What is a D-SNP?
A dual eligible special needs plan (D-SNP) is a kind of Medicare Advantage plan that only people with both Medicare and Medicaid can join. Like other special needs plans, it must include Medicare drug coverage (Part D). Medicare.gov says D-SNPs can help coordinate your Medicare and Medicaid benefits.
A D-SNP replaces Original Medicare for your Medicare benefits; it does not replace SoonerCare. SoonerCare still pays after Medicare for what it covers, and if you are a QMBP, providers may not bill you for Medicare cost sharing. See SoonerCare and Medicare for how the two programs work together.
Who can join a D-SNP in Oklahoma?
- You have Medicare Part A and Part B.
- You have SoonerCare. Each D-SNP says which SoonerCare categories it accepts, such as full SoonerCare or a Medicare Savings Program like QMBP or SLMB.
- You live in the plan's service area, which is set county by county.
Not sure which SoonerCare program you have? Your OKDHS approval letter says, or call the SoonerCare Helpline at 1-800-987-7767. The Medicare cost programs are explained on Medicare Savings Programs in Oklahoma.
How many special needs plans are there in Oklahoma?
For 2027, CMS plan data show 27 special needs plans in Oklahoma. That count includes every kind of special needs plan (for people with Medicaid, with certain chronic conditions, or living in an institution), not only D-SNPs, and most are offered in only some counties. A few examples from the same CMS data:
| County | Special needs plans, 2027 | Medicare Advantage plans open to everyone, 2027 |
|---|---|---|
| Oklahoma | 24 | 35 |
| Tulsa | 23 | 32 |
| Muskogee | 16 | 25 |
| Comanche | 10 | 19 |
| Le Flore | 10 | 19 |
| Cimarron | 3 | 0 |
In seven Panhandle and western counties (Beaver, Cimarron, Ellis, Harmon, Harper, Roger Mills and Texas), special needs plans are the only Medicare Advantage plans offered for 2027; see Oklahoma plans ending in 2027. Your own county's numbers are on its page under Oklahoma counties. Which D-SNPs you can actually join depends on your county and your SoonerCare program.
How do D-SNPs work with SoonerCare?
Federal law requires every company offering a D-SNP to have a written contract with the state Medicaid agency, which in Oklahoma is the Oklahoma Health Care Authority (OHCA). Under 42 CFR 422.107, that contract must spell out how the plan coordinates SoonerCare benefits, which SoonerCare categories it enrolls, the cost-sharing protections it covers, how it shares information about SoonerCare providers, how it checks your SoonerCare eligibility, and its service area.
What makes Oklahoma different from many states:
- SoonerCare stays separate. OHCA keeps people with both Medicare and Medicaid out of SoonerSelect managed care and out of SoonerCare Choice. Your SoonerCare benefits keep being paid by OHCA directly, not through the D-SNP.
- Coordination-only plans. A 2024 Justice in Aging review of CMS data found that all Oklahoma D-SNPs were coordination-only plans, not fully integrated (FIDE) or highly integrated (HIDE) plans, and that about 4 in 10 Oklahomans with both Medicare and Medicaid were in a D-SNP.
- Two cards, two sets of rules. You'll use your D-SNP card for Medicare services and keep your SoonerCare card for SoonerCare. Appeals about Medicare services go through the plan; appeals about SoonerCare go through OHCA.
- Long-term care stays with SoonerCare. Nursing home care and the ADvantage waiver are SoonerCare benefits. Ask a D-SNP how its care coordinators work with your ADvantage case manager before you join.
Tip: Before you change plans, check that your doctors, hospital and pharmacy are in the D-SNP's network, and that those providers also accept SoonerCare so SoonerCare can pay its share.
When can dual eligibles change plans?
People with Medicare and SoonerCare have more chances to change coverage than most people with Medicare:
- Annual Enrollment Period: October 15 to December 7, for coverage that starts January 1. Anyone with Medicare can change plans then.
- Once a month, with Medicaid or Extra Help: you can switch to a different standalone Medicare drug plan, or leave a Medicare Advantage plan with drug coverage for Original Medicare with a standalone drug plan (42 CFR 423.38(c)(4)). Since 2025, this monthly option no longer lets you move from one Medicare Advantage plan to another.
