Provider profile

Gregory DownerMD

Internal Medicine, Nephrology

NPI 1285635367
1250 Mercy Dr, Suite 101, Muskegon, MI 49444231-733-1912

Check your plan

Medicare Advantage plans for Muskegon County, MI.

Checked Oct 25, 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 68 Medicare Advantage plans we show for Muskegon County, MI in 2027

  • 15 list Gregory
  • 53 not listed

Health Alliance Plan by Henry Ford Health

10 plans list Gregory.

10plans
  • HAP Medicare Connect (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    HMODrug coverage4 starsH2354-015-000Medicare.gov
    $0a month
  • HAP Medicare Explore (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    PPODrug coverage3.5 starsH2322-011-000Medicare.gov
    $0a month
  • HAP Medicare MedicalAccess (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    HMONo drug coverage4 starsH2354-019-000Medicare.gov
    $0a month
  • HAP Medicare Prime (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    PPODrug coverage3.5 starsH2322-016-000Medicare.gov
    $0a month

Wellcare

4 plans list Gregory; not listed on 1 other plan.

4plans
  • Wellcare Assist (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    HMO-POSDrug coverage3 starsH5475-038-000Medicare.gov
    $0a month
  • Wellcare Giveback (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    HMO-POSDrug coverage3 starsH5475-031-000Medicare.gov
    $0a month
  • Wellcare Simple (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    HMO-POSDrug coverage3 starsH5475-026-000Medicare.gov
    $0a month
  • Wellcare Meridian Health Dual Access (HMO-POS D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1250 Mercy Dr, Ste 101, Muskegon, MI, 49444

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

    HMO-POSFor people with Medicare and MedicaidDrug coverage3 starsH5475-001-000Medicare.gov
    $0a month

Humana

1 plan lists Gregory; not listed on 10 other plans.

1plan
  • Humana Gold Choice H8145-006 (PFFS)

    Source: Humana provider directory.

    The source lists the clinician on this plan, but hasn't identified a covered office. Confirm your office before enrolling.

    PFFSDrug coverage4 starsH8145-006-000Medicare.gov
    $60a month

Aetna Medicare

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

Blue Care Network

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

Blue Cross Blue Shield of Michigan

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

Molina Healthcare of Michigan

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

Priority Health Medicare

Not listed on its 10 plans here. That isn't proof they're out of network.

Trinity Health Plan of Michigan

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

UnitedHealthcare

Not listed on its 11 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.

Can't find your plan?Tell us the plan you have, and a licensed Silverpath advisor will check whether Gregory 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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Practice location

1250 Mercy Dr, Suite 101
Muskegon, MI 49444

NPI Registry
NPI issued
2005
Registry record updated
Feb 17, 2014

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

Common questions

Which 2027 Medicare Advantage plans list Gregory Downer?

In Muskegon County, MI, 15 Medicare Advantage plans for 2027 list Gregory in provider data from Medicare.gov or the carrier, including HAP Medicare Connect (HMO), HAP Medicare Explore (PPO) and HAP Medicare MedicalAccess (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 Gregory Downer take Health Alliance Plan by Henry Ford Health Medicare Advantage plans?

Medicare.gov provider data lists Gregory on 10 Medicare Advantage plans for 2027 in Muskegon County, MI, including HAP Medicare Connect (HMO) and HAP Medicare Explore (PPO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Health Alliance Plan by Henry Ford Health before you enroll.

Does Gregory Downer take Wellcare Medicare Advantage plans?

Medicare.gov provider data lists Gregory on 4 Medicare Advantage plans for 2027 in Muskegon County, MI, including Wellcare Assist (HMO-POS) and Wellcare Giveback (HMO-POS). 1 other plan 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 Wellcare before you enroll.

Does Gregory Downer take Humana Medicare Advantage plans?

Humana's own provider directory lists Gregory on one Medicare Advantage plan for 2027 in Muskegon County, MI: Humana Gold Choice H8145-006 (PFFS). 10 other plans did not return a listing in the search area. Confirm with the office or Humana before you enroll.

Where does Gregory Downer practice?

1250 Mercy Dr, Suite 101, Muskegon, MI 49444.

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

Call the member services number on your plan card and give them the NPI 1285635367, or ask a Silverpath advisor to check for you. It's free.

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A Silverpath advisor can confirm Gregory'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 Gregory Downer on 42 plans from Aetna Medicare, Blue Care Network, Blue Cross Blue Shield of Michigan, Molina Healthcare of Michigan, Priority Health Medicare, Trinity Health Plan of Michigan and UnitedHealthcare in Muskegon County, MI. 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 2014-02-17). Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 25, 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 Gregory Downer 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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