NPPES file of Aug 9, 2026

Susan Feldt

Internal Medicine Physician · Chicago, IL

Susan Feldt is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1861137432, issued on Apr 28, 2022. Check the license (Illinois 036174291, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861137432
Name
Susan Feldt
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036174291 IL
Self-reported in NPPES; status is on the state search
Practice location
5841 S Maryland Ave # 7082, Chicago, IL 60637
Phone
(773) 702-1447
Enumerated
Apr 28, 2022
Record last updated
Aug 12, 2025
Medicare enrollment
Enrolled (PECOS I20250821001223); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 2022
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 5841 S Maryland Ave # 7082

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

  1. Ezinne AgwaramgboHospitalist Physician1780329953
  2. Aretha Boakye-Donkor, MDInternal Medicine Physician1144885211
  3. Logan Brown, MSStudent in an Organized Health Care Education/Training Program1689517831
  4. Eleanor CheungInternal Medicine Physician1770382186
  5. Lauren Ciulla, MDInternal Medicine Physician1508412727
  6. Alec CzaplickiStudent in an Organized Health Care Education/Training Program1730986043

Verify Susan Feldt 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 036174291
    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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84% fewer Medicare Part D claims than the average internal medicine physician in 2024

524 Medicare Part D claims for 87 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Susan Feldt524
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium53 claims
  2. Amlodipine Besylate37 claims
  3. Albuterol Sulfate Hfa21 claims
  4. Carvedilol19 claims
  5. Furosemide16 claims
  6. Omeprazole16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

2 hospitals and group practices

  1. The University OF Chicago Medical CenterChicago, IL · Acute Care Hospitals4 of 5 stars
  2. University OF ChicagoChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Susan Feldt among 7,238 internal medicine physician records in Illinois

Susan Feldt is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 78% of them.

  • NPI issued2022 · 78% of these records are older, 18% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2022 · median 2003 among the 3,580 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jennifer AngelesChicago, IL 606371114945276
  2. Sameer Badlani, MDChicago, IL 606371699795302
  3. Kristine Bordenave, M.D.Chicago, IL 606371811009368
  4. Andrew DavisChicago, IL 606371275642167
  5. Hatim HassanChicago, IL 606371417970385
  6. Keiki Hinami, M.D.Chicago, IL 606371437136785
  7. David Liebovitz, MDChicago, IL 606371972564748
  8. Thomas Mason, M.D.Chicago, IL 606371730114505

Common questions

What is Susan Feldt's NPI number?

Susan Feldt's National Provider Identifier (NPI) is 1861137432, issued on Apr 28, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Susan Feldt located?

The NPPES record lists a practice address at 5841 S Maryland Ave # 7082, Chicago, IL, 60637. Phone: (773) 702-1447. Providers update this record themselves, so call before visiting.

How can I verify Susan Feldt's license?

NPPES lists Illinois license number 036174291, 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.

How much does Susan Feldt prescribe under Medicare Part D?

In 2024, Susan Feldt had 524 Medicare Part D claims for 87 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions 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.