Gregory R. Gambla, DO
Gastroenterology Physician · Elgin, IL
Gregory R. Gambla, DO is a gastroenterology physician with a practice address in Elgin, Illinois, and NPI 1801832167, issued on Jun 22, 2006. Check the license (Illinois 036098608, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gregory R. Gambla
- Credential
- DO
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036098608 IL
Self-reported in NPPES; status is on the state search - Practice location
- 745 Fletcher Dr, Elgin, IL 60123
- Phone
- (847) 888-1300
- Enumerated
- Jun 22, 2006
- Record last updated
- Feb 18, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (847) 888-1341
- Medicaid ID
- 036098608 IL
- Medicare enrollment
- Enrolled (PECOS I20061213000357); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 1990
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 745 Fletcher Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mari Anderson, C.R.N.F.A.Registered Nurse First Assistant1508048406
- Rachel Baer, MDSurgery Physician1437110707
- Richard Baley, M.D.Internal Medicine Physician1184693327
- Steven Carlson, FNP-CFamily Nurse Practitioner1568846343
- Jennifer Cerutti, MDUrology Physician1598976821
- Danel Eads, C.S.T.Surgical Technologist1679755573
Verify Gregory R. Gambla 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 036098608Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% more Medicare Part D claims than the average gastroenterology physician in 2024
1,471 Medicare Part D claims for 543 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Omeprazole382 claims
- Pantoprazole Sodium154 claims
- Sod Sulf-Potass Sulf-Mag Sulf120 claims
- Dicyclomine Hcl96 claims
- Peg 3350-Electrolyte67 claims
- Linzess64 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 practice group's MIPS final score for 2023 (Medicare payment program): 85.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,157.76
45 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Illinois Gastroenterology Group LLCElgin, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory R. Gambla among 887 gastroenterology physician records in Illinois
Gregory R. Gambla, DO 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
- Graduated1990 · median 2003 among the 643 with a school on file
- Record last updated2015 · 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 Elgin → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Omar Alsalman, MDElgin, IL 601231245636844
- Mary Dement, DOElgin, IL 601231619437738
- Jennifer Dorfmeister, M.D.Elgin, IL 601231710135876
- Sonia Godambe, M.D.Elgin, IL 601231093964116
- Tim Hossain, MDElgin, IL 601231154433266
- Sunil Joseph, MDElgin, IL 601231982716098
- William Levis, M.D.Elgin, IL 601231265512164
- Joseph Losurdo, MDElgin, IL 601231437261450
Common questions
What is Gregory R. Gambla, DO's NPI number?
Gregory R. Gambla, DO's National Provider Identifier (NPI) is 1801832167, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory R. Gambla, DO located?
The NPPES record lists a practice address at 745 Fletcher Dr, Elgin, IL, 60123. Phone: (847) 888-1300. Providers update this record themselves, so call before visiting.
How can I verify Gregory R. Gambla, DO's license?
NPPES lists Illinois license number 036098608, 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 Gregory R. Gambla, DO prescribe under Medicare Part D?
In 2024, Gregory R. Gambla, DO had 1,471 Medicare Part D claims for 543 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Gregory R. Gambla, DO's MIPS final score?
The 2023 MIPS final score is 85.1 of 100, reported for the practice group. 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.