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Provider profile

William ChangMD

Internal Medicine, Critical Care Medicine

2 locationsNPI 1003236688
500 N Garfield Ave Ste 204, Monterey Park, CA 91754626-280-4393

2027 Medicare Advantage

Check your plan

Medicare Advantage plans for Los Angeles County, CA.

Checked Oct 13, 2026

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

Directory results See what each insurance company reports

The 119 Medicare Advantage plans we show for Los Angeles County, CA in 2027

  • 72 list William
  • 47 not listed

Alignment Health Plan

15 plans list William; not listed on 6 other plans.

15plans

  • Alignment Health BRIDGE 003 (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH6697-003-000Medicare.gov
    $0a month

  • Alignment Health My Choice 001 (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH3815-001-000Medicare.gov
    $0a month

  • Alignment Health My Choice 050 (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH3815-050-000Medicare.gov
    $0a month

  • Alignment Health Platinum + Instacart 008 (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH3815-008-000Medicare.gov
    $0a month

SCAN Health Plan

12 plans list William; not listed on 3 other plans.

12plans

  • SCAN Allied (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5425-123-000Medicare.gov
    $0a month

  • SCAN Classic (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5425-006-000Medicare.gov
    $0a month

  • SCAN Costco Medicare Advantage (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5425-142-000Medicare.gov
    $0a month

  • SCAN Essential Savings (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5425-133-000Medicare.gov
    $0a month

UnitedHealthcare

8 plans list William.

8plans

  • AARP Medicare Advantage from UHC CA-003P (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH0543-151-000Medicare.gov
    $0a month

  • AARP Medicare Advantage from UHC CA-004P (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH0543-168-000Medicare.gov
    $0a month

  • AARP Medicare Advantage from UHC CA-45 (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH0543-260-000Medicare.gov
    $0a month

  • AARP Medicare Advantage Giveback from UHC CA-30P (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH0543-236-000Medicare.gov
    $0a month

Aetna Medicare

6 plans list William; not listed on 1 other plan.

6plans

  • Aetna Medicare Eagle (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMONo drug coverageH0523-099-000Medicare.gov
    $0a month

  • Aetna Medicare Prime (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH0523-085-000Medicare.gov
    $0a month

  • Aetna Medicare Prime Extra (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH4982-025-000Medicare.gov
    $0a month

  • Aetna Medicare Signature (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH4982-001-000Medicare.gov
    $0a month

Clever Care Health Plan

6 plans list William.

6plans

  • Clever Care Longevity (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754
    • 100 S Raymond Ave, Alhambra, CA, 91801

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

    HMODrug coverageH7607-014-000Medicare.gov
    $0a month

  • Clever Care Value (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754
    • 100 S Raymond Ave, Alhambra, CA, 91801

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

    HMODrug coverageH7607-015-000Medicare.gov
    $0a month

  • Clever Care Breathe Select+ (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754
    • 100 S Raymond Ave, Alhambra, CA, 91801

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

    HMOFor people with certain chronic conditionsDrug coverageH7607-019-000Medicare.gov
    $0a month

  • Clever Care Breathe+ (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754
    • 100 S Raymond Ave, Alhambra, CA, 91801

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

    HMOFor people with certain chronic conditionsDrug coverageH7607-017-000Medicare.gov
    $0a month

Astiva Health

5 plans list William.

5plans

  • Astiva Health Savings Plan (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH1993-001-000Medicare.gov
    $0a month

  • Astiva Health C-SNP Bloom (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with certain chronic conditionsDrug coverageH1993-020-000Medicare.gov
    $0a month

  • Astiva Health C-SNP Deluxe (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with certain chronic conditionsDrug coverageH1993-007-000Medicare.gov
    $0a month

  • Astiva Health C-SNP Fountain (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with certain chronic conditionsDrug coverageH1993-019-000Medicare.gov
    $0a month

Wellcare

5 plans list William.

5plans

  • Wellcare Simple (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5087-005-000Medicare.gov
    $0a month

  • Wellcare Simple Focus (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH0562-125-000Medicare.gov
    $0a month

  • Wellcare Low Premium (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH0562-136-000Medicare.gov
    $42a month

  • Wellcare Health Net Dual Align (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with Medicare and MedicaidDrug coverageH3561-010-001Medicare.gov
    $0a month

Anthem Blue Cross · Anthem Blue Cross Partnership Plan

4 plans list William; not listed on 8 other plans.

4plans

  • Anthem Medicare Advantage (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH0544-061-000Medicare.gov
    $0a month

  • Anthem Prime (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH4161-009-000Medicare.gov
    $0a month

  • Anthem Select (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Monterey Park, CA, 91754

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

    HMO-POSDrug coverageH0544-058-000Medicare.gov
    $0a month

  • Anthem Full Dual Advantage Aligned (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Monterey Park, CA, 91754

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

    HMOFor people with Medicare and MedicaidDrug coverageH4471-010-001Medicare.gov
    $0a month

Humana

4 plans list William; not listed on 4 other plans.

