Peter JohnstonMD
Orthopaedic Surgery
2027 Medicare Advantage
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Medicare Advantage plans for St. Mary's County, MD.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
The 8 Medicare Advantage plans we show for St. Mary's County, MD in 2027
- 3 list Peter
- 5 not listed
CareFirst BlueCross BlueShield Advantage DualPrime · CareFirst BlueCross BlueShield Medicare Advantage
2 plans list Peter; not listed on 1 other plan.
CareFirst BlueCross BlueShield Advantage Salute (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 23000 Moakley St, Ste 102, Leonardtown, MD, 20650
- 11340 Pembrooke Sq, Ste 211, Waldorf, MD, 20603
This result applies to these offices. Other locations are not confirmed.
$0a monthCareFirst BlueCross BlueShield Advantage Signature (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 23000 Moakley St, Ste 102, Leonardtown, MD, 20650
- 11340 Pembrooke Sq, Ste 211, Waldorf, MD, 20603
This result applies to these offices. Other locations are not confirmed.
$58a month
UnitedHealthcare
1 plan lists Peter.
UHC Dual Complete MD-S002 (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 23000 Moakley St, Ste 102, Leonardtown, MD, 20650
- 4225 Altamont Pl, Ste 101, White Plains, MD, 20695
This result applies to these offices. Other locations are not confirmed.
$0a month
Humana
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 Peter 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
- 2007
- Registry record updated
- May 9, 2013
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Peter Johnston?
In St. Mary's County, MD, 3 Medicare Advantage plans for 2027 list Peter in provider data from Medicare.gov or the carrier, including CareFirst BlueCross BlueShield Advantage Salute (PPO), CareFirst BlueCross BlueShield Advantage Signature (PPO) and UHC Dual Complete MD-S002 (HMO D-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 Peter Johnston take CareFirst BlueCross BlueShield Advantage DualPrime Medicare Advantage plans?
Medicare.gov provider data lists Peter on 2 Medicare Advantage plans for 2027 in St. Mary's County, MD, including CareFirst BlueCross BlueShield Advantage Salute (PPO) and CareFirst BlueCross BlueShield Advantage Signature (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 CareFirst BlueCross BlueShield Advantage DualPrime before you enroll.
Does Peter Johnston take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists Peter on one Medicare Advantage plan for 2027 in St. Mary's County, MD: UHC Dual Complete MD-S002 (HMO D-SNP). 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 Peter Johnston take Humana Medicare Advantage plans?
Humana's own provider directory doesn't list Peter on any of its 4 plans for 2027 in St. Mary's County, MD. Directories can lag, and a clinician can be in network at another office, so that isn't proof Peter is out of network. Ask the office or a Silverpath advisor to confirm.
Where does Peter Johnston practice?
23000 Moakley Street, Suite 102, Leonardtown, MD 20650.
How do I confirm Peter is in my plan's network?
Call the member services number on your plan card and give them the NPI 1194946095, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
What patients see here today:
- Humana's directory doesn't list Peter Johnston on any of its 4 plans in St. Mary's County, MD.
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.