Christina BlumMD
Internal Medicine, Nephrology
2027 Medicare Advantage
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Not checked yet
We haven't asked Aetna Medicare, Alignment Health Plan, Alterwood Advantage, Anthem Blue Cross, Astiva Health, CareFirst BlueCross BlueShield Advantage DualPrime, Champion Heath Plan, Clever Care Health Plan, Community Health Group, Humana, Imperial Health Plan of California, Inc., Johns Hopkins Advantage MD, Kaiser Permanente, Molina Healthcare of California, SCAN Health Plan, UnitedHealthcare and Wellcare's directories about Christina yet. A Silverpath advisor can check for you now.
The 112 Medicare Advantage plans we show for Montgomery County, MD and San Diego County, CA in 2027
- 27 not listed
- 85 not checked yet
Aetna Medicare
Not checked yet.
Alignment Health Plan
Not checked yet.
Alterwood Advantage
Not listed on its 5 plans here. That isn't proof they're out of network.
Anthem Blue Cross · Anthem Blue Cross and Blue Shield · Anthem Blue Cross Partnership Plan
Not checked yet.
Astiva Health
Not checked yet.
CareFirst BlueCross BlueShield Advantage DualPrime · CareFirst BlueCross BlueShield Medicare Advantage · Blue Shield of California
Not checked yet.
5 more CareFirst BlueCross BlueShield Advantage DualPrime plans haven't been checked yet.
Champion Heath Plan
Not checked yet.
Clever Care Health Plan
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Community Health Group
Not checked yet.
Humana
Not checked yet.
6 more Humana plans haven't been checked yet.
Imperial Health Plan of California, Inc.
Not checked yet.
Johns Hopkins Advantage MD
Not listed on its 5 plans here. That isn't proof they're out of network.
Kaiser Permanente
Not checked yet.
3 more Kaiser Permanente plans haven't been checked yet.
Molina Healthcare of California
Not checked yet.
SCAN Health Plan
Not checked yet.
UnitedHealthcare
Not checked yet.
9 more UnitedHealthcare plans haven't been checked yet.
Wellcare
Not checked yet.
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
2 practice locations
Naval Medical Center San Diego, 34800 Bob Wilson Dr.
San Diego, CA 92134
- NPI issued
- 2013
- Registry record updated
- Nov 20, 2025
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Where does Christina Blum practice?
2 locations, including 8901 Rockville Pike, Bethesda, MD. All of them are listed on this page.
How do I confirm Christina is in my plan's network?
Call the member services number on your plan card and give them the NPI 1972845402, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
Patients can use Silverpath to find practices and check plan networks in Montgomery County, MD and San Diego County, CA. 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.