Creticus MarakMD
Internal Medicine, Critical Care Medicine
2027 Medicare Advantage
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Medicare Advantage plans for Denver County, CO.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
The 60 Medicare Advantage plans we show for Denver County, CO in 2027
- 13 list Creticus
- 47 not listed

Humana
9 plans list Creticus; not listed on 3 other plans.
Humana Essentials Plus Giveback (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Essentials Plus Giveback (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
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:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Value Choice (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$0a month

Aetna Medicare
4 plans list Creticus; not listed on 5 other plans.
Aetna Medicare Eagle (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1400 E Downing St, Tahlequah, OK, 74464
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Value Care (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1373 E Boone St, Ste 2300, Tahlequah, OK, 74464
This result applies to these offices. Other locations are not confirmed.
$18.40a month

Anthem Blue Cross and Blue Shield
Not listed on its 3 plans here. That isn't proof they're out of network.

Devoted
Not listed on its 11 plans here. That isn't proof they're out of network.

Elevate Medicare Advantage
Not listed on its 2 plans here. That isn't proof they're out of network.

HealthSpring
Not listed on its 4 plans here. That isn't proof they're out of network.

Kaiser Permanente
Not listed on its 6 plans here. That isn't proof they're out of network.

Perennial Advantage
Not listed on its 1 plan here. That isn't proof they're out of network.

Select Health
Not listed on its 2 plans 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.
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 Creticus 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
Practice location
- NPI issued
- 2009
- Registry record updated
- Jun 30, 2014
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Creticus Marak?
In Denver County, CO, 13 Medicare Advantage plans for 2027 list Creticus in provider data from Medicare.gov or the carrier, including Humana Essentials Plus Giveback (PPO) 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 Creticus Marak take Humana Medicare Advantage plans?
Humana's own provider directory lists Creticus on 9 Medicare Advantage plans for 2027 in Denver County, CO, including Humana Essentials Plus Giveback (PPO). 3 other plans did not return a listing in the search area. Confirm with the office or Humana before you enroll.
Does Creticus Marak take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Creticus on 4 Medicare Advantage plans for 2027 in Denver County, CO, including Aetna Medicare Eagle (PPO) and Aetna Medicare Signature (HMO). 5 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 Aetna Medicare before you enroll.
Does Creticus Marak take Anthem Blue Cross and Blue Shield Medicare Advantage plans?
The provider searches didn't return a listing for Creticus on these 3 plans for 2027 in Denver County, CO. Directories can lag, and a clinician can be in network at another office, so that isn't proof Creticus is out of network. Ask the office or a Silverpath advisor to confirm.
Where does Creticus Marak practice?
1400 Jackson St, Denver, CO 80206.
How do I confirm Creticus is in my plan's network?
Call the member services number on your plan card and give them the NPI 1215163514, 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 Creticus Marak on 39 plans from Anthem Blue Cross and Blue Shield, Devoted, Elevate Medicare Advantage, HealthSpring, Kaiser Permanente, Perennial Advantage, Select Health and UnitedHealthcare in Denver County, CO. 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.