- Once a month, into an integrated plan: people with full Medicaid can also join a fully integrated, highly integrated or applicable integrated D-SNP once a month, but only where the plan's Medicare and Medicaid enrollment is aligned (42 CFR 423.38(c)(35)). Because Oklahoma doesn't enroll dual eligibles in SoonerCare managed care, ask any plan whether it qualifies before counting on this option.
- After a SoonerCare change: you have 3 months after you gain, lose or change Medicaid or Extra Help status, or are notified of it, to make a change (42 CFR 423.38(c)(9)).
Monthly changes take effect on the first day of the next month. If your plan is leaving the market for 2027, you also have a special enrollment period that runs to February 28, 2027; choose by December 31 for no gap. See Oklahoma plans ending in 2027 and Medicare enrollment periods.
If you lose SoonerCare
You can stay in a special needs plan only while you still meet its conditions, so a missed SoonerCare renewal can cost you your D-SNP. If the plan expects you to regain eligibility within 6 months, federal rules let it keep you for at least 30 days and up to 6 months (42 CFR 422.52(d)). If you lose your special needs status, Medicare gives you a special enrollment period to choose other coverage. Answer every renewal letter from OKDHS and OHCA.
Comparing D-SNPs in your county
To compare the D-SNPs and other Medicare plans from the companies they work with in your county, check whether your doctors are in network, and understand how a plan works with your SoonerCare, you can request a call from a licensed insurance agent. You can also see plans for your ZIP code. Benefits Life is a non-government website and has no connection to OHCA or OKDHS, which decide SoonerCare eligibility.
Sources
- Medicare.gov — Special Needs Plans
- eCFR — 42 CFR 422.107, requirements for dual eligible special needs plans (state Medicaid agency contract)
- eCFR — 42 CFR 422.52(d), deemed continued eligibility
- eCFR — 42 CFR 423.38, enrollment periods (paragraphs (c)(4), (c)(9) and (c)(35))
- Medicare.gov — Special Enrollment Periods
- OHCA — SoonerSelect choice counseling FAQs (dual eligibles excluded)
- OHCA — OAC 317:25-7-13, SoonerCare Choice enrollment ineligibility
- Justice in Aging — Oklahoma D-SNPs at a Glance (2024)
- CMS — CY2027 Landscape file, November 2026 (Oklahoma special needs plan and Medicare Advantage plan counts)
Frequently asked questions
Who can join a D-SNP in Oklahoma?
You must have Medicare Part A and Part B, have SoonerCare (full SoonerCare or a Medicare Savings Program such as QMBP, depending on the plan), and live in the plan's service area. Each D-SNP's contract with the Oklahoma Health Care Authority lists which SoonerCare categories it accepts.
Does a D-SNP replace SoonerCare?
No. A D-SNP replaces Original Medicare for your Medicare benefits. SoonerCare still pays after Medicare for what it covers, and your ADvantage waiver or nursing home coverage still comes through SoonerCare. Keep your SoonerCare card and renew SoonerCare on time.
Does Oklahoma have integrated D-SNPs?
Not under a combined Medicare-and-Medicaid plan. Oklahoma does not enroll people with both Medicare and Medicaid in SoonerCare managed care; OHCA keeps dual eligibles out of SoonerSelect and SoonerCare Choice. A 2024 Justice in Aging review of CMS data found that all Oklahoma D-SNPs were coordination-only plans, not fully or highly integrated plans.
How often can I change plans if I have Medicare and SoonerCare?
Besides the Annual Enrollment Period (October 15 to December 7), people with Medicaid or Extra Help can switch standalone Part D plans, or leave a Medicare Advantage plan for Original Medicare with a standalone Part D plan, once a calendar month. A separate monthly option to join an integrated D-SNP applies only to fully integrated, highly integrated or applicable integrated plans with aligned Medicaid enrollment. Changes start the first day of the next month.
What happens if I lose SoonerCare while I'm in a D-SNP?
Federal rules let a plan keep you for 30 days up to 6 months if it expects you to regain eligibility. If you lose your special needs status, you get a special enrollment period to choose other Medicare coverage. You also have 3 months after any change in your Medicaid or Extra Help status to change drug coverage.
Medicare in your Oklahoma county
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