NPPES file of Aug 9, 2026

Isaac Obenzinger, LCSW

Clinical Social Worker · Chicago, IL

Isaac Obenzinger, LCSW is a clinical social worker with a practice address in Chicago, Illinois, and NPI 1407364219, issued on Jan 15, 2018. Check the license (Illinois 149019728, 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 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407364219
Name
Isaac Obenzinger
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149019728 IL
Self-reported in NPPES; status is on the state search
Practice location
2740 W Foster Ave Ste 412, Chicago, IL 60625
Phone
(773) 878-8200
Enumerated
Jan 15, 2018
Record last updated
Oct 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(773) 293-5346
Medicare enrollment
Enrolled (PECOS I20180208002248); 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 2740 W Foster Ave Ste 412

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

  1. Sau Yu Chen, RDN, LDNRegistered Dietitian1306532213
  2. Robin Gilson, PSYDClinical Psychologist1821360900
  3. Oladimeji Kassim, FNP-CPsychiatric/Mental Health Nurse Practitioner1861885675
  4. Amrita Kushal, M.D.Cardiovascular Disease Physician1679898746
  5. Carmen Macias Huerta, M.D.Pulmonary Disease Physician1891753588

Verify Isaac Obenzinger 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 149019728    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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The MIPS final score for 2023 (Medicare payment program): 93.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Endeavor Health Medical GroupEvanston, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 4,368 in Chicago → All 13,637 in Illinois → Every provider in Chicago →

Other clinical social worker records in Illinois

  1. Leah A' Hearn, LCSWSavoy, IL1124790829
  2. Bruce AaronChicago, IL1013069087
  3. Melissa Aaron, LCSWWest Frankfort, IL1437505526
  4. Marcus Abate, MSWAurora, IL1679904767
  5. Nadia Abbas, LCSWChicago, IL1578176400
  6. Trisha Abbey, LCSWPalatine, IL1477970176
  7. Mary Abbott, LCSWElgin, IL1073787685
  8. Susan Abbott, LCSWOak Park, IL1235456930
  9. Ghada AbdallaChampaign, IL1235015553
  10. Samella Abdullah, PH.D.Chicago, IL1356404263

Common questions

What is Isaac Obenzinger, LCSW's NPI number?

Isaac Obenzinger, LCSW's National Provider Identifier (NPI) is 1407364219, issued on Jan 15, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Isaac Obenzinger, LCSW located?

The NPPES record lists a practice address at 2740 W Foster Ave Ste 412, Chicago, IL, 60625. Phone: (773) 878-8200. Providers update this record themselves, so call before visiting.

How can I verify Isaac Obenzinger, LCSW's license?

NPPES lists Illinois license number 149019728, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

What is Isaac Obenzinger, LCSW's MIPS final score?

The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.