Provider profile

Ilysa DiamondDO

Internal Medicine, Gastroenterology

4 locationsNPI 1356596332
1010 Lake St Ste 424, Oak Park, IL 60301708-613-4417

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Medicare Advantage plans for Cook County, IL and Allen County, IN.

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Listed on 22 plans so far

Some of Aetna Medicare, HealthSpring, Wellcare, Zing Health, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of IL, NM, Devoted, Essence Healthcare, Humana, Molina Healthcare of Illinois and UnitedHealthcare's 2027 plans in Cook County, IL and Allen County, IN haven't been checked yet.

The 119 Medicare Advantage plans we show for Cook County, IL and Allen County, IN in 2027

  • 22 list Ilysa
  • 42 not listed
  • 55 not checked yet

Aetna Medicare · Aetna Medicare FIDE

8 plans list Ilysa; not listed on 1 other plan.

8plans
  • Aetna Medicare Eagle (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1010 Lake St, Ste 424, Oak Park, IL, 60301
    • 11104 Parkview Circle Dr, Ste 310, Fort Wayne, IN, 46845

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

    PPONo drug coverage4 starsH5521-286-000Medicare.gov
    $0a month
  • Aetna Medicare Prime (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1010 Lake St, Ste 424, Oak Park, IL, 60301

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

    HMO-POSDrug coverage3.5 starsH3192-001-000Medicare.gov
    $0a month
  • Aetna Medicare Prime Extra Care (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1010 Lake St, Ste 424, Oak Park, IL, 60301

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

    HMODrug coverage3.5 starsH1206-010-000Medicare.gov
    $0a month
  • Aetna Medicare Signature (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1010 Lake St, Ste 424, Oak Park, IL, 60301
    • 11104 Parkview Circle Dr, Ste 310, Fort Wayne, IN, 46845

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

    HMO-POSDrug coverage3.5 starsH1206-003-000Medicare.gov
    $0a month

3 more Aetna Medicare plans haven't been checked yet.

HealthSpring

5 plans list Ilysa.

5plans
  • HealthSpring Preferred (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 2160 S 1st Ave, Maywood, IL, 60153
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMODrug coverage3.5 starsH4513-085-000Medicare.gov
    $0a month
  • HealthSpring Preferred Savings (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 2160 S 1st Ave, Maywood, IL, 60153
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMODrug coverage3.5 starsH4513-086-000Medicare.gov
    $0a month
  • HealthSpring Premier (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 2160 S 1st Ave, Maywood, IL, 60153
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMO-POSDrug coverage3.5 starsH4513-084-000Medicare.gov
    $0a month
  • HealthSpring True Choice (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 2160 S 1st Ave, Maywood, IL, 60153
    • 701 W North Ave, Melrose Park, IL, 60160

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

    PPODrug coverage3 starsH7849-002-000Medicare.gov
    $0a month

Wellcare

5 plans list Ilysa; not listed on 1 other plan.

5plans
  • Wellcare Giveback (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 11104 Parkview Circle Dr, Ste 440, Fort Wayne, IN, 46845

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

    HMODrug coverage3.5 starsH5779-010-000Medicare.gov
    $0a month
  • Wellcare Simple (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 11104 Parkview Circle Dr, Ste 440, Fort Wayne, IN, 46845

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

    HMO-POSDrug coverage3 starsH1416-009-000Medicare.gov
    $0a month
  • Wellcare Simple Essential (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 11104 Parkview Circle Dr, Ste 440, Fort Wayne, IN, 46845

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

    HMODrug coverage3.5 starsH5779-009-000Medicare.gov
    $0a month
  • Wellcare Simple Exclusive (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 11104 Parkview Circle Dr, Ste 440, Fort Wayne, IN, 46845

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

    HMODrug coverage3.5 starsH5779-007-000Medicare.gov
    $0a month

3 more Wellcare plans haven't been checked yet.

Zing Health

4 plans list Ilysa; not listed on 3 other plans.

4plans
  • Zing Select Care IL (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 645 S Central Ave, Chicago, IL, 60644
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMODrug coverage3.5 starsH4624-001-000Medicare.gov
    $0a month
  • Zing Select Diabetes & Heart Complete IL (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 645 S Central Ave, Chicago, IL, 60644
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMOFor people with certain chronic conditionsDrug coverage3.5 starsH4624-027-000Medicare.gov
    $0a month
  • Zing Select Diabetes & Heart IL (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 645 S Central Ave, Chicago, IL, 60644
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMOFor people with certain chronic conditionsDrug coverage3.5 starsH4624-010-000Medicare.gov
    $0a month
  • Zing Select Dialysis IL (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 645 S Central Ave, Chicago, IL, 60644
    • 701 W North Ave, Melrose Park, IL, 60160

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

    HMOFor people with certain chronic conditionsDrug coverage3.5 starsH4624-029-000Medicare.gov
    $0a month

Anthem Blue Cross and Blue Shield · Anthem HealthKeepers

Not checked yet.

Blue Cross and Blue Shield of IL, NM

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

Devoted

Not checked yet.

7 more Devoted plans haven't been checked yet.

Essence Healthcare

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

Humana

Not checked yet.

16 more Humana plans haven't been checked yet.

Molina Healthcare of Illinois

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

UnitedHealthcare

Not checked yet.

12 more UnitedHealthcare plans haven't been checked yet.

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 Ilysa takes it. Free.

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

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4 practice locations

1010 Lake St Ste 424
Oak Park, IL 60301

NPI Registry

3101 N Harlem Ave # 3115
Chicago, IL 60634

NPI Registry

3 Erie Ct
Oak Park, IL 60302

NPI Registry

11104 Parkview Circle Dr Ste 310
Fort Wayne, IN 46845

NPI Registry
NPI issued
2008
Registry record updated
Sep 3, 2024

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

Common questions

Which 2027 Medicare Advantage plans list Ilysa Diamond?

In Cook County, IL and Allen County, IN, 22 Medicare Advantage plans for 2027 list Ilysa in provider data from Medicare.gov or the carrier, including Aetna Medicare Eagle (PPO), Aetna Medicare Prime (HMO-POS) and Aetna Medicare Prime Extra Care (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.

Where does Ilysa Diamond practice?

4 locations, including 1010 Lake St Ste 424, Oak Park, IL. All of them are listed on this page.

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

Call the member services number on your plan card and give them the NPI 1356596332, or ask a Silverpath advisor to check for you. It's free.

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Talk to a licensed advisor

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

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For providers

Is this your practice?

Patients can use Silverpath to find practices and check plan networks in Cook County, IL and Allen County, IN. 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 2024-09-03). 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 Ilysa Diamond 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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