Guillermo Leoz-CallizoMD
Psychiatry & Neurology, Psychiatry
2027 Medicare Advantage
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Medicare Advantage plans for Harris and Tarrant counties, TX.
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Directory results See what each insurance company reports
Listed on 36 plans so far
Some of Aetna Medicare, UnitedHealthcare, Wellcare, Wellpoint, KelseyCare Advantage, Baylor Scott & White Health Plan, Community Health Choice, Devoted, HealthSpring, Humana, MedCare Partners Health Plan of Texas, Molina Healthcare of Texas, Inc., ProCare Advantage, SCAN Health Plan and Verda Health Plan of Texas's 2027 plans in Harris and Tarrant counties, TX haven't been checked yet.
The 138 Medicare Advantage plans we show for Harris and Tarrant counties, TX in 2027
- 36 list Guillermo
- 54 not listed
- 48 not checked yet
Aetna Medicare
12 plans list Guillermo.
Aetna Medicare Eagle (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3509 Garth Rd, Baytown, TX, 77521
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:
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3509 Garth Rd, Baytown, TX, 77521
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:
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a month
9 more Aetna Medicare plans haven't been checked yet.
UnitedHealthcare
11 plans list Guillermo.
AARP Medicare Advantage from UHC TX-0009 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage from UHC TX-0015 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage from UHC TX-001P (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Patriot No Rx TX-MA01 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a month
11 more UnitedHealthcare plans haven't been checked yet.
Wellcare
5 plans list Guillermo.
Wellcare Simple (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare TexanPlus Classic Simple (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Superior HealthPlan Dual Access (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Superior HealthPlan Dual Liberty (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
This result applies to these offices. Other locations are not confirmed.
$0a month
4 more Wellcare plans haven't been checked yet.
Wellpoint
5 plans list Guillermo; not listed on 4 other plans.
Wellpoint Medicare Advantage Select 1 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
- 4301 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthWellpoint Dual Advantage Plus Select (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
- 4301 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthWellpoint Dual Advantage Select (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
- 4301 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthWellpoint Full Dual Advantage Select (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
- 4301 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a month
3 more Wellpoint plans haven't been checked yet.
KelseyCare Advantage
3 plans list Guillermo.
KelseyCare Advantage Core (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthKelseyCare Advantage Freedom (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a monthKelseyCare Advantage Signature (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1415 California St, Houston, TX, 77006
- 3509 Garth Rd, Baytown, TX, 77521
This result applies to these offices. Other locations are not confirmed.
$0a month
Baylor Scott & White Health Plan
Not checked yet.
Community Health Choice
Medicare.gov doesn't have provider data for these plans yet. We'll check again.
Devoted
Not listed on its 10 plans here. That isn't proof they're out of network.
HealthSpring
Not checked yet.
3 more HealthSpring plans haven't been checked yet.
Humana
Not checked yet.
10 more Humana plans haven't been checked yet.
MedCare Partners Health Plan of Texas
Not listed on its 3 plans here. That isn't proof they're out of network.
Molina Healthcare of Texas, Inc.
Not checked yet.
1 more Molina Healthcare of Texas, Inc. plan hasn't been checked yet.
ProCare Advantage
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.
Verda Health Plan of Texas
Not checked yet.
2 more Verda Health Plan of Texas plans haven't been 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 Guillermo 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
3 practice locations
- NPI issued
- 2014
- Registry record updated
- Feb 19, 2026
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Guillermo Leoz-Callizo?
In Harris and Tarrant counties, TX, 36 Medicare Advantage plans for 2027 list Guillermo in provider data from Medicare.gov or the carrier, including Aetna Medicare Eagle (PPO), Aetna Medicare Prime Care (HMO) and Aetna Medicare Signature (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 Guillermo Leoz-Callizo practice?
3 locations, including 1415 California St, Houston, TX. All of them are listed on this page.
How do I confirm Guillermo is in my plan's network?
Call the member services number on your plan card and give them the NPI 1528475845, 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 Harris and Tarrant counties, TX. 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.