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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATTHEW J FLEMING LCSW
NPI 1669207452
Social Worker - Clinical in Chicago, IL

Active since September 03, 2024PECOS Enrolled
676 N SAINT CLAIR ST STE 1100, CHICAGO, IL 60611(312) 695-5060(312) 695-5010 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Matthew J Fleming Lcsw NPPES

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

MATTHEW J FLEMING LCSW (NPI 1669207452) is an individual clinical provider in Chicago, Illinois, licensed in Illinois (149031569) and active in the NPI registry since September 2024. He is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1669207452
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMATTHEW J FLEMINGCredential: LCSW
Location Address676 N SAINT CLAIR ST STE 1100Chicago, IL 60611-2954
Mailing Address676 N Saint Clair St Ste 1100Chicago, IL 60611-2954 · (312) 695-5060 · Fax (312) 695-5010
Phone(312) 695-5060
Fax(312) 695-5010
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 3, 2024
Last NPPES UpdateOctober 20, 2026
NPPES CertifiedOctober 20, 2026
✔ NPI 1669207452 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in IL · 149031569
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.
Also ListedSocial WorkerTaxonomy 104100000X
676 N SAINT CLAIR ST STE 1100, Chicago, IL 60611
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Matthew J Fleming Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6002388535
PECOS Enrollment IDI20260616003368
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 Matthew Fleming reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwestern Medical Faculty Foundation
8.4 mi
Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
NPI 1346235314 (855) 694-2866

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 60611 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 $60.08 – $183.39
Typical copayment $0.00 (range $15.02 – $45.84)
Most-billed visit code NA
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
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 20

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

GENEVA JOY STEWART APRN, CNP
Nurse Practitioner
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
SARAH LILLIAN RAZO LCSW
Social Worker (Clinical)
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
ANDREW CHRISTOPHER NEW M.D.
Psychiatry & Neurology (Psychiatry)
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
DR. KRISTINA JOHNSON PHD
Clinical Neuropsychologist
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
EDGAR WOZNICA M.D.
Psychiatry & Neurology (Addiction Psychiatry)
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
SACHIN PATEL MD
Psychiatry & Neurology (Psychiatry)
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
MICHAEL MARCANGELO
Psychiatry & Neurology (Psychiatry)
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060
DR. SHAN H SIDDIQI MD
Psychiatry & Neurology (Psychiatry)
676 N SAINT CLAIR ST STE 1100
CHICAGO, IL 60611
Cook County (312) 695-5060

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 Matthew Fleming's NPI number?

The NPI number for Matthew Fleming is 1669207452. It was assigned to this individual provider in the NPPES registry on September 3, 2024.

Where is Matthew Fleming located?

Matthew Fleming practices at 676 N Saint Clair St Ste 1100, Chicago, IL 60611. The listed phone number is (312) 695-5060.

What is Matthew Fleming's specialty?

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

Is Matthew Fleming enrolled in Medicare?

Yes. Matthew Fleming is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Matthew Fleming's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Fleming reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Matthew Fleming's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Fleming was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.