Niraj K. Ajmere, M.D.
Gastroenterology Physician · Lisle, IL
Niraj K. Ajmere, M.D. is a gastroenterology physician with a practice address in Lisle, Illinois, and NPI 1558309856, issued on Jun 2, 2006. Check the license (Illinois 036119583, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Niraj K. Ajmere
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036119583 IL
Self-reported in NPPES; status is on the state search - Practice location
- 430 Warrenville RD Ste 310, Lisle, IL 60532
- Phone
- (630) 717-2600
- Enumerated
- Jun 2, 2006
- Record last updated
- Jan 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080630000554); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 430 Warrenville RD Ste 310
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brittany Aukett, PAPhysician Assistant1770128175
- Rachel Benecke, APNFamily Nurse Practitioner1699281592
- Marc Brand, M.D.Colon & Rectal Surgery Physician1184799967
- Steven Brandes, M.D.Urology Physician1255359899
- Jennifer Buening, APN, FNP-CNurse Practitioner1255053724
- Laura Butler, PTPhysical Therapist1780794073
Verify Niraj K. Ajmere 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 036119583Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average gastroenterology physician in 2024
971 Medicare Part D claims for 360 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Omeprazole226 claims
- Pantoprazole Sodium121 claims
- Gavilyte-G96 claims
- Famotidine73 claims
- Peg 3350-Electrolyte65 claims
- Peg-3350 And Electrolytes40 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
- Dupage Medical Group LtdSchaumburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Niraj K. Ajmere among 887 gastroenterology physician records in Illinois
Niraj K. Ajmere, 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. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2002 · median 2003 among the 643 with a school on file
- Record last updated2021 · 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 Lisle → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Eugene Chang, MDBurr Ridge, IL 605271346302890
- Sujit Janardhan, M.D., PH. D.Burr Ridge, IL 605271902062037
- Nancy Reau, MDBurr Ridge, IL 605271164585683
- Suriya Sastri, M.D.Willowbrook, IL 605271316904816
- Carol Semrad, MDBurr Ridge, IL 605271871656389
- Irving Waxman, MDBurr Ridge, IL 605271487717906
- Stuart Issleib, MDLa Grange Highlands, IL 605251497740393
- Rafi Ali, M.D.Naperville, IL 605401437136454
Common questions
What is Niraj K. Ajmere, M.D.'s NPI number?
Niraj K. Ajmere, M.D.'s National Provider Identifier (NPI) is 1558309856, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Niraj K. Ajmere, M.D. located?
The NPPES record lists a practice address at 430 Warrenville RD Ste 310, Lisle, IL, 60532. Phone: (630) 717-2600. Providers update this record themselves, so call before visiting.
How can I verify Niraj K. Ajmere, M.D.'s license?
NPPES lists Illinois license number 036119583, 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 Niraj K. Ajmere, M.D. prescribe under Medicare Part D?
In 2024, Niraj K. Ajmere, M.D. had 971 Medicare Part D claims for 360 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.