
Sole ProprietorYes
Enumeration DateAugust 25, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1609984285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License 13726 (IL)
120 S MARION ST, Oak Park, IL 60302
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CARMEL PERRONE LCSW
Social Worker (Clinical)
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500
JANET MARIE MANKOFF
Social Worker (Clinical)
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500
SAMANTHA BILL LPC
Counselor (Mental Health)
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500
NIKISHA S BURKS CADC
Counselor (Mental Health)
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500
MRS. SHEILA RAE HEMKER M.S.W., LCSW
Social Worker (Clinical)
120 S MARION ST, 4TH FLOOR
OAK PARK, IL 60302
Cook County (708) 386-2100
MIRANDA ESTRADA LSW
Social Worker
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500
CHRISTOPHER JAY FOX LCSW
Social Worker (Clinical)
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500
DOMINIQUE LEONARDI QMHP
Counselor (Mental Health)
120 S MARION ST
OAK PARK, IL 60302
Cook County (708) 383-7500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diane Gilliard's NPI number?

The NPI number for Diane Gilliard is 1609984285. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Where is Diane Gilliard located?

Diane Gilliard practices at 120 S Marion St 4th Floor, Oak Park, IL 60302. The listed phone number is (708) 406-3105.

What is Diane Gilliard's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Diane Gilliard was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.