Mark GrinmanMD
Psychiatry & Neurology, Neurology
2027 Medicare Advantage
Check your plan
Medicare Advantage plans for Horry County, SC.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
The 60 Medicare Advantage plans we show for Horry County, SC in 2027
- 6 list Mark
- 54 not listed

Wellcare
6 plans list Mark; not listed on 1 other plan.
Wellcare Assist (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 920 Doug White Dr, Ste 460, Myrtle Beach, SC, 29572
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Assist Open (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 920 Doug White Dr, Ste 460, Myrtle Beach, SC, 29572
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Giveback (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 920 Doug White Dr, Ste 460, Myrtle Beach, SC, 29572
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Patriot Giveback (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 920 Doug White Dr, Ste 460, Myrtle Beach, SC, 29572
This result applies to these offices. Other locations are not confirmed.
$0a month

Aetna Medicare
Not listed on its 5 plans here. That isn't proof they're out of network.

Blue Cross Blue Shield of South Carolina
Not listed on its 3 plans here. That isn't proof they're out of network.

Clover Health
Not listed on its 3 plans here. That isn't proof they're out of network.

Devoted
Not listed on its 9 plans here. That isn't proof they're out of network.

First Choice VIP Care (HMO D-SNP)
Not listed on its 1 plan here. That isn't proof they're out of network.

Humana
Not listed on its 19 plans here. That isn't proof they're out of network.

Molina Healthcare of South Carolina
Not listed on its 1 plan 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.
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 Mark 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 28, 2022
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Mark Grinman?
In Horry County, SC, 6 Medicare Advantage plans for 2027 list Mark in provider data from Medicare.gov or the carrier, including Wellcare Assist (HMO-POS), Wellcare Assist Open (PPO) and Wellcare Giveback (HMO-POS). 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 Mark Grinman take Wellcare Medicare Advantage plans?
Medicare.gov provider data lists Mark on 6 Medicare Advantage plans for 2027 in Horry County, SC, including Wellcare Assist (HMO-POS) and Wellcare Assist Open (PPO). 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 Wellcare before you enroll.
Does Mark Grinman take Aetna Medicare Medicare Advantage plans?
The provider searches didn't return a listing for Mark on these 5 plans for 2027 in Horry County, SC. Directories can lag, and a clinician can be in network at another office, so that isn't proof Mark is out of network. Ask the office or a Silverpath advisor to confirm.
Does Mark Grinman take Blue Cross Blue Shield of South Carolina Medicare Advantage plans?
The provider searches didn't return a listing for Mark on these 3 plans for 2027 in Horry County, SC. Directories can lag, and a clinician can be in network at another office, so that isn't proof Mark is out of network. Ask the office or a Silverpath advisor to confirm.
Where does Mark Grinman practice?
920 Doug White Dr Ste 460, Myrtle Beach, SC 29572.
How do I confirm Mark is in my plan's network?
Call the member services number on your plan card and give them the NPI 1164489829, 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 Mark Grinman on 53 plans from Aetna Medicare, Blue Cross Blue Shield of South Carolina, Clover Health, Devoted, First Choice VIP Care (HMO D-SNP), Humana, Molina Healthcare of South Carolina and UnitedHealthcare in Horry County, SC. 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.