Mark DiamondMD
Internal Medicine, Gastroenterology
2027 Medicare Advantage
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Medicare Advantage plans for Baltimore 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 28 Medicare Advantage plans we show for Baltimore County, MD in 2027
- 8 list Mark
- 20 not listed
CareFirst BlueCross BlueShield Advantage DualPrime · CareFirst BlueCross BlueShield Medicare Advantage
4 plans list Mark.
CareFirst BlueCross BlueShield Advantage Salute (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 5233 King Ave, Ste 308, Baltimore, MD, 21237
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:
- 5233 King Ave, Ste 308, Baltimore, MD, 21237
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:
- 5233 King Ave, Ste 308, Baltimore, MD, 21237
This result applies to these offices. Other locations are not confirmed.
$47a monthCareFirst BlueCross BlueShield Advantage DualPrime (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 5233 King Ave, Ste 308, Baltimore, MD, 21237
This result applies to these offices. Other locations are not confirmed.
$5.70a month
Johns Hopkins Advantage MD
2 plans list Mark; not listed on 3 other plans.
Johns Hopkins Advantage MD Tribute (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 5233 King Ave, Ste 308, Rosedale, MD, 21237
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:
- 5233 King Ave, Ste 308, Rosedale, MD, 21237
This result applies to these offices. Other locations are not confirmed.
$49a month
UnitedHealthcare
2 plans list Mark.
UHC Dual Complete MD-Q001 (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 5233 King Ave, Ste 308, Rosedale, MD, 21237
This result applies to these offices. Other locations are not confirmed.
$0a monthUHC Dual Complete MD-S002 (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 5233 King Ave, Ste 308, Rosedale, MD, 21237
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.
HealthSpring
Not listed on its 4 plans here. That isn't proof they're out of network.
Humana
Not listed on its 2 plans here. That isn't proof they're out of network.
Kaiser Permanente
Not listed on its 5 plans here. That isn't proof they're out of network.
KeyCare Advantage
Not listed on its 1 plan 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.
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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
- Jul 8, 2007
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Mark Diamond?
In Baltimore County, MD, 8 Medicare Advantage plans for 2027 list Mark in provider data from Medicare.gov or the carrier, including CareFirst BlueCross BlueShield Advantage Salute (PPO), CareFirst BlueCross BlueShield Advantage Complete (PPO) and CareFirst BlueCross BlueShield Advantage Signature (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 Mark Diamond take CareFirst BlueCross BlueShield Advantage DualPrime Medicare Advantage plans?
Medicare.gov provider data lists Mark on 4 Medicare Advantage plans for 2027 in Baltimore County, MD, including 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. Confirm with the office or CareFirst BlueCross BlueShield Advantage DualPrime before you enroll.
Does Mark Diamond take Johns Hopkins Advantage MD Medicare Advantage plans?
Medicare.gov provider data lists Mark on 2 Medicare Advantage plans for 2027 in Baltimore County, MD, including Johns Hopkins Advantage MD Tribute (HMO) and Johns Hopkins Advantage MD (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 Johns Hopkins Advantage MD before you enroll.
Does Mark Diamond take UnitedHealthcare Medicare Advantage plans?
Medicare.gov provider data lists Mark on 2 Medicare Advantage plans for 2027 in Baltimore County, MD, including UHC Dual Complete MD-Q001 (HMO D-SNP) 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. Confirm with the office or UnitedHealthcare before you enroll.
Where does Mark Diamond practice?
9105 Franklin Square Drive, Suite 308, Baltimore, MD 21237.
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 1912081019, 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 Diamond on 17 plans from Alterwood Advantage, HealthSpring, Humana, Kaiser Permanente and KeyCare Advantage in Baltimore 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.