Theresa BoxdorferFNP
Nurse Practitioner, Family
2027 Medicare Advantage
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Medicare Advantage plans for St. Louis County, MO.
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Directory results See what each insurance company reports
The 72 Medicare Advantage plans we show for St. Louis County, MO in 2027
- 40 list Theresa
- 32 not listed

Aetna Medicare
13 plans list Theresa.
Aetna Medicare Eagle (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 1011 Bowles Ave, Ste 100, Fenton, MO, 63026
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 1011 Bowles Ave, Ste 100, Fenton, MO, 63026
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 1011 Bowles Ave, Ste 100, Fenton, MO, 63026
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 1011 Bowles Ave, Ste 100, Fenton, MO, 63026
This result applies to these offices. Other locations are not confirmed.
$0a month

UnitedHealthcare
10 plans list Theresa; 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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 120, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 125, Saint Louis, MO, 63128
- 1765 Old State Route 21, Arnold, MO, 63010
- 1895 Richardson Rd, Arnold, MO, 63010
- 3009 N Ballas Rd, Ste 323A, Saint Louis, MO, 63131
- 425 N New Ballas Rd, Ste 203, Saint Louis, MO, 63141
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 120, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 125, Saint Louis, MO, 63128
- 1765 Old State Route 21, Arnold, MO, 63010
- 1895 Richardson Rd, Arnold, MO, 63010
- 3009 N Ballas Rd, Ste 323A, Saint Louis, MO, 63131
- 425 N New Ballas Rd, Ste 203, Saint Louis, MO, 63141
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 120, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 125, Saint Louis, MO, 63128
- 1765 Old State Route 21, Arnold, MO, 63010
- 1895 Richardson Rd, Arnold, MO, 63010
- 3009 N Ballas Rd, Ste 323A, Saint Louis, MO, 63131
- 425 N New Ballas Rd, Ste 203, Saint Louis, MO, 63141
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 120, Saint Louis, MO, 63128
- 12639 Old Tesson Rd, Ste 125, Saint Louis, MO, 63128
- 1765 Old State Route 21, Arnold, MO, 63010
- 1895 Richardson Rd, Arnold, MO, 63010
- 3009 N Ballas Rd, Ste 323A, Saint Louis, MO, 63131
- 425 N New Ballas Rd, Ste 203, Saint Louis, MO, 63141
This result applies to these offices. Other locations are not confirmed.
$19a month

Humana
9 plans list Theresa; not listed on 9 other plans.
Humana Essentials Plus Giveback (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 12369 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
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:
- 12369 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Gold Choice H8145-126 (PFFS)
Source: Humana provider directory.
The source lists the clinician on this plan, but hasn't identified a covered office. Confirm your office before enrolling.
$0a monthHumana Total Complete (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 12369 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
This result applies to these offices. Other locations are not confirmed.
$0a month

Anthem Blue Cross and Blue Shield · Anthem HealthKeepers
5 plans list Theresa.
Anthem Medicare Advantage (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 12639 Old Tesson Rd, Saint Louis, MO, 63128
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:
- 12639 Old Tesson Rd, Saint Louis, MO, 63128
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:
- 12639 Old Tesson Rd, Saint Louis, MO, 63128
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:
- 12639 Old Tesson Rd, Saint Louis, MO, 63128
This result applies to these offices. Other locations are not confirmed.
$0a month

Wellcare
3 plans list Theresa; not listed on 3 other plans.
Wellcare Patriot Giveback Open (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
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:
- 12639 Old Tesson Rd, Ste 115, Saint Louis, MO, 63128
This result applies to these offices. Other locations are not confirmed.
$0a month

Devoted
Not listed on its 9 plans here. That isn't proof they're out of network.

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.
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 Theresa 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
- Aug 19, 2025
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Theresa Boxdorfer?
In St. Louis County, MO, 40 Medicare Advantage plans for 2027 list Theresa in provider data from Medicare.gov or the carrier, including Aetna Medicare Eagle (HMO-POS), Aetna Medicare Elite (PPO) and Aetna Medicare Elite Classic (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 Theresa Boxdorfer take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Theresa 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 Theresa Boxdorfer take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists Theresa on 10 Medicare Advantage plans for 2027 in St. Louis County, MO, including AARP Medicare Advantage CareFlex from UHC ST-6 (HMO-POS) and AARP Medicare Advantage Essentials from UHC ST-3 (HMO-POS). 1 other plan 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 UnitedHealthcare before you enroll.
Does Theresa Boxdorfer take Humana Medicare Advantage plans?
Humana's own provider directory lists Theresa on 9 Medicare Advantage plans for 2027 in St. Louis County, MO, including Humana Essentials Plus Giveback (HMO). 9 other plans did not return a listing in the search area. Confirm with the office or Humana before you enroll.
Where does Theresa Boxdorfer practice?
12639 Old Tesson Rd, Suite 115, Saint Louis, MO 63128.
How do I confirm Theresa is in my plan's network?
Call the member services number on your plan card and give them the NPI 1063566768, 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 Theresa Boxdorfer on 19 plans from Devoted, Essence Healthcare and HealthSpring 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.