Nicholas MayerDO
Internal Medicine, Nephrology
2027 Medicare Advantage
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Medicare Advantage plans for St. Louis County, MO and Madison 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
Listed on 55 plans so far
Some of Humana, Aetna Medicare, UnitedHealthcare, Anthem Blue Cross and Blue Shield, HealthSpring, Wellcare, Devoted, Essence Healthcare and Molina Healthcare of Illinois's 2027 plans in St. Louis County, MO and Madison County, IL haven't been checked yet.
The 96 Medicare Advantage plans we show for St. Louis County, MO and Madison County, IL in 2027
- 55 list Nicholas
- 17 not listed
- 24 not checked yet

Humana
18 plans list Nicholas.
Humana Essentials Plus Giveback (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
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:
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
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:
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
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:
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
This result applies to these offices. Other locations are not confirmed.
$0a month
6 more Humana plans haven't been checked yet.

Aetna Medicare · Aetna Medicare FIDE
13 plans list Nicholas.
Aetna Medicare Eagle (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
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:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
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:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
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:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
This result applies to these offices. Other locations are not confirmed.
$0a month
6 more Aetna Medicare plans haven't been checked yet.

UnitedHealthcare
10 plans list Nicholas; not listed on 1 other plan.
AARP Medicare Advantage CareFlex from UHC ST-6 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Essentials from UHC ST-3 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Patriot No Rx MO-MA01 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Extras from UHC ST-4 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
This result applies to these offices. Other locations are not confirmed.
$19a month
1 more UnitedHealthcare plan hasn't been checked yet.

Anthem Blue Cross and Blue Shield · Anthem HealthKeepers
5 plans list Nicholas.
Anthem Medicare Advantage (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Florissant, MO, 63031
- 2044 Madison Ave, Granite City, IL, 62040
- 1400 US Highway 61, Crystal Cty, MO, 63028
- 55 Nesbit Dr, Bonne Terre, MO, 63628
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:
- 1265 Graham Rd, Florissant, MO, 63031
- 2044 Madison Ave, Granite City, IL, 62040
- 1400 US Highway 61, Crystal Cty, MO, 63028
- 55 Nesbit Dr, Bonne Terre, MO, 63628
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:
- 1265 Graham Rd, Florissant, MO, 63031
- 2044 Madison Ave, Granite City, IL, 62040
- 1400 US Highway 61, Crystal Cty, MO, 63028
- 55 Nesbit Dr, Bonne Terre, MO, 63628
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:
- 1265 Graham Rd, Florissant, MO, 63031
- 2044 Madison Ave, Granite City, IL, 62040
- 1400 US Highway 61, Crystal Cty, MO, 63028
- 55 Nesbit Dr, Bonne Terre, MO, 63628
This result applies to these offices. Other locations are not confirmed.
$0a month

HealthSpring
5 plans list Nicholas.
HealthSpring Preferred (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
- 1400 US Highway 61, Ste G30, Crystal Cty, MO, 63028
This result applies to these offices. Other locations are not confirmed.
$0a monthHealthSpring Preferred Savings (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
- 1400 US Highway 61, Ste G30, Crystal Cty, MO, 63028
This result applies to these offices. Other locations are not confirmed.
$0a monthHealthSpring True Choice (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
- 1400 US Highway 61, Ste G30, Crystal Cty, MO, 63028
This result applies to these offices. Other locations are not confirmed.
$6a monthHealthSpring TotalCare (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
- 11155 Dunn Rd, Ste 211N, Saint Louis, MO, 63136
- 2044 Madison Ave, Ste 15, Granite City, IL, 62040
- 1400 US Highway 61, Ste G30, Crystal Cty, MO, 63028
This result applies to these offices. Other locations are not confirmed.
$18.40a month

Wellcare
4 plans list Nicholas; not listed on 2 other plans.
Wellcare Patriot Giveback Open (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Simple (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Simple Open (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Home State Health Dual Access Open (PPO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1265 Graham Rd, Ste 1, Florissant, MO, 63031
This result applies to these offices. Other locations are not confirmed.
$0a month
4 more Wellcare plans haven't been checked yet.

Devoted
Not checked yet.
6 more Devoted plans haven't been checked yet.

Essence Healthcare
Not listed on its 5 plans here. That isn't proof they're out of network.

Molina Healthcare of Illinois
Not checked yet.
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 Nicholas 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
- 2008
- Registry record updated
- May 22, 2024
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Nicholas Mayer?
In St. Louis County, MO and Madison County, IL, 55 Medicare Advantage plans for 2027 list Nicholas 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.
Where does Nicholas Mayer practice?
2 locations, including 1265 Graham Rd Ste 1, Florissant, MO. All of them are listed on this page.
How do I confirm Nicholas is in my plan's network?
Call the member services number on your plan card and give them the NPI 1104075597, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
Patients can use Silverpath to find practices and check plan networks in St. Louis County, MO and Madison County, IL. 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.