NPPES file of Aug 9, 2026

Jeensoo Chang, M.D.

Family Medicine Physician · Chicago, IL

Jeensoo Chang, M.D. is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1699046656, issued on Jan 23, 2012. Check the license (Illinois 036.129144, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1699046656
Name
Jeensoo Chang
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
036.129144 IL
Self-reported in NPPES; status is on the state search
Practice location
1653 W Congress Pkwy, Chicago, IL 60612
Phone
(312) 942-7030
Enumerated
Jan 23, 2012
Record last updated
Jun 15, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(312) 563-4212
Medicare enrollment
Enrolled (PECOS I20130626000610); 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 1653 W Congress Pkwy

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

  1. Raid Abdulla, MDPediatric Cardiology Physician1710037742
  2. Pooja AgarwalPsychiatry Physician1407411689
  3. Heidi Aguilar, CRNACertified Registered Nurse Anesthetist1043703796
  4. Jenny AhnEmergency Registered Nurse1124836622
  5. Marwah Al Tekreeti, MDAnatomic Pathology & Clinical Pathology Physician1891539268
  6. Laila Abdulla Al-Harthy, RNRegistered Nurse1619832722

Verify Jeensoo Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036.129144
    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
Open 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 practice group's MIPS final score for 2023 (Medicare payment program): 80.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score65.0
  2. Costout of 100 · 30%63.2
  3. Promoting interoperabilityout of 100 · 25%72.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Mount Sinai Community FoundationChicago, IL

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

Jeensoo Chang among 6,215 family medicine physician records in Illinois

Jeensoo Chang, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 61% of them.

  • NPI issued2012 · 61% of these records are older, 36% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2000 · median 2006 among the 3,714 with a school on file
  • Record last updated2012 · 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 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,593 family medicine physician records list a practice address in Chicago

They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Juliet Bradley, MDChicago, IL 606121629087523
  2. Susan BuchananChicago, IL 606121083725923
  3. Jerome Dalinka, D.O.Chicago, IL 606121871506352
  4. William Ennis, D.O.Chicago, IL 606121649225988
  5. Michael Fessenden, M.D.Chicago, IL 606121023013638
  6. Evelyn FigueroaChicago, IL 606121144333196
  7. David FreedmanChicago, IL 606121568573699
  8. Samuel Grief, M.D.Chicago, IL 606121821101007

Common questions

What is Jeensoo Chang, M.D.'s NPI number?

Jeensoo Chang, M.D.'s National Provider Identifier (NPI) is 1699046656, issued on Jan 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Jeensoo Chang, M.D. located?

The NPPES record lists a practice address at 1653 W Congress Pkwy, Chicago, IL, 60612. Phone: (312) 942-7030. Providers update this record themselves, so call before visiting.

How can I verify Jeensoo Chang, M.D.'s license?

NPPES lists Illinois license number 036.129144, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Jeensoo Chang, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.8 of 100, reported for the practice group. 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.

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.