William CoxMD
Orthopaedic Surgery, Sports Medicine
2027 Medicare Advantage
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Medicare Advantage plans for McHenry County, IL.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
The 39 Medicare Advantage plans we show for McHenry County, IL in 2027
- 1 lists William
- 38 not listed
Wellcare
1 plan lists William; not listed on 3 other plans.
Wellcare Meridian Dual Align (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 420 N Il Route 31, Crystal Lake, IL, 60012
This result applies to these offices. Other locations are not confirmed.
$0a month
Aetna Medicare · Aetna Medicare FIDE
Not listed on its 4 plans here. That isn't proof they're out of network.
Devoted
Not listed on its 8 plans here. That isn't proof they're out of network.
Humana
Not listed on its 8 plans here. That isn't proof they're out of network.
Molina Healthcare of Illinois
Not listed on its 1 plan here. That isn't proof they're out of network.
UnitedHealthcare
Not listed on its 10 plans here. That isn't proof they're out of network.
Zing Health
Not listed on its 4 plans here. That isn't proof they're out of network.
Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.
Can't find your plan?Tell us the plan you have, and a licensed Silverpath advisor will check whether William takes it. Free.
Original Medicare
Original Medicare status
Most Medicare Supplement (Medigap) policies have no provider network: they help pay Original Medicare's cost sharing where Medicare is accepted. Medicare SELECT policies can require network providers for full benefits. Ask the office whether they accept Medicare.
Medicare enrollment and assignment have not been verified here. Advantage directory results do not answer this question.
No opt-out record in this CMS file. CMS's file covers data through 2026-08-31. This does not establish Medicare enrollment, assignment, or whether the office accepts new Medicare patients.
CMS opt-out source · Data through 2026-08-31 · Reviewed Oct 25, 2026
Where they practice
2 practice locations
- NPI issued
- 2006
- Registry record updated
- Oct 19, 2018
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list William Cox?
In McHenry County, IL, 1 Medicare Advantage plan for 2027 lists William in provider data from Medicare.gov or the carrier, including Wellcare Meridian Dual Align (HMO D-SNP). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Networks can change during the year, so confirm with the office or the plan before you enroll.
Does William Cox take Wellcare Medicare Advantage plans?
Medicare.gov provider data lists William on one Medicare Advantage plan for 2027 in McHenry County, IL: Wellcare Meridian Dual Align (HMO D-SNP). 3 other plans did not return a listing in the search area. CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Wellcare before you enroll.
Does William Cox take Aetna Medicare Medicare Advantage plans?
The provider searches didn't return a listing for William on these 4 plans for 2027 in McHenry County, IL. Directories can lag, and a clinician can be in network at another office, so that isn't proof William is out of network. Ask the office or a Silverpath advisor to confirm.
Does William Cox take Devoted Medicare Advantage plans?
The provider searches didn't return a listing for William on these 8 plans for 2027 in McHenry County, IL. Directories can lag, and a clinician can be in network at another office, so that isn't proof William is out of network. Ask the office or a Silverpath advisor to confirm.
Where does William Cox practice?
2 locations, including 420 N Il Route 31, Crystal Lake, IL. All of them are listed on this page.
How do I confirm William is in my plan's network?
Call the member services number on your plan card and give them the NPI 1407928062, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
What patients see here today:
- Provider searches did not return a listing for William Cox on 35 plans from Aetna Medicare, Devoted, Humana, Molina Healthcare of Illinois, UnitedHealthcare and Zing Health in McHenry County, IL. Other offices are not confirmed; this isn't proof the practice is out of network.
Tell us which plans you take, or want to take, and we'll keep this page accurate and talk with you about reaching more Medicare patients and carriers.