NPPES file of Aug 9, 2026

Joseph D. Siegel, LCSW

Clinical Social Worker · Princeton, IL

Joseph D. Siegel, LCSW is a clinical social worker with a practice address in Princeton, Illinois, and NPI 1053976712, issued on May 7, 2019. Check the license (Illinois 149.021227, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1053976712
Name
Joseph D. Siegel
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149.021227 IL
Self-reported in NPPES; status is on the state search
Practice location
213 N Main St, Princeton, IL 61356
Phone
(815) 793-8308
Enumerated
May 7, 2019
Record last updated
May 7, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190918001768); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Joseph D. Siegel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 149.021227
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Osf Multi-Specialty GroupEvergreen Park, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joseph D. Siegel among 13,637 clinical social worker records in Illinois

Joseph D. Siegel, LCSW is one of 13,637 clinical social worker records with a practice address in Illinois. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 59% of them.

  • NPI issued2019 · 59% of these records are older, 36% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2017 · median 2010 among the 2,895 with a school on file
  • Record last updated2019 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 clinical social worker records list a practice address in Princeton

They are 13 of the 126 NPPES records with a practice address in Princeton, and 13,637 clinical social worker records in Illinois.

The 8 clinical social worker records with the nearest ZIP codes

  1. Tricia Cervantes, LCSWPrinceton, IL 613561154287191
  2. Stephen Christopherson, LCSWPrinceton, IL 613561083288468
  3. Christy Dale, LCSW, CADCPrinceton, IL 613561942187463
  4. Grace Eager, LCSWPrinceton, IL 613561093601890
  5. Susan ErnstPrinceton, IL 613561306409933
  6. David GorenzPrinceton, IL 613561740610765
  7. Mark Horwitz, LCSW CADCPrinceton, IL 613561801985759
  8. Lisa Johnson, LCSWPrinceton, IL 613561417375650

Common questions

What is Joseph D. Siegel, LCSW's NPI number?

Joseph D. Siegel, LCSW's National Provider Identifier (NPI) is 1053976712, issued on May 7, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Joseph D. Siegel, LCSW located?

The NPPES record lists a practice address at 213 N Main St, Princeton, IL, 61356. Phone: (815) 793-8308. Providers update this record themselves, so call before visiting.

How can I verify Joseph D. Siegel, LCSW's license?

NPPES lists Illinois license number 149.021227, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.