Patrick KooMD
Internal Medicine, Gastroenterology
2027 Medicare Advantage
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Medicare Advantage plans for Orange County, CA.
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 31 Medicare Advantage plans for 2027
Carrier directories and Medicare.gov provider data list Patrick on these plans. Review each plan's covered offices before enrolling. One directory didn't answer this time; we'll try it again.
The 106 Medicare Advantage plans we show for Orange County, CA in 2027
- 31 list Patrick
- 74 not listed
- 1 not checked yet

SCAN Health Plan
9 plans list Patrick; not listed on 3 other plans.
SCAN Classic (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthSCAN Costco Medicare Advantage (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthSCAN Inclusive (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthSCAN Select (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a month

UnitedHealthcare
7 plans list Patrick; not listed on 1 other plan.
AARP Medicare Advantage from UHC CA-005P (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage from UHC CA-46 (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Giveback from UHC CA-31P (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthAARP Medicare Advantage Patriot No Rx CA-MA1P (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a month

Aetna Medicare
5 plans list Patrick; not listed on 1 other plan.
Aetna Medicare Eagle (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Prime (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
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:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a month

Blue Shield of California
4 plans list Patrick; not listed on 1 other plan.
Blue Shield 65 Plus (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthBlue Shield 65 Plus Plan 2 (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthBlue Shield AdvantageOptimum Plan (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a monthBlue Shield Inspire (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a month

Anthem Blue Cross · Anthem Blue Cross Partnership Plan
3 plans list Patrick; not listed on 8 other plans.
Anthem Medicare Advantage (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
- 3160 Folsom Blvd, Sacramento, CA, 95816
- 2825 J St, Sacramento, CA, 95816
This result applies to these offices. Other locations are not confirmed.
$0a monthAnthem Prime (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
- 3160 Folsom Blvd, Sacramento, CA, 95816
- 2825 J St, Sacramento, CA, 95816
This result applies to these offices. Other locations are not confirmed.
$0a monthAnthem Select (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
- 3160 Folsom Blvd, Sacramento, CA, 95816
- 2825 J St, Sacramento, CA, 95816
This result applies to these offices. Other locations are not confirmed.
$0a month

Wellcare
2 plans list Patrick; not listed on 3 other plans.
Wellcare Low Premium (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$42a monthWellcare Health Net Dual Liberty (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$0a month
CalOptima Health OneCare
1 plan lists Patrick.
CalOptima Health OneCare Complete (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 1837 Sunny Crest Dr, Fullerton, CA, 92835
This result applies to these offices. Other locations are not confirmed.
$7.30a month

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 19 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.

Champion Heath Plan
Medicare.gov doesn't have provider data for these plans yet. We'll check again.
1 more Champion Heath Plan plan hasn't been checked yet.

Clever Care Health Plan
Not listed on its 6 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.

Kaiser Permanente
Not listed on its 3 plans here. That isn't proof they're out of network.
VillageHealth
Not listed on its 2 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 Patrick 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 21, 2026
Where they practice
Practice location
- NPI issued
- 2012
- Registry record updated
- Oct 22, 2024
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Patrick Koo?
In Orange County, CA, 31 Medicare Advantage plans for 2027 list Patrick in provider data from Medicare.gov or the carrier, including SCAN Classic (HMO), SCAN Costco Medicare Advantage (HMO) and SCAN Inclusive (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 Patrick Koo take SCAN Health Plan Medicare Advantage plans?
Medicare.gov provider data lists Patrick on 9 Medicare Advantage plans for 2027 in Orange County, CA, including SCAN Classic (HMO) and SCAN Costco Medicare Advantage (HMO). 3 other plans 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 SCAN Health Plan before you enroll.
Does Patrick Koo take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists Patrick on 7 Medicare Advantage plans for 2027 in Orange County, CA, including AARP Medicare Advantage from UHC CA-005P (HMO-POS) and AARP Medicare Advantage from UHC CA-46 (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 Patrick Koo take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Patrick on 5 Medicare Advantage plans for 2027 in Orange County, CA, including Aetna Medicare Eagle (HMO) and Aetna Medicare Prime (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 Aetna Medicare before you enroll.
Where does Patrick Koo practice?
1837 Sunny Crest Dr, Fullerton, CA 92835.
How do I confirm Patrick is in my plan's network?
Call the member services number on your plan card and give them the NPI 1801152772, 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 Patrick Koo on 48 plans from Align Senior Care, Alignment Health Plan, Astiva Health, Clever Care Health Plan, Humana, Imperial Health Plan of California, Inc., Kaiser Permanente and VillageHealth in Orange 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.