Maria Theresa AmmermannNP
Nurse Practitioner, Family
2027 Medicare Advantage
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Medicare Advantage plans for Los Angeles County, CA.
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Directory results See what each insurance company reports
The 119 Medicare Advantage plans we show for Los Angeles County, CA in 2027
- 2 list Maria Theresa
- 117 not listed
Kaiser Permanente
2 plans list Maria Theresa; not listed on 1 other plan.
Kaiser Permanente Senior Advantage LA, Orange Co. (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 9353 Imperial Hwy, Downey, CA, 90242
This result applies to these offices. Other locations are not confirmed.
$0a monthKaiser Permanente Sr Advantage LA, Orange Value (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 9353 Imperial Hwy, Downey, CA, 90242
This result applies to these offices. Other locations are not confirmed.
$0a month
Aetna Medicare
Not listed on its 7 plans here. That isn't proof they're out of network.
AHF
Not listed on its 1 plan here. That isn't proof they're out of network.
Align Senior Care
Not listed on its 1 plan here. That isn't proof they're out of network.
Alignment Health Plan
Not listed on its 21 plans here. That isn't proof they're out of network.
Anthem Blue Cross · Anthem Blue Cross Partnership Plan
Not listed on its 12 plans here. That isn't proof they're out of network.
Astiva Health
Not listed on its 5 plans here. That isn't proof they're out of network.
Blue Shield of California
Not listed on its 7 plans here. That isn't proof they're out of network.
Champion Heath Plan
Not listed on its 9 plans here. That isn't proof they're out of network.
Clever Care Health Plan
Not listed on its 6 plans here. That isn't proof they're out of network.
Elite Health Plan, Inc.
Not listed on its 2 plans here. That isn't proof they're out of network.
Humana
Not listed on its 8 plans here. That isn't proof they're out of network.
Imperial Health Plan of California, Inc.
Not listed on its 4 plans here. That isn't proof they're out of network.
L.A. Care Health Plan
Not listed on its 1 plan here. That isn't proof they're out of network.
Molina Healthcare of California
Not listed on its 1 plan here. That isn't proof they're out of network.
SCAN Health Plan
Not listed on its 15 plans here. That isn't proof they're out of network.
UCLA Health Medicare Advantage Plan
Not listed on its 2 plans here. That isn't proof they're out of network.
UnitedHealthcare
Not listed on its 8 plans here. That isn't proof they're out of network.
VillageHealth
Not listed on its 1 plan here. That isn't proof they're out of network.
Wellcare
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.
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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 21, 2026
Where they practice
Practice location
- NPI issued
- 2007
- Registry record updated
- Dec 2, 2021
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Maria Theresa Ammermann?
In Los Angeles County, CA, 2 Medicare Advantage plans for 2027 list Maria Theresa in provider data from Medicare.gov or the carrier, including Kaiser Permanente Senior Advantage LA, Orange Co. (HMO) and Kaiser Permanente Sr Advantage LA, Orange Value (HMO). 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 Maria Theresa Ammermann take Kaiser Permanente Medicare Advantage plans?
Medicare.gov provider data lists Maria Theresa on 2 Medicare Advantage plans for 2027 in Los Angeles County, CA, including Kaiser Permanente Senior Advantage LA, Orange Co. (HMO) and Kaiser Permanente Sr Advantage LA, Orange Value (HMO). 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 Kaiser Permanente before you enroll.
Does Maria Theresa Ammermann take Aetna Medicare Medicare Advantage plans?
The provider searches didn't return a listing for Maria Theresa on these 7 plans for 2027 in Los Angeles County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof Maria Theresa is out of network. Ask the office or a Silverpath advisor to confirm.
Does Maria Theresa Ammermann take AHF Medicare Advantage plans?
The provider searches didn't return a listing for Maria Theresa on this plan for 2027 in Los Angeles County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof Maria Theresa is out of network. Ask the office or a Silverpath advisor to confirm.
Where does Maria Theresa Ammermann practice?
9353 Imperial Hwy, Downey, CA 90242.
How do I confirm Maria Theresa is in my plan's network?
Call the member services number on your plan card and give them the NPI 1750594131, 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 Maria Theresa Ammermann on 116 plans from Aetna Medicare, AHF, Align Senior Care, Alignment Health Plan, Anthem Blue Cross, Astiva Health, Blue Shield of California, Champion Heath Plan, Clever Care Health Plan, Elite Health Plan, Inc., Humana, Imperial Health Plan of California, Inc., L.A. Care Health Plan, Molina Healthcare of California, SCAN Health Plan, UCLA Health Medicare Advantage Plan, UnitedHealthcare, VillageHealth and Wellcare in Los Angeles County, CA. 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.