NPPES file of Aug 9, 2026

Stephen Damien Grill, M.D.

Gastroenterology Physician · Oakbrook Terrace, IL

Stephen Damien Grill, M.D. is a gastroenterology physician with a practice address in Oakbrook Terrace, Illinois, and NPI 1366559858, issued on Aug 23, 2006. Check the license (Illinois 036-057396, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366559858
Name
Stephen Damien Grill
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
036-057396 IL
Self-reported in NPPES; status is on the state search
Practice location
2 Transam Plaza Dr, Oakbrook Terrace, IL 60181
Phone
(630) 833-0653
Enumerated
Aug 23, 2006
Record last updated
Jan 14, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(630) 932-3437
Medicaid ID
036-057396 IL
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Verify Stephen Damien Grill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-057396
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Stephen Damien Grill among 887 gastroenterology physician records in Illinois

Stephen Damien Grill, M.D. 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 not. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 52% newer
  • In a Medicare fileNo · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2016 · 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).

5 gastroenterology physician records list a practice address in Oakbrook Terrace

They are 5 of the 282 NPPES records with a practice address in Oakbrook Terrace, and 887 gastroenterology physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. David Chua, MDOakbrook Terrace, IL 601811346241585
  2. Jennie Ng, M.D.Oakbrook Terrace, IL 601811063599744
  3. Matthew Smith, M.D.Oakbrook Terrace, IL 601811508973926
  4. Dhruva Tilwalli, MDOakbrook Terrace, IL 601811417912296
  5. Neha Kaiser, DOSycamore, IL 601781992110126
  6. Narumi O'Hara, MDSycamore, IL 601781689835928
  7. Amulya Reddy, D.O.Sycamore, IL 601781295114932
  8. Darran Moxon, MDSt Charles, IL 601751528044658

Common questions

What is Stephen Damien Grill, M.D.'s NPI number?

Stephen Damien Grill, M.D.'s National Provider Identifier (NPI) is 1366559858, issued on Aug 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Damien Grill, M.D. located?

The NPPES record lists a practice address at 2 Transam Plaza Dr, Oakbrook Terrace, IL, 60181. Phone: (630) 833-0653. Providers update this record themselves, so call before visiting.

How can I verify Stephen Damien Grill, M.D.'s license?

NPPES lists Illinois license number 036-057396, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.