John ErnzenMD
Psychiatry & Neurology, Psychiatry
2027 Medicare Advantage
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Medicare Advantage plans for Cook County, IL.
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Directory results See what each insurance company reports
The 64 Medicare Advantage plans we show for Cook County, IL in 2027
- 37 list John
- 27 not listed
Humana
12 plans list John; not listed on 1 other plan.
Humana Essentials Plus Giveback (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 4840 N Marine Dr, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Total Complete (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 4840 N Marine Dr, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana USAA Honor Giveback (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 4840 N Marine Dr, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana USAA Honor Giveback (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 4840 N Marine Dr, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a month
UnitedHealthcare
10 plans list John.
AARP Medicare Advantage Essentials from UHC IL-8 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 850 W Lawrence Ave, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Extras from UHC IL-9 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 850 W Lawrence Ave, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage from UHC IL-2 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 850 W Lawrence Ave, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage from UHC IL-5 (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 850 W Lawrence Ave, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a month
Devoted
8 plans list John.
DEVOTED CHOICE 001 IL (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED CHOICE 010 IL (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED CORE 001 IL (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED GIVEBACK 003 IL (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
This result applies to these offices. Other locations are not confirmed.
$0a month
Zing Health
4 plans list John; not listed on 3 other plans.
Zing Select Care IL (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
- 1431 Opus Pl, Ste 110, Downers Grove, IL, 60515
This result applies to these offices. Other locations are not confirmed.
$0a monthZing Select Diabetes & Heart Complete IL (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
- 1431 Opus Pl, Ste 110, Downers Grove, IL, 60515
This result applies to these offices. Other locations are not confirmed.
$0a monthZing Select Diabetes & Heart IL (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
- 1431 Opus Pl, Ste 110, Downers Grove, IL, 60515
This result applies to these offices. Other locations are not confirmed.
$0a monthZing Select Dialysis IL (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 555 Wilson Ln, Des Plaines, IL, 60016
- 1431 Opus Pl, Ste 110, Downers Grove, IL, 60515
This result applies to these offices. Other locations are not confirmed.
$0a month
Blue Cross and Blue Shield of IL, NM
1 plan lists John.
Blue Cross Medicare Advantage Basic (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 4840 N Marine Dr, Chicago, IL, 60640
- 555 Wilson Ln, Des Plaines, IL, 60016
This result applies to these offices. Other locations are not confirmed.
$29a month
Molina Healthcare of Illinois
1 plan lists John.
Molina Medicare Complete Care Plus (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
This result applies to these offices. Other locations are not confirmed.
$0a month
Wellcare
1 plan lists John; not listed on 5 other plans.
Wellcare Meridian Dual Align (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 4720 N Clarendon Ave, Chicago, IL, 60640
- 4840 N Marine Dr, Chicago, IL, 60640
- 555 Wilson Ln, Des Plaines, IL, 60016
This result applies to these offices. Other locations are not confirmed.
$0a month
Aetna Medicare · Aetna Medicare FIDE
Not listed on its 9 plans here. That isn't proof they're out of network.
Essence Healthcare
Not listed on its 4 plans here. That isn't proof they're out of network.
HealthSpring
Not listed on its 5 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 John 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
4 practice locations
- NPI issued
- 2015
- Registry record updated
- May 27, 2022
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list John Ernzen?
In Cook County, IL, 37 Medicare Advantage plans for 2027 list John in provider data from Medicare.gov or the carrier, including Humana Essentials Plus Giveback (HMO), Humana Total Complete (HMO) and Humana USAA Honor Giveback (PPO). 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 John Ernzen take Humana Medicare Advantage plans?
Humana's own provider directory lists John on 12 Medicare Advantage plans for 2027 in Cook County, IL, including Humana Essentials Plus Giveback (HMO) and Humana Total Complete (HMO). 1 other plan did not return a listing in the search area. Confirm with the office or Humana before you enroll.
Does John Ernzen take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists John on 10 Medicare Advantage plans for 2027 in Cook County, IL, including AARP Medicare Advantage Essentials from UHC IL-8 (HMO-POS) and AARP Medicare Advantage Extras from UHC IL-9 (HMO-POS). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or UnitedHealthcare before you enroll.
Does John Ernzen take Devoted Medicare Advantage plans?
Medicare.gov provider data lists John on 8 Medicare Advantage plans for 2027 in Cook County, IL, including DEVOTED CHOICE 001 IL (PPO) and DEVOTED CHOICE 010 IL (PPO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Devoted before you enroll.
Where does John Ernzen practice?
4 locations, including 225 E Chicago Ave, Chicago, IL. All of them are listed on this page.
How do I confirm John is in my plan's network?
Call the member services number on your plan card and give them the NPI 1346615663, 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 John Ernzen on 18 plans from Aetna Medicare, Essence Healthcare and HealthSpring in Cook 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.