William C. Johnston, MD
Occupational Medicine Physician · Batavia, IL
William C. Johnston, MD is an occupational medicine physician with a practice address in Batavia, Illinois, and NPI 1578581716, issued on Jul 17, 2006. Check the license (Illinois 036-070736, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William C. Johnston
- Credential
- MD
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- 036-070736 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2500 W Fabyan Pkwy, Batavia, IL 60510
- Phone
- (630) 879-2110
- Enumerated
- Jul 17, 2006
- Record last updated
- Feb 21, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 036070736 IL
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 80 in Illinois → Look up another NPI →
Also registered at 2500 W Fabyan Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Colleen Costin, PSY.D.Clinical Psychologist1609339670
Verify William C. Johnston 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 036-070736Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William C. Johnston among 80 occupational medicine physician records in Illinois
William C. Johnston, MD is one of 80 occupational medicine physician records with a practice address in Illinois. 28% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 61% newer
- In a Medicare fileNo · 28% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2017 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in Illinois
There are 80 occupational medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 80 in Illinois → Every provider in Batavia → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Charles Woodward, M.D.Aurora, IL 605061598987463
- William Zander, D.O.Aurora, IL 605061518038488
- Sabrina Rajendran, M.D.Downers Grove, IL 605151023118346
- Osama Ramsey, M.D.La Grange Highlands, IL 605251568672046
- Jayson TiuLa Grange Highlands, IL 605251194189985
- Matthew Neu, M.D.Montgomery, IL 605381003025248
- William Roggenkamp, M.D.Montgomery, IL 605381396954541
- Emil Vancura, M.D.Riverside, IL 605461013123769
Common questions
What is William C. Johnston, MD's NPI number?
William C. Johnston, MD's National Provider Identifier (NPI) is 1578581716, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William C. Johnston, MD located?
The NPPES record lists a practice address at 2500 W Fabyan Pkwy, Batavia, IL, 60510. Phone: (630) 879-2110. Providers update this record themselves, so call before visiting.
How can I verify William C. Johnston, MD's license?
NPPES lists Illinois license number 036-070736, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.