Provider profile

Leon KoganMD

Internal Medicine, Gastroenterology

3 locationsNPI 1598916223
400 W Main St Ste 300, Babylon, NY 11702631-321-6400

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Medicare Advantage plans for Suffolk County, NY, Grafton County, NH and Monmouth County, NJ.

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Directory results See what each insurance company reports

Listed on 24 plans so far

Some of Wellcare, Anthem Blue Cross and Blue Shield HP, UnitedHealthcare, Healthfirst Medicare Plan, VNS Health Medicare, EmblemHealth, Aetna Medicare, Clover Health, Devoted, Horizon Blue Cross Blue Shield of New Jersey and Humana's 2027 plans in Suffolk County, NY, Grafton County, NH and Monmouth County, NJ haven't been checked yet.

The 88 Medicare Advantage plans we show for Suffolk County, NY, Grafton County, NH and Monmouth County, NJ in 2027

  • 24 list Leon
  • 8 not listed
  • 56 not checked yet

Wellcare

7 plans list Leon.

7plans
  • Wellcare Fidelis Assist (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMO-POSDrug coverage3 starsH5599-002-000Medicare.gov
    $0a month
  • Wellcare Fidelis Patriot Simple (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMO-POSNo drug coverage3 starsH5599-010-000Medicare.gov
    $0a month
  • Wellcare Fidelis Simple (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMO-POSDrug coverage3 starsH5599-004-000Medicare.gov
    $0a month
  • Wellcare Dual Access Open (PPO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    PPOFor people with Medicare and MedicaidDrug coverage3 starsH2775-112-000Medicare.gov
    $0a month

3 more Wellcare plans haven't been checked yet.

Anthem Blue Cross and Blue Shield HP · Wellpoint

5 plans list Leon.

5plans
  • Anthem Veteran 2 (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMO-POSNo drug coverage5 starsH6988-008-000Medicare.gov
    $0a month
  • Anthem Medicare Advantage 3 (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMO-POSDrug coverage5 starsH6988-007-000Medicare.gov
    $70a month
  • Anthem Medicare Advantage (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMODrug coverage3 starsH8432-011-000Medicare.gov
    $96a month
  • Anthem HealthPlus Full Dual Advantage (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMOFor people with Medicare and MedicaidDrug coverage3 starsH8432-042-000Medicare.gov
    $40.50a month

2 more Anthem Blue Cross and Blue Shield HP plans haven't been checked yet.

UnitedHealthcare

4 plans list Leon.

4plans
  • UHC Dual Complete NY-Q001 (HMO-POS D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    HMO-POSFor people with Medicare and MedicaidDrug coverage4 starsH3387-015-002Medicare.gov
    $0a month
  • UHC Dual Complete NY-S001 (PPO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    PPOFor people with Medicare and MedicaidDrug coverage4.5 starsH2001-063-002Medicare.gov
    $19.40a month
  • UHC Dual Complete NY-S002 (HMO-POS D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    HMO-POSFor people with Medicare and MedicaidDrug coverage4 starsH3387-014-002Medicare.gov
    $31.70a month
  • UHC Dual Complete NY-YL (HMO-POS D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    HMO-POSFor people with Medicare and MedicaidDrug coverage4 starsH3387-013-000Medicare.gov
    $40.50a month

11 more UnitedHealthcare plans haven't been checked yet.

Healthfirst Medicare Plan

3 plans list Leon.

3plans
  • Healthfirst Increased Benefits Plan (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    HMODrug coverage3.5 starsH3359-019-000Medicare.gov
    $17.10a month
  • Healthfirst Signature (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    PPODrug coverage3 starsH9678-002-000Medicare.gov
    $155a month
  • Healthfirst Life Improvement Plan (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702

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

    HMOFor people with Medicare and MedicaidDrug coverage3.5 starsH3359-021-000Medicare.gov
    $40.50a month

VNS Health Medicare

3 plans list Leon.

3plans
  • VNS Health EasyCare (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMODrug coverage4 starsH5549-012-000Medicare.gov
    $25a month
  • VNS Health EasyCare Plus (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMOFor people with Medicare and MedicaidDrug coverage4 starsH5549-011-000Medicare.gov
    $23.60a month
  • VNS Health Total (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMOFor people with Medicare and MedicaidDrug coverage4 starsH5549-003-000Medicare.gov
    $40.50a month

EmblemHealth

2 plans list Leon.

2plans
  • EmblemHealth VIP Gold (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMODrug coverage4 starsH3330-021-003Medicare.gov
    $166a month
  • EmblemHealth VIP Gold Plus (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 400 W Main St, Ste 300, Babylon, NY, 11702
    • 471 Montauk Hwy, West Islip, NY, 11795
    • 1000 Montauk Hwy, West Islip, NY, 11795

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

    HMODrug coverage4 starsH3330-038-000Medicare.gov
    $216a month

2 more EmblemHealth plans haven't been checked yet.

Aetna Medicare

Not checked yet.

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

Clover Health

Not checked yet.

Devoted

Not checked yet.

Horizon Blue Cross Blue Shield of New Jersey

Not checked yet.

Humana

Not checked yet.

9 more Humana 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 Leon 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

Compare Supplement plans

3 practice locations

400 W Main St Ste 300
Babylon, NY 11702

NPI Registry

580 St. Johnsbury Rd.
Littleton, NH 03561

NPI Registry

1945 State Route 33
Neptune, NJ 07753

NPI Registry
NPI issued
2008
Registry record updated
Oct 25, 2024

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

Common questions

Which 2027 Medicare Advantage plans list Leon Kogan?

In Suffolk County, NY, Grafton County, NH and Monmouth County, NJ, 24 Medicare Advantage plans for 2027 list Leon in provider data from Medicare.gov or the carrier, including Wellcare Fidelis Assist (HMO-POS), Wellcare Fidelis Patriot Simple (HMO-POS) and Wellcare Fidelis Simple (HMO-POS). 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 Leon Kogan practice?

3 locations, including 400 W Main St Ste 300, Babylon, NY. All of them are listed on this page.

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

Call the member services number on your plan card and give them the NPI 1598916223, or ask a Silverpath advisor to check for you. It's free.

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

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Is this your practice?

Patients can use Silverpath to find practices and check plan networks in Suffolk County, NY, Grafton County, NH and Monmouth County, NJ. 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 2024-10-25). Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 14, 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 Leon Kogan 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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