William Gros, M.D.
Specialist · La Grange, IL
William Gros, M.D. is a specialist with a practice address in La Grange, Illinois, and NPI 1316902919, issued on Apr 18, 2006. Check the license (Illinois 036062649, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Gros
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036062649 IL
Self-reported in NPPES; status is on the state search - Practice location
- 512 W Burlington Ave, La Grange, IL 60525
- Phone
- (630) 579-4801
- Enumerated
- Apr 18, 2006
- Entity
- Type 1 · individual
Also registered at 512 W Burlington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Guy Agostino, M.D.Family Medicine Physician1992769822
- John Anderson, O.D.Optometrist1164550596
- Demetrios Bobolos, LACAcupuncturist1851701668
- Devon James, D.C.Chiropractor1780954198
- Anjali Lyons, MSW, LCSWClinical Social Worker1639494180
- James Zotti, LACAcupuncturist1457898694
Verify William Gros in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036062649Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.8 times the Medicare Part D claims of the average specialist in 2024
7,364 Medicare Part D claims for 545 beneficiaries, against an average of 1,524 among the 12,477 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 151 claims were for opioids.
Most prescribed
- Atorvastatin Calcium453 claims
- Lisinopril369 claims
- Levothyroxine Sodium334 claims
- Metformin Hcl Er323 claims
- Amlodipine Besylate279 claims
- Simvastatin247 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.
Industry payments in 2024: $292.63
12 payments, mostly food and beverage; the largest payer was Novo Nordisk Inc. The 9,482 providers of this specialty with any payment received $4,756.65 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.
One hospital or facility affiliation
- Dupage Medical Group LtdLagrange, IL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
6 specialist records list a La Grange practice address
They are 6 of the 511 NPPES records with a La Grange practice address, and 1,419 specialist records in Illinois.
All 6 in La Grange → All 1,419 in Illinois → Every provider in La Grange →
Other specialist records in Illinois
- Sandra . Drewes, MDWinfield, IL1518056670
- Laketa AaronBellwood, IL1508508490
- Carrie Abbott-Walk, M.ED, DTDekalb, IL1841496171
- Suhair Abdel-Jalil, MDEvanston, IL1174572929
- Babak Abdollahshamshirsaz, M.D.Chicago, IL1447585765
- Syed Abdul-Aziz, MDBelleville, IL1114906005
- Steven Abern, M.D.Park Ridge, IL1922027424
- Richard AbramsChicago, IL1003992413
- Cherie AdamsEvanston, IL1063645810
- Robyn AdamsHerrin, IL1245216282
Common questions
What is William Gros, M.D.'s NPI number?
William Gros, M.D.'s National Provider Identifier (NPI) is 1316902919, issued on Apr 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Gros, M.D. located?
The NPPES record lists a practice address at 512 W Burlington Ave, La Grange, IL, 60525. Phone: (630) 579-4801. Providers update this record themselves, so call before visiting.
How can I verify William Gros, M.D.'s license?
NPPES lists Illinois license number 036062649, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does William Gros, M.D. prescribe under Medicare Part D?
In 2024, William Gros, M.D. had 7,364 Medicare Part D claims for 545 beneficiaries; the average among specialist prescribers was 1,524. Part D covers Medicare prescriptions only.
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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.