Karen Chang-ChenMD
Internal Medicine, Endocrinology, Diabetes & Metabolism
2027 Medicare Advantage
Check your plan
Medicare Advantage plans for St. Louis County, MO.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
The 72 Medicare Advantage plans we show for St. Louis County, MO in 2027
- 48 list Karen
- 24 not listed
Humana
18 plans list Karen.
Humana Essentials Plus Giveback (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Essentials Plus Giveback (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Full Access (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Full Access (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a month
Aetna Medicare
13 plans list Karen.
Aetna Medicare Eagle (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Elite (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Elite Classic (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Elite Classic Extra (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a month
Devoted
9 plans list Karen.
DEVOTED CORE 001 MO (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
- 224 S Woods Mill Rd, Ste 480, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED GIVEBACK 002 MO (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
- 224 S Woods Mill Rd, Ste 480, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED GIVEBACK EXTRAS 028 MO (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
- 224 S Woods Mill Rd, Ste 480, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED C-SNP ENHANCED 015 MO (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
- 224 S Woods Mill Rd, Ste 480, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a month
Anthem Blue Cross and Blue Shield · Anthem HealthKeepers
5 plans list Karen.
Anthem Medicare Advantage (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthAnthem Veteran (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthAnthem Chronic Care (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthAnthem Full Dual Advantage (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a month
Wellcare
3 plans list Karen; not listed on 3 other plans.
Wellcare Simple (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Home State Health Dual Access (HMO-POS D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Home State Health Dual Reserve (HMO-POS D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 224 S Woods Mill Rd, Ste 480S, Chesterfield, MO, 63017
This result applies to these offices. Other locations are not confirmed.
$18.40a month
Essence Healthcare
Not listed on its 5 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.
UnitedHealthcare
Not listed on its 11 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 Karen 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
- 2007
- Registry record updated
- Jul 28, 2020
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Karen Chang-Chen?
In St. Louis County, MO, 48 Medicare Advantage plans for 2027 list Karen in provider data from Medicare.gov or the carrier, including Humana Essentials Plus Giveback (HMO) and Humana Full Access (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 Karen Chang-Chen take Humana Medicare Advantage plans?
Humana's own provider directory lists Karen on 18 Medicare Advantage plans for 2027 in St. Louis County, MO, including Humana Essentials Plus Giveback (HMO). Confirm with the office or Humana before you enroll.
Does Karen Chang-Chen take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Karen on 13 Medicare Advantage plans for 2027 in St. Louis County, MO, including Aetna Medicare Eagle (HMO-POS) and Aetna Medicare Elite (PPO). 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 Karen Chang-Chen take Devoted Medicare Advantage plans?
Medicare.gov provider data lists Karen on 9 Medicare Advantage plans for 2027 in St. Louis County, MO, including DEVOTED CORE 001 MO (HMO) and DEVOTED GIVEBACK 002 MO (HMO). 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 Karen Chang-Chen practice?
224 S Woods Mill Rd Ste 480s, Chesterfield, MO 63017.
How do I confirm Karen is in my plan's network?
Call the member services number on your plan card and give them the NPI 1508916495, 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 Karen Chang-Chen on 21 plans from Essence Healthcare, HealthSpring and UnitedHealthcare in St. Louis County, MO. 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.