NPPES file of Aug 9, 2026

Michael Nicholas Riehlmann, LCSW

Clinical Social Worker · Chicago, IL

Michael Nicholas Riehlmann, LCSW is a clinical social worker with a practice address in Chicago, Illinois, and NPI 1841727542, issued on May 12, 2017. Check the license (Illinois 149021484, 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
1841727542
Name
Michael Nicholas Riehlmann
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149021484 IL
Self-reported in NPPES; status is on the state search
Practice location
2451 N Lincoln Ave, Chicago, IL 60614
Phone
(504) 228-3931
Enumerated
May 12, 2017
Record last updated
Aug 18, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20250325003217); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest clinical social worker records → All 13,637 in Illinois → Look up another NPI →

Also registered at 2451 N Lincoln Ave

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

  1. Nora Durkin, LPCMental Health Counselor1295315869
  2. Sara Hernandez, LCSWClinical Social Worker1093312571
  3. Jessica Moreno, LCSWClinical Social Worker1912630468
  4. Michael SalehSocial Worker1538880851
  5. Xochitl Sandoval, LCSWClinical Social Worker1891191144

Verify Michael Nicholas Riehlmann 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 149021484    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. Anchor Health Counseling LLCDeerfield, IL

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

Michael Nicholas Riehlmann among 13,637 clinical social worker records in Illinois

Michael Nicholas Riehlmann, 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 2017, is newer than 50% of them.

  • NPI issued2017 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2016 · 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).

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.

All 13,637 in Illinois → Every provider in Chicago → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Rachel Bickenbach, LCSWChicago, IL 606141811093800
  2. Beth Bollenbach, LCSWChicago, IL 606141396825592
  3. Constance Goldberg, LCSW BCDChicago, IL 606141346358751
  4. Sarah Harding, MA LCSWChicago, IL 606141265415657
  5. John Harris, LCSWChicago, IL 606141629168661
  6. Judith Mintz, MSWChicago, IL 606141932280781
  7. Lisa Poe, LCSWChicago, IL 606141699853945
  8. Marilyn Rusnak, M.A.Chicago, IL 606141952383374

Common questions

What is Michael Nicholas Riehlmann, LCSW's NPI number?

Michael Nicholas Riehlmann, LCSW's National Provider Identifier (NPI) is 1841727542, issued on May 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Michael Nicholas Riehlmann, LCSW located?

The NPPES record lists a practice address at 2451 N Lincoln Ave, Chicago, IL, 60614. Phone: (504) 228-3931. Providers update this record themselves, so call before visiting.

How can I verify Michael Nicholas Riehlmann, LCSW's license?

NPPES lists Illinois license number 149021484, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.