NPPES file of Aug 9, 2026

Richard Allen Jentzen, LCSW

Clinical Social Worker · Chicago, IL

Richard Allen Jentzen, LCSW is a clinical social worker with a practice address in Chicago, Illinois, and NPI 1487883690, issued on Jul 9, 2009. Check the license (Illinois 149009287, 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
1487883690
Name
Richard Allen Jentzen
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149009287 IL
Self-reported in NPPES; status is on the state search
Practice location
5455 N Sheridan RD, Chicago, IL 60640
Phone
(773) 275-0999
Enumerated
Jul 9, 2009
Record last updated
Jul 9, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20250729004596); 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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Also registered at 5455 N Sheridan RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Keenan Ferrell, PSY.D.Clinical Psychologist1801927702
  2. William Woods, M.A.Counselor1235317165

Verify Richard Allen Jentzen 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 149009287
    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. Inclusive Insight Psychotherapy And ConsultingChicago, IL

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

Richard Allen Jentzen among 13,637 clinical social worker records in Illinois

Richard Allen Jentzen, 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 2009, is newer than 23% of them.

  • NPI issued2009 · 23% of these records are older, 74% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated1998 · median 2010 among the 2,895 with a school on file
  • Record last updated2009 · 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).

4,368 clinical social worker records list a practice address in Chicago

They are 4,368 of the 63,379 NPPES records with a practice address in Chicago, and 13,637 clinical social worker records in Illinois.

The 8 clinical social worker records with the nearest ZIP codes

  1. Roberta Barry, LCSWChicago, IL 606401578560736
  2. Sara Forsythe Menna, LCSWChicago, IL 606401518937556
  3. Carolyn Gehle, LCSWChicago, IL 606401619951365
  4. Melanie Geyer, LCSWChicago, IL 606401356363394
  5. Valerie Grunsted, MSW, LCSWChicago, IL 606401578546537
  6. Todd Harrison, LCSWChicago, IL 606401861411357
  7. Nadine Ibrahim, LCSWChicago, IL 606401376552596
  8. Jennifer Jones, LCSWChicago, IL 606401780676106

Common questions

What is Richard Allen Jentzen, LCSW's NPI number?

Richard Allen Jentzen, LCSW's National Provider Identifier (NPI) is 1487883690, issued on Jul 9, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Richard Allen Jentzen, LCSW located?

The NPPES record lists a practice address at 5455 N Sheridan RD, Chicago, IL, 60640. Phone: (773) 275-0999. Providers update this record themselves, so call before visiting.

How can I verify Richard Allen Jentzen, LCSW's license?

NPPES lists Illinois license number 149009287, 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.