4plans

  • Humana Gold Plus Giveback H5619-146 (HMO)

    Source: Humana provider directory.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5619-146-000Medicare.gov
    $0a month

  • Humana Gold Plus H3767-002 (HMO)

    Source: Humana provider directory.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH3767-002-000Medicare.gov
    $0a month

  • Humana Gold Plus H5619-021 (HMO)

    Source: Humana provider directory.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5619-021-000Medicare.gov
    $0a month

  • Humana USAA Honor Giveback (HMO)

    Source: Humana provider directory.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMONo drug coverageH5619-121-000Medicare.gov
    $0a month

Imperial Health Plan of California, Inc.

4 plans list William.

4plans

  • Imperial Courage Plan (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMONo drug coverageH5496-016-000Medicare.gov
    $0a month

  • Imperial Dynamic Plan (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH5496-012-000Medicare.gov
    $0a month

  • Imperial Senior Value (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with certain chronic conditionsDrug coverageH5496-005-000Medicare.gov
    $0a month

  • Imperial Flex (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with certain chronic conditionsDrug coverageH5496-017-000Medicare.gov
    $2.70a month

Elite Health Plan, Inc.

2 plans list William.

2plans

  • Elite Core HMO (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH6368-002-000Medicare.gov
    $0a month

  • Elite Signature HMO (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMODrug coverageH6368-001-000Medicare.gov
    $0a month

Molina Healthcare of California

1 plan lists William.

1plan

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

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 500 N Garfield Ave, Ste 204, Monterey Park, CA, 91754

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

    HMOFor people with Medicare and MedicaidDrug coverageH3038-004-001Medicare.gov
    $7.30a month

AHF

Not listed on its 1 plan here. That isn't proof they're out of network.

Align Senior Care

Not listed on its 1 plan here. That isn't proof they're out of network.

Blue Shield of California

Not listed on its 7 plans here. That isn't proof they're out of network.

Champion Heath Plan

Not listed on its 9 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.

L.A. Care Health Plan

Not listed on its 1 plan here. That isn't proof they're out of network.

UCLA Health Medicare Advantage Plan

Not listed on its 2 plans here. That isn't proof they're out of network.

VillageHealth

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.

Can't find your plan?Tell us the plan you have, and a licensed Silverpath advisor will check whether William 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 21, 2026

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Where they practice

2 practice locations

500 N Garfield Ave Ste 204
Monterey Park, CA 91754

626-280-4393Directions
NPI Registry

8700 Beverly Blvd
West Hollywood, CA 90048

310-423-3277Directions
NPI Registry
NPI issued
2014
Registry record updated
Aug 18, 2021

Medicare's clinician details aren't available on this page yet.

Questions

Common questions

Which 2027 Medicare Advantage plans list William Chang?

In Los Angeles County, CA, 72 Medicare Advantage plans for 2027 list William in provider data from Medicare.gov or the carrier, including Alignment Health BRIDGE 003 (HMO), Alignment Health My Choice 001 (HMO) and Alignment Health My Choice 050 (HMO). 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 William Chang take Alignment Health Plan Medicare Advantage plans?

Medicare.gov provider data lists William on 15 Medicare Advantage plans for 2027 in Los Angeles County, CA, including Alignment Health BRIDGE 003 (HMO) and Alignment Health My Choice 001 (HMO). 6 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 Alignment Health Plan before you enroll.

Does William Chang take SCAN Health Plan Medicare Advantage plans?

Medicare.gov provider data lists William on 12 Medicare Advantage plans for 2027 in Los Angeles County, CA, including SCAN Allied (HMO) and SCAN Classic (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 SCAN Health Plan before you enroll.

Does William Chang take UnitedHealthcare Medicare Advantage plans?

Medicare.gov provider data lists William on 8 Medicare Advantage plans for 2027 in Los Angeles County, CA, including AARP Medicare Advantage from UHC CA-003P (HMO-POS) and AARP Medicare Advantage from UHC CA-004P (HMO-POS). 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 William Chang practice?

2 locations, including 500 N Garfield Ave Ste 204, Monterey Park, CA. All of them are listed on this page.

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

Call the member services number on your plan card and give them the NPI 1003236688, or ask a Silverpath advisor to check for you. It's free.

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For providers

Is this your practice?

What patients see here today:

  • Provider searches did not return a listing for William Chang on 25 plans from AHF, Align Senior Care, Blue Shield of California, Champion Heath Plan, Kaiser Permanente, L.A. Care Health Plan, UCLA Health Medicare Advantage Plan and VillageHealth in Los Angeles 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.

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Nearby

Other internal medicine, critical care medicine providers near Monterey Park

Stephen ChenMonterey Park, CA · Listed on 83 plansJeffrey ChenMonterey Park, CA · Listed on 78 plansJeng-Jong LiaoMonterey Park, CA · Listed on 60 plansAli AtabakiCalabasas, CA · Listed on 72 plansAlfredo Lee ChangLos Angeles, CA · Listed on 60 plansAnthony ArredondoTorrance, CA · Listed on 60 plansAimee FrenchRiverside, CA · Listed on 59 plansDaniel AkhavanWhittier, CA · Listed on 59 plans

See all internal medicine, critical care medicine providers in CA

Sources. Name, specialty and locations: the CMS NPI Registry (record updated 2021-08-18). Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 13, 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 William Chang 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.

Are you William Chang? Talk to us about this page, or request a correction or removal.

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