David Grganto, MD
Family Medicine Physician · Winfield, IL
David Grganto, MD is a family medicine physician with a practice address in Winfield, Illinois, and NPI 1679508766, issued on Jul 11, 2006. Check the license (Illinois 036084372, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Grganto
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036084372 IL
Self-reported in NPPES; status is on the state search - Practice location
- 25 Winfield Road, Winfield, IL 60190
- Phone
- (630) 260-0600
- Enumerated
- Jul 11, 2006
- Entity
- Type 1 · individual
Also registered at 25 Winfield Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Grganto 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 036084372Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
98% more Medicare Part D claims than the average family medicine physician in 2024
7,002 Medicare Part D claims for 691 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium499 claims
- Levothyroxine Sodium362 claims
- Rosuvastatin Calcium354 claims
- Amlodipine Besylate341 claims
- Lisinopril302 claims
- Metoprolol Succinate233 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 Medicare quality score for 2023: 94.1 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
- Central Dupage Physician GroupWheaton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Family Medicine Physician providers in Illinois
There are 6,215 family medicine physician records in Illinois.
Other family medicine physician records in Illinois
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- Muhammad AbbasAlton, IL1588341556
- Syed AbbasWest Dundee, IL1972733103
- Stefanie AbbottMaywood, IL1861137457
- Roann Abdeladl, MDEvanston, IL1437087103
- Ahmed Abdelkader, MDChicago, IL1659104230
- Guy Abderholden, MDAntioch, IL1902899792
Common questions
What is David Grganto, MD's NPI number?
David Grganto, MD's National Provider Identifier (NPI) is 1679508766, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Grganto, MD located?
The NPPES record lists a practice address at 25 Winfield Road, Winfield, IL, 60190. Phone: (630) 260-0600. Providers update this record themselves, so call before visiting.
How can I verify David Grganto, MD's license?
NPPES lists Illinois license number 036084372, 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 David Grganto, MD prescribe under Medicare Part D?
In 2024, David Grganto, MD had 7,002 Medicare Part D claims for 691 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is David Grganto, MD's Medicare quality score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.