Susan J. Erlenborn, M.D.
Internal Medicine Physician · Chicago, IL
Susan J. Erlenborn, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1265524656, issued on Sep 29, 2006. Check the license (Illinois 036-083283, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Susan J. Erlenborn
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-083283 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3219 W. Carroll Avenue, Chicago, IL 60624
- Phone
- (872) 588-3000
- Enumerated
- Sep 29, 2006
- Record last updated
- Mar 12, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141120001459); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1989
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Susan J. Erlenborn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-083283Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
169 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Atorvastatin Calcium14 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.
Bills Medicare through one group practice
- Lawndale Christian Health CenterChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan J. Erlenborn among 7,238 internal medicine physician records in Illinois
Susan J. Erlenborn, M.D. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1989 · median 2003 among the 3,580 with a school on file
- Record last updated2015 · 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.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
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- James Hwang, M.D.Chicago, IL 606241134489446
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Common questions
What is Susan J. Erlenborn, M.D.'s NPI number?
Susan J. Erlenborn, M.D.'s National Provider Identifier (NPI) is 1265524656, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan J. Erlenborn, M.D. located?
The NPPES record lists a practice address at 3219 W. Carroll Avenue, Chicago, IL, 60624. Phone: (872) 588-3000. Providers update this record themselves, so call before visiting.
How can I verify Susan J. Erlenborn, M.D.'s license?
NPPES lists Illinois license number 036-083283, 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 J. Erlenborn, M.D. prescribe under Medicare Part D?
In 2024, Susan J. Erlenborn, M.D. had 169 Medicare Part D claims for 24 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.