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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DIANE DELEONARDO LCSW
NPI 1023932027
Social Worker - Clinical in Springfield, IL

Active since August 05, 2026PECOS Enrolled
901 N 1ST ST STE 225, SPRINGFIELD, IL 62702(217) 788-4065(217) 788-4147 Get Directions Write a Review

NPPES record added: August 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Diane Deleonardo Lcsw NPPES

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

DIANE DELEONARDO LCSW (NPI 1023932027) is an individual clinical provider in Springfield, Illinois, licensed in Illinois (149029637) and active in the NPI registry since August 2026. She is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1023932027
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDIANE DELEONARDOCredential: LCSW
Location Address901 N 1ST ST STE 225Springfield, IL 62702-3760
Mailing Address901 N 1st St Ste 225Springfield, IL 62702-3760 · (217) 788-4065 · Fax (217) 788-4147
Phone(217) 788-4065
Fax(217) 788-4147
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateAugust 5, 2026
NPPES CertifiedAugust 5, 2026
✔ NPI 1023932027 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in IL · 149029637
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
901 N 1ST ST STE 225, Springfield, IL 62702
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane Deleonardo Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1759849755
PECOS Enrollment IDI20260820000257
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Diane Deleonardo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mental Health Centers Of Central Illinois
Same address
Clinical
901 N 1ST ST, SUITE 225
Springfield, IL 62702
  • Reassigned Medicare billing, Illinois enrollment
  • 23 clinicians in this Medicare group
NPI 1750614798 (217) 788-4065

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $54.80 – $168.44
Typical copayment $0.00 (range $13.70 – $42.11)
Most-billed visit code NA
Established Patient
$68.64 typical visit price
range $17.16 – $136.56
Typical copayment $17.16 (range $4.29 – $34.14)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

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

MRS. JUDE ANNE CLAPPER MS RD LDN CDE
Dietitian, Registered
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4115
DOROTHY B RHODES LCPC
Counselor (Professional)
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065
SHANNON J NICE
Counselor
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065
PAMELA PATRICE KEYS LSW
Social Worker
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065
MEAGAN SMITH
Counselor (Professional)
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065
DANIEL S WATERS LPC
Counselor (Professional)
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065
JULIE A BLYTHE RN, MSW, LCSW, CCTP
Social Worker (Clinical)
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065
TIISHA LITTLETON LCPC
Counselor (Professional)
901 N 1ST ST STE 225
SPRINGFIELD, IL 62702
Sangamon County (217) 788-4065

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 Deleonardo's NPI number?

The NPI number for Diane Deleonardo is 1023932027. It was assigned to this individual provider in the NPPES registry on August 5, 2026.

Where is Diane Deleonardo located?

Diane Deleonardo practices at 901 N 1st St Ste 225, Springfield, IL 62702. The listed phone number is (217) 788-4065.

What is Diane Deleonardo's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Diane Deleonardo enrolled in Medicare?

Yes. Diane Deleonardo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Deleonardo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Deleonardo reassigns Medicare benefits to Mental Health Centers Of Central Illinois (Springfield, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diane Deleonardo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Diane Deleonardo accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Diane Deleonardo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Diane Deleonardo was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.