Gregory MackayMD
Internal Medicine, Gastroenterology
2027 Medicare Advantage
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Medicare Advantage plans for Indian River County, FL.
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Directory results See what each insurance company reports
The 90 Medicare Advantage plans we show for Indian River County, FL in 2027
- 12 list Gregory
- 78 not listed
Aetna Medicare
5 plans list Gregory.
Aetna Medicare Eagle Giveback (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 102, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Select (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 102, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Chronic Care (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 102, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Full Dual Select (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 102, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a month
Gold Kidney Health Plan
5 plans list Gregory.
Gold Dialysis & Kidney (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 206, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthGold Heart & Diabetes (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 206, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthGold Heart & Diabetes Plus (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 206, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthGold Dialysis & Kidney Complete (HMO-POS C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 206, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$7.30a month
Florida Blue
2 plans list Gregory.
BlueMedicare Patriot (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 102, Vero Beach, FL, 32960
- 1000 36th St, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a monthBlueMedicare Value (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 3450 11th Ct, Ste 102, Vero Beach, FL, 32960
- 1000 36th St, Vero Beach, FL, 32960
This result applies to these offices. Other locations are not confirmed.
$0a month
Devoted
Not listed on its 8 plans here. That isn't proof they're out of network.
Florida Complete Care
Not listed on its 1 plan here. That isn't proof they're out of network.
Freedom Health, Inc. · Optimum HealthCare, Inc. · Simply Healthcare Plans, Inc.
Not listed on its 12 plans here. That isn't proof they're out of network.
Health First Health Plans, Inc.
Not listed on its 5 plans here. That isn't proof they're out of network.
CarePlus Health Plans, Inc. · Humana
Not listed on its 29 plans here. That isn't proof they're out of network.
Ultimate Health Plans
Not listed on its 5 plans here. That isn't proof they're out of network.
UnitedHealthcare
Not listed on its 12 plans here. That isn't proof they're out of network.
Wellcare
Not listed on its 6 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 Gregory 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
- 2006
- Registry record updated
- Jan 22, 2018
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Gregory Mackay?
In Indian River County, FL, 12 Medicare Advantage plans for 2027 list Gregory in provider data from Medicare.gov or the carrier, including Aetna Medicare Eagle Giveback (PPO), Aetna Medicare Select (HMO) and Aetna Medicare Chronic Care (HMO C-SNP). 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 Gregory Mackay take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Gregory on 5 Medicare Advantage plans for 2027 in Indian River County, FL, including Aetna Medicare Eagle Giveback (PPO) and Aetna Medicare Select (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.
Does Gregory Mackay take Gold Kidney Health Plan Medicare Advantage plans?
Medicare.gov provider data lists Gregory on 5 Medicare Advantage plans for 2027 in Indian River County, FL, including Gold Dialysis & Kidney (HMO-POS C-SNP) and Gold Heart & Diabetes (HMO-POS C-SNP). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Gold Kidney Health Plan before you enroll.
Does Gregory Mackay take Florida Blue Medicare Advantage plans?
Medicare.gov provider data lists Gregory on 2 Medicare Advantage plans for 2027 in Indian River County, FL, including BlueMedicare Patriot (PPO) and BlueMedicare Value (PPO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Florida Blue before you enroll.
Where does Gregory Mackay practice?
3745 11th Cir, Suite 101, Vero Beach, FL 32960.
How do I confirm Gregory is in my plan's network?
Call the member services number on your plan card and give them the NPI 1346277613, 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 Gregory Mackay on 78 plans from Devoted, Florida Complete Care, Freedom Health, Inc., Health First Health Plans, Inc., Humana, Ultimate Health Plans, UnitedHealthcare and Wellcare in Indian River County, FL. 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.