Eugenia L. Hahn, M.D.
Allergy & Immunology Physician · Chicago, IL
Eugenia L. Hahn, M.D. is an allergy & immunology physician with a practice address in Chicago, Illinois, and NPI 1285640458, issued on Jul 31, 2006. Check the license (Illinois 036-116269, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Eugenia L. Hahn
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 036-116269 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1801 W Taylor St Ste 3C, Chicago, IL 60612
- Phone
- (312) 996-2740
- Enumerated
- Jul 31, 2006
- Record last updated
- Dec 9, 2022
- Fax
- (312) 996-3896
- Medicare enrollment
- Enrolled (PECOS I20061214000349); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2001
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 162 in Illinois → Look up another NPI →
Also registered at 1801 W Taylor St Ste 3C
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anna Duchnowska, DNP, APRN, ACNP-BCAcute Care Nurse Practitioner1356942528
- Quinn Hosler, MDPulmonary Disease Physician1225665656
- Mark McCauley, M.D., PH.D.Cardiovascular Disease Physician1588819965
- Vrunda Patel, DNP, FNP-BCFamily Nurse Practitioner1891395745
- Vanessa Rowe, APRNFamily Nurse Practitioner1225707920
Verify Eugenia L. Hahn 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 036-116269Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average allergy & immunology physician in 2024
819 Medicare Part D claims for 69 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Xolair104 claims
- Azelastine Hcl92 claims
- Montelukast Sodium76 claims
- Fluticasone Propionate73 claims
- Dupixent Pen65 claims
- Albuterol Sulfate Hfa62 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
- The Board OF Trustees OF The University OF IllinoisChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eugenia L. Hahn among 162 allergy & immunology physician records in Illinois
Eugenia L. Hahn, M.D. is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2001 · median 2001 among the 114 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Illinois
There are 162 allergy & immunology physician records in Illinois.
All 162 in Illinois → Every provider in Chicago → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Afia Adu-Gyamfi, MDChicago, IL 606121245961309
- Anita Gewurz, M.D.Chicago, IL 606121841223609
- Matthew Goodsmith, MDChicago, IL 606121568043909
- Giselle Mosnaim, M.D.Chicago, IL 606121679501571
- Sharmilee Nyenhuis, M.D.Chicago, IL 606121760546469
- Andrea Pappalardo Wlochowicz, MDChicago, IL 606121609065895
- Amanda Salih, MD, MPHChicago, IL 606121861808503
- Kathy Sonenthal, M.D.Chicago, IL 606121265452940
Common questions
What is Eugenia L. Hahn, M.D.'s NPI number?
Eugenia L. Hahn, M.D.'s National Provider Identifier (NPI) is 1285640458, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eugenia L. Hahn, M.D. located?
The NPPES record lists a practice address at 1801 W Taylor St Ste 3C, Chicago, IL, 60612. Phone: (312) 996-2740. Providers update this record themselves, so call before visiting.
How can I verify Eugenia L. Hahn, M.D.'s license?
NPPES lists Illinois license number 036-116269, 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 Eugenia L. Hahn, M.D. prescribe under Medicare Part D?
In 2024, Eugenia L. Hahn, M.D. had 819 Medicare Part D claims for 69 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.