Chase Rupprecht, DO
Allergy & Immunology (Internal Medicine) Physician · Chicago, IL
Chase Rupprecht, DO is an allergy & immunology (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1043738388, issued on Sep 7, 2017. Check the license (Illinois 036175626, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Chase Rupprecht
- Credential
- DO
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License number
- 036175626 IL
Self-reported in NPPES; status is on the state search - Practice location
- 251 E Huron St, Chicago, IL 60611
- Phone
- (312) 926-2000
- Enumerated
- Sep 7, 2017
- Record last updated
- Aug 7, 2025
- Entity
- Type 1 · individual
8 nearest allergy & immunology (internal medicine) physician records → All 22 in Illinois → Look up another NPI →
Also registered at 251 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ramez Abdalla, M.B., B. CHNeuroradiology Physician1407410392
- Dena Abdelhameed, PHARM.D.Nuclear Pharmacist1073954301
Verify Chase Rupprecht 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 036175626Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
410 Medicare Part D claims for 86 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Succinate25 claims
- Losartan Potassium22 claims
- Atorvastatin Calcium19 claims
- Levothyroxine Sodium17 claims
- Eliquis16 claims
- Alendronate Sodium15 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.
Chase Rupprecht among 22 allergy & immunology (internal medicine) physician records in Illinois
Chase Rupprecht, DO is one of 22 allergy & immunology (internal medicine) physician records with a practice address in Illinois. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 64% of them.
- NPI issued2017 · 64% of these records are older, 27% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X 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 (Internal Medicine) Physician providers in Illinois
There are 22 allergy & immunology (internal medicine) physician records in Illinois.
All 22 in Illinois → Every provider in Chicago → Allergy & Immunology (Internal Medicine) Physician nationwide →
The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes
- Sylvia Li, MDChicago, IL 606111508492463
- Anna MoshkovichChicago, IL 606111568045953
- Carol Saltoun, MDChicago, IL 606111104841691
- Chester Zeiss, M.D.Chicago, IL 606111154432532
- Sindhura Bandi, MDChicago, IL 606121891951208
- Christopher Greb, MDChicago, IL 606121134623895
- Mahera Husain, MDChicago, IL 606121659075596
- Elizabeth Kudlaty, MDChicago, IL 606121326543232
Common questions
What is Chase Rupprecht, DO's NPI number?
Chase Rupprecht, DO's National Provider Identifier (NPI) is 1043738388, issued on Sep 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Chase Rupprecht, DO located?
The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2000. Providers update this record themselves, so call before visiting.
How can I verify Chase Rupprecht, DO's license?
NPPES lists Illinois license number 036175626, 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 Chase Rupprecht, DO prescribe under Medicare Part D?
In 2024, Chase Rupprecht, DO had 410 Medicare Part D claims for 86 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. 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.