William D. Cox, M.D.
Sports Medicine (Orthopaedic Surgery) Physician · Crystal Lake, IL
William D. Cox, M.D. is a sports medicine (orthopaedic surgery) physician with a practice address in Crystal Lake, Illinois, and NPI 1407928062, issued on Nov 15, 2006. Check the license (Illinois 036080933, 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 D. Cox
- Credential
- M.D.
- Primary taxonomy
- Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
- License number
- 036080933 IL
Self-reported in NPPES; status is on the state search - Practice location
- 420 N IL Route 31, Crystal Lake, IL 60012
- Phone
- (815) 356-5200
- Enumerated
- Nov 15, 2006
- Record last updated
- Oct 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (815) 356-5262
- Medicaid ID
- 036080933 IL
- Entity
- Type 1 · individual
8 nearest sports medicine (orthopaedic surgery) physician records → All 102 in Illinois → Look up another NPI →
Also registered at 420 N IL Route 31
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sam Biafora, M.D.Orthopaedic Hand Surgery Physician1205037991
- Laura Blumenkamp, PTPhysical Therapist1356608673
- Shelly Chamberlin, OTR/L, CHTOccupational Therapist1336335900
- Devin Chen, PA-CPhysician Assistant1174305312
- Staci Connery, P.T.Physical Therapist1932364338
- Brian Flanagan, M.D.Adult Reconstructive Orthopaedic Surgery Physician1336428010
Verify William D. Cox 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 036080933Check 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 D. Cox among 102 sports medicine (orthopaedic surgery) physician records in Illinois
William D. Cox, M.D. is one of 102 sports medicine (orthopaedic surgery) physician records with a practice address in Illinois. 89% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileNo · 89% of these records are
- In the CMS Doctors and Clinicians fileNo · 84% of these records are
- Record last updated2018 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sports Medicine (Orthopaedic Surgery) Physician providers in Illinois
There are 102 sports medicine (orthopaedic surgery) physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 102 in Illinois → Every provider in Crystal Lake → Sports Medicine (Orthopaedic Surgery) Physician nationwide →
The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes
- Robert Nixon, MDCrystal Lake, IL 600121821160516
- Savan Patel, MDCrystal Lake, IL 600121033422209
- Craig Cummins, M.D.Barrington, IL 600101588650006
- Joseph Krob, MDElk Grove Village, IL 600071639630197
- Daniel Kuesis, M.D.Elk Grove Village, IL 600071679573240
- Eugene Lopez, M.D.Elk Grove Village, IL 600071467452300
- Jeffrey Murray, M.D.Elk Grove Village, IL 600071518943018
- Sean Odell, MDElk Grove Village, IL 600071518981612
Common questions
What is William D. Cox, M.D.'s NPI number?
William D. Cox, M.D.'s National Provider Identifier (NPI) is 1407928062, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William D. Cox, M.D. located?
The NPPES record lists a practice address at 420 N IL Route 31, Crystal Lake, IL, 60012. Phone: (815) 356-5200. Providers update this record themselves, so call before visiting.
How can I verify William D. Cox, M.D.'s license?
NPPES lists Illinois license number 036080933, 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.