Provider profile

Johanna GerwerMD, MPH

Internal Medicine

Accepts Medicare 2 locationsNPI 1043742588
1809 National Ave, San Diego, CA 92113(619) 515-2300

Check your plan

Medicare Advantage plans for San Diego County, CA.

Checked Oct 12, 2026

Use the name or plan ID on your member card, or choose your insurance company.

Directory results See what each insurance company reports

Listed on 3 Medicare Advantage plans for 2027

Carrier directories and Medicare.gov provider data list Johanna on these plans. Review each plan's covered offices before enrolling. One directory didn't answer this time; we'll try it again.

The 85 Medicare Advantage plans we show for San Diego County, CA in 2027

  • 3 list Johanna
  • 78 not listed
  • 4 not checked yet

Community Health Group

2 plans list Johanna.

2plans
  • Community y Más (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1809 National Ave, San Diego, CA, 92113

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with certain chronic conditionsDrug coverageH6248-001-000Medicare.gov
    $0a month
  • CommuniCare Advantage (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1809 National Ave, San Diego, CA, 92113

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage2.5 starsH4733-001-000Medicare.gov
    $7.30a month

Molina Healthcare of California

1 plan lists Johanna.

1plan
  • Molina Medicare Complete Care Plus (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1809 National Ave, San Diego, CA, 92113

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage3 starsH3038-004-003Medicare.gov
    $7.30a month

Aetna Medicare

Not listed on its 4 plans here. That isn't proof they're out of network.

Alignment Health Plan

Not listed on its 15 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

Medicare.gov doesn't have provider data for these plans yet. We'll check again.

1 more Anthem Blue Cross plan hasn't been checked yet.

Astiva Health

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

Blue Shield of California

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

Champion Heath Plan

Medicare.gov doesn't have provider data for these plans yet. We'll check again.

3 more Champion Heath Plan plans haven't been checked yet.

Clever Care Health Plan

Not listed on its 6 plans here. That isn't proof they're out of network.

Humana

Not listed on its 6 plans here. That isn't proof they're out of network.

Imperial Health Plan of California, Inc.

Not listed on its 4 plans here. That isn't proof they're out of network.

Kaiser Permanente

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

SCAN Health Plan

Not listed on its 8 plans here. That isn't proof they're out of network.

UnitedHealthcare

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

Wellcare

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.

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See Johanna with Original Medicare

Johanna accepts Medicare at the practices Medicare lists as accepting assignment. Most Medicare Supplement (Medigap) policies have no provider network and help pay Original Medicare's cost sharing. Medicare SELECT policies can require network providers for full benefits. Confirm the location and policy before scheduling care.

Accepts Medicare. Enrolled in Medicare and accepts the Medicare-approved amount as payment in full ("accepts assignment") at every practice Medicare lists.

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 22, 2026

Compare Supplement plans

2 practice locations

Family Health Centers of San Diego Inc

1809 National Ave
San Diego, CA 92113

Medicare's clinician list

Family Health Centers of San Diego Inc

8788 Jamacha Rd
Spring Valley, CA 91977

Medicare's clinician list
Education
Texas Tech University Health Science Center School of Medicine, 2017
Gender
Female
NPI issued
2017
Registry record updated
Sep 13, 2022

Common questions

Does Johanna Gerwer accept Medicare?

Accepts Medicare. Enrolled in Medicare and accepts the Medicare-approved amount as payment in full ("accepts assignment") at every practice Medicare lists.

Which 2027 Medicare Advantage plans list Johanna Gerwer?

In San Diego County, CA, 3 Medicare Advantage plans for 2027 list Johanna in provider data from Medicare.gov or the carrier, including Community y Más (HMO C-SNP), CommuniCare Advantage (HMO D-SNP) and Molina Medicare Complete Care Plus (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 Johanna Gerwer take Community Health Group Medicare Advantage plans?

Medicare.gov provider data lists Johanna on 2 Medicare Advantage plans for 2027 in San Diego County, CA, including Community y Más (HMO C-SNP) and CommuniCare Advantage (HMO D-SNP). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Community Health Group before you enroll.

Does Johanna Gerwer take Molina Healthcare of California Medicare Advantage plans?

Medicare.gov provider data lists Johanna on one Medicare Advantage plan for 2027 in San Diego County, CA: Molina Medicare Complete Care Plus (HMO D-SNP). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Molina Healthcare of California before you enroll.

Does Johanna Gerwer take Aetna Medicare Medicare Advantage plans?

The provider searches didn't return a listing for Johanna on these 4 plans for 2027 in San Diego County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof Johanna is out of network. Ask the office or a Silverpath advisor to confirm.

Can I see Johanna Gerwer with a Medicare Supplement plan?

At a practice where they accept Medicare, most Medicare Supplement (Medigap) policies help pay Original Medicare's cost sharing with no provider network. Medicare SELECT policies can require network providers for full benefits. Confirm with the office and your insurer.

Where does Johanna Gerwer practice?

2 locations, including 1809 National Ave, San Diego, CA. All of them are listed on this page.

How do I confirm Johanna is in my plan's network?

Call the member services number on your plan card and give them the NPI 1043742588, or ask a Silverpath advisor to check for you. It's free.

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A Silverpath advisor can confirm Johanna's networks with the carrier and help you compare plans that include them.

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For providers

Is this your practice?

What patients see here today:

  • Provider searches did not return a listing for Johanna Gerwer on 69 plans from Aetna Medicare, Alignment Health Plan, Astiva Health, Blue Shield of California, Clever Care Health Plan, Humana, Imperial Health Plan of California, Inc., Kaiser Permanente, SCAN Health Plan, UnitedHealthcare and Wellcare in San Diego County, CA. 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.

Sources. Name, specialty and locations: the CMS NPI Registry (record updated 2022-09-13). Medicare enrollment, groups and hospital affiliations: CMS Doctors and Clinicians data, read Oct 9, 2026. Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 12, 2026. CMS matches apply to the covered offices shown with each plan. Plans: CMS 2027 Medicare Advantage landscape.

Networks change during the year, and a directory can be out of date. Confirm with the provider's office and the plan before you enroll or schedule care.

Silverpath is a licensed insurance agency. This page isn't affiliated with or endorsed by Johanna Gerwer or their practice. Not connected with or endorsed by the U.S. government or the federal Medicare program.

We do not offer every plan available in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.

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