Mary OneilMD
Internal Medicine, Rheumatology
2027 Medicare Advantage
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Medicare Advantage plans for Erie County, NY.
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 39 Medicare Advantage plans for 2027
Carrier directories and Medicare.gov provider data list Mary on these plans. Review each plan's covered offices before enrolling. One directory didn't answer this time; we'll try it again.
The 56 Medicare Advantage plans we show for Erie County, NY in 2027
- 39 list Mary
- 14 not listed
- 3 not checked yet
Wellcare
10 plans list Mary.
Wellcare Assist Open (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Fidelis Assist (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Fidelis Patriot Simple (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthWellcare Fidelis Simple (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a month
Aetna Medicare
8 plans list Mary.
Aetna Medicare Eagle Giveback (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Signature (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthAetna Medicare Elite (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$35a month
Independent Health
6 plans list Mary.
Independent Health's Encompass 65 (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthIndependent Health's Encompass 65 RED 042 (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$49a monthIndependent Health's Medicare Passport Connect (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$81a monthIndependent Health's Encompass 65 RED 044 (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$110a month
Excellus Health Plan, Inc
5 plans list Mary.
Univera Medicare Freedom (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthUnivera SeniorChoice Basic (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthUnivera SeniorChoice Advanced (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$75.40a monthUnivera SeniorChoice Value Plus (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$93.30a month
Highmark Blue Cross Blue Shield or Highmark Blue Shield
4 plans list Mary.
Community Blue Medicare HMO Signature (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthFreedom Valor (PPO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthSenior Blue 601 (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$0a monthCommunity Blue Medicare HMO Distinct (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Cheektowaga, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$68a month
2 more Highmark Blue Cross Blue Shield or Highmark Blue Shield plans haven't been checked yet.
MVP HEALTH CARE
3 plans list Mary.
MVP Medicare Preferred Gold without Part D (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
This result applies to these offices. Other locations are not confirmed.
$0a monthMVP Medicare WellValue with Part D (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
This result applies to these offices. Other locations are not confirmed.
$217a monthMVP Medicare Preferred Gold with Part D (HMO-POS)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
This result applies to these offices. Other locations are not confirmed.
$277a month
Nascentia Health Plus
2 plans list Mary.
Nascentia Dual Advantage (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
This result applies to these offices. Other locations are not confirmed.
$27a monthNascentia Medicaid Advantage Plus (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
This result applies to these offices. Other locations are not confirmed.
$30.30a month
Excellus Health Plan Community Care LLC
1 plan lists Mary.
Univera Medicare Dual (HMO D-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 2355 Union Rd, Ste 100, Cheektowaga, NY, 14227
- 2507 Harlem Rd, Buffalo, NY, 14225
- 400 International Dr, Williamsville, NY, 14221
This result applies to these offices. Other locations are not confirmed.
$26.60a month
1 more Excellus Health Plan Community Care LLC plan hasn't been checked yet.
Humana
Not listed on its 3 plans here. That isn't proof they're out of network.
UnitedHealthcare
Not listed on its 8 plans here. That isn't proof they're out of network.
VNS Health Medicare
Not listed on its 3 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 Mary 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 25, 2026
Where they practice
Practice location
- NPI issued
- 2006
- Registry record updated
- Oct 11, 2022
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Mary Oneil?
In Erie County, NY, 39 Medicare Advantage plans for 2027 list Mary in provider data from Medicare.gov or the carrier, including Wellcare Assist Open (PPO), Wellcare Fidelis Assist (HMO-POS) and Wellcare Fidelis Patriot 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.
Does Mary Oneil take Wellcare Medicare Advantage plans?
Medicare.gov provider data lists Mary on 10 Medicare Advantage plans for 2027 in Erie County, NY, including Wellcare Assist Open (PPO) and Wellcare Fidelis Assist (HMO-POS). 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 Mary Oneil take Aetna Medicare Medicare Advantage plans?
Medicare.gov provider data lists Mary on 8 Medicare Advantage plans for 2027 in Erie County, NY, including Aetna Medicare Eagle Giveback (PPO) and Aetna Medicare Signature (HMO-POS). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Aetna Medicare before you enroll.
Does Mary Oneil take Independent Health Medicare Advantage plans?
Medicare.gov provider data lists Mary on 6 Medicare Advantage plans for 2027 in Erie County, NY, including Independent Health's Encompass 65 (HMO) and Independent Health's Encompass 65 RED 042 (HMO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Independent Health before you enroll.
Where does Mary Oneil practice?
2355 Union Rd Ste 100, Cheektowaga, NY 14227.
How do I confirm Mary is in my plan's network?
Call the member services number on your plan card and give them the NPI 1598790818, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
What patients see here today:
- Provider searches did not return a listing for Mary Oneil on 14 plans from Humana, UnitedHealthcare and VNS Health Medicare in Erie County, NY. 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.