William R. Najem, O.D.
Optometrist · Kenilworth, IL
William R. Najem, O.D. is an optometrist with a practice address in Kenilworth, Illinois, and NPI 1053480038, issued on Nov 6, 2006. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William R. Najem
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- Practice location
- 420 Green Bay RD, Kenilworth, IL 60043
- Phone
- (847) 853-1111
- Enumerated
- Nov 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (847) 853-7400
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,697 in Illinois → Look up another NPI →
Verify William R. Najem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average optometrist in 2024
24 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 58% of 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: $43.55
2 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 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.
William R. Najem among 2,697 optometrist records in Illinois
William R. Najem, O.D. is one of 2,697 optometrist records with a practice address in Illinois. 71% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2007 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 optometrist record lists a practice address in Kenilworth
They are 1 of the 67 NPPES records with a practice address in Kenilworth, and 2,697 optometrist records in Illinois.
All 2,697 in Illinois → Every provider in Kenilworth → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Barbara McCaskey, O.D.Lake Bluff, IL 600441235405366
- Diana Yin, ODLake Bluff, IL 600441023501483
- Kelly Ball, O.D.Mettawa, IL 600451861444069
- Tricia Danz, O.D.Lake Forest, IL 600451316917149
- Dawn Kaplan, O.D.Mettawa, IL 600451922123462
- James Doherty, O.D.Lindenhurst, IL 600461427001718
- Nae Hyon Kwon, O.D.Lindenhurst, IL 600461306886932
- Thomas Balda, ODLake Zurich, IL 600471396820858
Common questions
What is William R. Najem, O.D.'s NPI number?
William R. Najem, O.D.'s National Provider Identifier (NPI) is 1053480038, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William R. Najem, O.D. located?
The NPPES record lists a practice address at 420 Green Bay RD, Kenilworth, IL, 60043. Phone: (847) 853-1111. Providers update this record themselves, so call before visiting.
How can I verify William R. Najem, O.D.'s license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does William R. Najem, O.D. prescribe under Medicare Part D?
In 2024, William R. Najem, O.D. had 24 Medicare Part D claims for 13 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
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.