Mary Biglin, MD
Gastroenterology Physician · Chicago, IL
Mary Biglin, MD is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1053840991, issued on Jun 5, 2017. Check the license (Illinois 036-152809, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mary Biglin
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 036-152809 IL
125070824 IL
Self-reported in NPPES; status is on the state search - Practice location
- 840 S Wood St, Chicago, IL 60612
- Phone
- (312) 996-6651
- Enumerated
- Jun 5, 2017
- Record last updated
- Jul 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20240116002659); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 840 S Wood St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephanie BrowneStudent in an Organized Health Care Education/Training Program1427997154
Verify Mary Biglin 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 036-152809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
72% fewer Medicare Part D claims than the average gastroenterology physician in 2024
226 Medicare Part D claims for 111 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Omeprazole70 claims
- Gavilyte-G41 claims
- Pantoprazole Sodium13 claims
- Sod Sulf-Potass Sulf-Mag Sulf11 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
- Rush University Medical GroupChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
Other gastroenterology physician records in Illinois
- Abdul Aadam, M.D.Chicago, IL1013038744
- Richard Aaronson, M.D.Olympia Fields, IL1578520656
- Abdelhai Abdelqader, MDMaywood, IL1073931127
- Mustafa Abdul-Hussein, MDMattoon, IL1972759173
- Abdullah AbdussalamDes Plaines, IL1932442613
- Ayokunle Abegunde, M.D.Maywood, IL1194031435
- Majd Aboona, MDChicago, IL1386347789
- James Abraham, MDNaperville, IL1427276732
- Rana Abraham, M.D., M.S.Chicago, IL1437318516
- Frida Abrahamian, MDChicago, IL1447274279
Common questions
What is Mary Biglin, MD's NPI number?
Mary Biglin, MD's National Provider Identifier (NPI) is 1053840991, issued on Jun 5, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mary Biglin, MD located?
The NPPES record lists a practice address at 840 S Wood St, Chicago, IL, 60612. Phone: (312) 996-6651. Providers update this record themselves, so call before visiting.
How can I verify Mary Biglin, MD's license?
NPPES lists Illinois license number 036-152809, 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 Mary Biglin, MD prescribe under Medicare Part D?
In 2024, Mary Biglin, MD had 226 Medicare Part D claims for 111 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.