Ann Marie Stephenson ThomasDO
Internal Medicine, Gastroenterology
2027 Medicare Advantage
Check your plan
Medicare Advantage plans for Montgomery 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 27 Medicare Advantage plans we show for Montgomery County, MD in 2027
- 8 list Ann Marie
- 19 not listed
CareFirst BlueCross BlueShield Advantage DualPrime · CareFirst BlueCross BlueShield Medicare Advantage
4 plans list Ann Marie; not listed on 1 other plan.
CareFirst BlueCross BlueShield Advantage Essential (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
- 15005 Shady Grove Rd, Ste 310, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$0a monthCareFirst BlueCross BlueShield Advantage Salute (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
- 15005 Shady Grove Rd, Ste 310, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$0a monthCareFirst BlueCross BlueShield Advantage Complete (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
- 15005 Shady Grove Rd, Ste 310, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$45a monthCareFirst BlueCross BlueShield Advantage Signature (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
- 15005 Shady Grove Rd, Ste 310, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$47a month
Johns Hopkins Advantage MD
3 plans list Ann Marie; not listed on 2 other plans.
Johns Hopkins Advantage MD Tribute (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$0a monthJohns Hopkins Advantage MD (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$49a monthJohns Hopkins Advantage MD D-SNP (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 12510 Prosperity Dr, Ste 200, Silver Spring, MD, 20904
This result applies to these offices. Other locations are not confirmed.
$7.90a month
UnitedHealthcare
1 plan lists Ann Marie.
UHC Dual Complete MD-S002 (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 15001 Shady Grove Rd, Ste 300, Rockville, MD, 20850
This result applies to these offices. Other locations are not confirmed.
$0a month
Alterwood Advantage
Not listed on its 5 plans here. That isn't proof they're out of network.
Humana
Not listed on its 4 plans here. That isn't proof they're out of network.
Kaiser Permanente
Not listed on its 7 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 Ann Marie 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
- Jan 24, 2019
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Ann Marie Stephenson Thomas?
In Montgomery County, MD, 8 Medicare Advantage plans for 2027 list Ann Marie in provider data from Medicare.gov or the carrier, including CareFirst BlueCross BlueShield Advantage Essential (PPO), CareFirst BlueCross BlueShield Advantage Salute (PPO) and CareFirst BlueCross BlueShield Advantage Complete (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.
Does Ann Marie Stephenson Thomas take CareFirst BlueCross BlueShield Advantage DualPrime Medicare Advantage plans?
Medicare.gov provider data lists Ann Marie on 4 Medicare Advantage plans for 2027 in Montgomery County, MD, including CareFirst BlueCross BlueShield Advantage Essential (PPO) and CareFirst BlueCross BlueShield Advantage Salute (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 Ann Marie Stephenson Thomas take Johns Hopkins Advantage MD Medicare Advantage plans?
Medicare.gov provider data lists Ann Marie on 3 Medicare Advantage plans for 2027 in Montgomery County, MD, including Johns Hopkins Advantage MD Tribute (HMO) and Johns Hopkins Advantage MD (HMO). 2 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 Johns Hopkins Advantage MD before you enroll.
Does Ann Marie Stephenson Thomas take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists Ann Marie on one Medicare Advantage plan for 2027 in Montgomery 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.
Where does Ann Marie Stephenson Thomas practice?
9420 Key West Avenue, Suite 202, Rockville, MD 20850.
How do I confirm Ann Marie is in my plan's network?
Call the member services number on your plan card and give them the NPI 1376742601, 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 Ann Marie Stephenson Thomas on 16 plans from Alterwood Advantage, Humana and Kaiser Permanente in Montgomery County, MD. 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.