Bob William, M.D.
Family Medicine Physician · Plainfield, IL
Bob William, M.D. is a family medicine physician with a practice address in Plainfield, Illinois, and NPI 1114111028, issued on Sep 4, 2007. Check the license (Illinois 036124475, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Bob William
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036124475 IL
Self-reported in NPPES; status is on the state search - Practice location
- 16519 S Rte 59, Plainfield, IL 60586
- Phone
- (630) 646-5020
- Enumerated
- Sep 4, 2007
- Record last updated
- Feb 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 646-5025
- Medicaid ID
- 0361244752 IL
- Medicare enrollment
- Enrolled (PECOS I20111003000407); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 16519 S Rte 59
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sanjeeb Khatua, M.D.Family Medicine Physician1770777658
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- Krishan Singh, DPMFoot & Ankle Surgery Podiatrist1609491604
Verify Bob William 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 036124475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% more Medicare Part D claims than the average family medicine physician in 2024
6,694 Medicare Part D claims for 394 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. 79 claims were for opioids.
Most prescribed
- Atorvastatin Calcium355 claims
- Levothyroxine Sodium222 claims
- Pantoprazole Sodium192 claims
- Metoprolol Succinate179 claims
- Amlodipine Besylate176 claims
- Montelukast Sodium169 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 MIPS final score for 2023 (Medicare payment program): 91.4 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).
Industry payments in 2024: $13.07
1 payment: food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Endeavor Health Medical GroupElmhurst, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bob William among 6,215 family medicine physician records in Illinois
Bob William, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2006 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 family medicine physician records list a practice address in Plainfield
They are 25 of the 1,198 NPPES records with a practice address in Plainfield, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Plainfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Aabha Beri, MDPlainfield, IL 605861508207507
- Phamela De Guzman, MDPlainfield, IL 605861568674844
- Ryan Fitzgerald, D.O.Plainfield, IL 605861346689411
- Mahwesh Javed, MDPlainfield, IL 605861710149224
- Vipuli Jayesinghe, M.D.Plainfield, IL 605861265673701
- Julie Jones, MDPlainfield, IL 605861598025298
- Sanjeeb Khatua, M.D.Plainfield, IL 605861770777658
- Shalini Kumar, MDPlainfield, IL 605861255909479
Common questions
What is Bob William, M.D.'s NPI number?
Bob William, M.D.'s National Provider Identifier (NPI) is 1114111028, issued on Sep 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bob William, M.D. located?
The NPPES record lists a practice address at 16519 S Rte 59, Plainfield, IL, 60586. Phone: (630) 646-5020. Providers update this record themselves, so call before visiting.
How can I verify Bob William, M.D.'s license?
NPPES lists Illinois license number 036124475, 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 Bob William, M.D. prescribe under Medicare Part D?
In 2024, Bob William, M.D. had 6,694 Medicare Part D claims for 394 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Bob William, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.4 of 100. 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.