William A. Cook, M.D.
Urology Physician · Ringwood, IL
William A. Cook, M.D. is a urology physician with a practice address in Ringwood, Illinois, and NPI 1740626514, issued on May 20, 2013. Check the license (Illinois 036043382, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William A. Cook
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 036043382 IL
Self-reported in NPPES; status is on the state search - Practice location
- 6318 Barnard Mill RD, Ringwood, IL 60072
- Phone
- (815) 354-3451
- Enumerated
- May 20, 2013
- Record last updated
- May 20, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 036043382 IL
- Entity
- Type 1 · individual
8 nearest urology physician records → All 629 in Illinois → Look up another NPI →
Verify William A. Cook 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 036043382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average urology physician in 2024
41 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
William A. Cook among 629 urology physician records in Illinois
William A. Cook, M.D. is one of 629 urology physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 54% of these records are
- Record last updated2013 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Illinois
There are 629 urology physician records in Illinois.
The 8 urology physician records with the nearest ZIP codes
- Israel Berger, M.D.Skokie, IL 600761568482214
- Mark Brandt, MDPark Ridge, IL 600681942248794
- Thomas Cottrell, M.D.Park Ridge, IL 600681003812934
- Edward Diaz, M.D.Park Ridge, IL 600681922274620
- Robert Kaplinsky, MDPark Ridge, IL 600681982643235
- John Milner, MDSkokie, IL 600761164589776
- David Mutchnik, M.D.Skokie, IL 600761417917006
- Steven Mutchnik, M.D.Skokie, IL 600761427019611
Common questions
What is William A. Cook, M.D.'s NPI number?
William A. Cook, M.D.'s National Provider Identifier (NPI) is 1740626514, issued on May 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is William A. Cook, M.D. located?
The NPPES record lists a practice address at 6318 Barnard Mill RD, Ringwood, IL, 60072. Phone: (815) 354-3451. Providers update this record themselves, so call before visiting.
How can I verify William A. Cook, M.D.'s license?
NPPES lists Illinois license number 036043382, 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 William A. Cook, M.D. prescribe under Medicare Part D?
In 2024, William A. Cook, M.D. had 41 Medicare Part D claims; the average among urology physician prescribers was 1,340. 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.