Allison Patricia Rzepczynski, MD
Gastroenterology Physician · Elmhurst, IL
Allison Patricia Rzepczynski, MD is a gastroenterology physician with a practice address in Elmhurst, Illinois, and NPI 1649708975, issued on May 31, 2017. Check the license (Illinois 036152640, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Allison Patricia Rzepczynski
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 036152640 IL
125070546 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1200 S York St Ste 2000, Elmhurst, IL 60126
- Phone
- (331) 221-9003
- Enumerated
- May 31, 2017
- Record last updated
- Jul 26, 2023
- Medicare enrollment
- Enrolled (PECOS I20230628002255); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 1200 S York St Ste 2000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abraham, MDInternal Medicine Physician1982809356
- Robert Andersen, MDPediatrics Physician1588615637
- Ivana Asencio, MDObstetrics & Gynecology Physician1487231155
- Emily Barszcz, APN-CNPNurse Practitioner1407100381
- Judith Benka, NPPediatric Nurse Practitioner1063463115
- Taylor Comstock, PA-CSurgical Physician Assistant1649607953
Verify Allison Patricia Rzepczynski 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 036152640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average gastroenterology physician in 2024
339 Medicare Part D claims for 181 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Omeprazole70 claims
- Sod Sulf-Potass Sulf-Mag Sulf63 claims
- Pantoprazole Sodium41 claims
- Gavilyte-G26 claims
- Linzess22 claims
- Dicyclomine Hcl12 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Endeavor Health Medical GroupElmhurst, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allison Patricia Rzepczynski among 887 gastroenterology physician records in Illinois
Allison Patricia Rzepczynski, MD is one of 887 gastroenterology physician records with a practice address in Illinois. 85% 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 82% of them.
- NPI issued2017 · 82% of these records are older, 14% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2017 · median 2003 among the 643 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Elmhurst → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ashish Arora, MDElmhurst, IL 601261336157171
- Elizabeth Barczynski, MDElmhurst, IL 601261942250071
- Christopher Boutin, MDElmhurst, IL 601261760440259
- Michael Greenspan, MDElmhurst, IL 601261942520127
- Adelina Hung, MDElmhurst, IL 601261326300120
- Jason Kramer, M.D.Elmhurst, IL 601261366891491
- Shakthi Kumar, MDElmhurst, IL 601261881853596
- Atena Lodhi, MDElmhurst, IL 601261629367966
Common questions
What is Allison Patricia Rzepczynski, MD's NPI number?
Allison Patricia Rzepczynski, MD's National Provider Identifier (NPI) is 1649708975, issued on May 31, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Allison Patricia Rzepczynski, MD located?
The NPPES record lists a practice address at 1200 S York St Ste 2000, Elmhurst, IL, 60126. Phone: (331) 221-9003. Providers update this record themselves, so call before visiting.
How can I verify Allison Patricia Rzepczynski, MD's license?
NPPES lists Illinois license number 036152640, 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 Allison Patricia Rzepczynski, MD prescribe under Medicare Part D?
In 2024, Allison Patricia Rzepczynski, MD had 339 Medicare Part D claims for 181 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Allison Patricia Rzepczynski, MD's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. 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.