Cynthia CastilloMD
Internal Medicine
2027 Medicare Advantage
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Medicare Advantage plans for Bexar County, TX.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
The 91 Medicare Advantage plans we show for Bexar County, TX in 2027
- 73 list Cynthia
- 18 not listed

Humana
22 plans list Cynthia.
Humana 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 Gold Plus H0028-030 (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthHumana Gold Plus H4461-058 (HMO)
Source: Humana provider directory.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
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:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a month

UnitedHealthcare
12 plans list Cynthia.
AARP Medicare Advantage Essentials from UHC TX-21 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Extras from UHC TX-28 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Giveback from UHC TX-40 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Patriot No Rx TX-MA03 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a month

Aetna Medicare
11 plans list Cynthia.
Aetna Medicare Eagle (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Prime Care (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature Extra (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature Extra (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a month

Devoted
10 plans list Cynthia.
DEVOTED CORE 003 TX (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED GIVEBACK 021 TX (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED GIVEBACK EXTRAS 116 TX (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
This result applies to these offices. Other locations are not confirmed.
$0a monthDEVOTED MA ONLY 020 TX (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
This result applies to these offices. Other locations are not confirmed.
$0a month

Wellpoint
9 plans list Cynthia.
Wellpoint Medicare Advantage 2 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthWellpoint Medicare Advantage Select (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthWellpoint Chronic Care (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthWellpoint Chronic Care Select (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a month

HealthSpring
6 plans list Cynthia.
HealthSpring Courage (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
This result applies to these offices. Other locations are not confirmed.
$0a monthHealthSpring Preferred (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
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:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
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:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
- 11823 Culebra Rd, Ste 105, San Antonio, TX, 78253
This result applies to these offices. Other locations are not confirmed.
$0a month

Wellcare
2 plans list Cynthia; not listed on 4 other plans.
Wellcare Patriot Simple (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Superior HealthPlan Dual Reserve Value (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$0a month

Molina Healthcare of Texas, Inc.
1 plan lists Cynthia.
Molina Medicare Complete Care Plus (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2833 Babcock Rd, Ste 203, San Antonio, TX, 78229
This result applies to these offices. Other locations are not confirmed.
$6.30a month

Alignment Health Plan
Not listed on its 6 plans here. That isn't proof they're out of network.

Clover Health
Not listed on its 2 plans here. That isn't proof they're out of network.

Community First
Not listed on its 2 plans here. That isn't proof they're out of network.

SCAN Health Plan
Not listed on its 4 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 Cynthia 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 23, 2026
Where they practice
2 practice locations
- NPI issued
- 2010
- Registry record updated
- Jan 25, 2023
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Cynthia Castillo?
In Bexar County, TX, 73 Medicare Advantage plans for 2027 list Cynthia in provider data from Medicare.gov or the carrier, including Humana Gold Choice H8145-126 (PFFS), Humana Gold Plus H0028-030 (HMO) and Humana Gold Plus H4461-058 (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 Cynthia Castillo take Humana Medicare Advantage plans?
Humana's own provider directory lists Cynthia on 22 Medicare Advantage plans for 2027 in Bexar County, TX, including Humana Gold Choice H8145-126 (PFFS) and Humana Gold Plus H0028-030 (HMO). Confirm with the office or Humana before you enroll.
Does Cynthia Castillo take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists Cynthia on 12 Medicare Advantage plans for 2027 in Bexar County, TX, including AARP Medicare Advantage Essentials from UHC TX-21 (HMO-POS) and AARP Medicare Advantage Extras from UHC TX-28 (HMO-POS). 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 Cynthia Castillo take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Cynthia on 11 Medicare Advantage plans for 2027 in Bexar County, TX, including Aetna Medicare Eagle (PPO) and Aetna Medicare Prime Care (HMO). 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.
Where does Cynthia Castillo practice?
2 locations, including 4502 Medical Dr, San Antonio, TX. All of them are listed on this page.
How do I confirm Cynthia is in my plan's network?
Call the member services number on your plan card and give them the NPI 1457671018, 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 Cynthia Castillo on 14 plans from Alignment Health Plan, Clover Health, Community First and SCAN Health Plan in Bexar County, TX. 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.