Form 5500 · Employee benefit plan · DAKOTA DUNES, SD
CNOS, P.C.
The filing calls this plan CNOS, P.C. WELFARE PLAN.
CNOS, P.C. of DAKOTA DUNES, SD files a Form 5500 with the U.S. Department of Labor disclosing its employee benefit plan. Its broker of record is MARSH & MCLENNAN AGENCY. Coverage is written through WELLMARK BLUE CROSS AND BLUE SHIELD OF SOUTH DAKOTA and 3 other carriers. The plan's most recent policy period ended in December.
Sourced from U.S. DOL EFAST2 Form 5500 · EIN 42-1480644 · plan 506 · plan year 2025, filed Jul 24, 2026
Get an email when this employer files a new Form 5500, and again about four months before its plan renews.
291 other employer plans in South Dakota have policy years ending in December. See the full list on the renewal calendar, or ask for it in Claude or ChatGPT.
How this plan is funded
Fully insured as reported
The filing reports medical coverage through an insurance contract on Schedule A, and no money paid for benefits by the plan itself.
A stop-loss policy appears on a Form 5500 only when the plan itself is the beneficiary, or the premiums are paid from plan money. Many employers buy stop-loss and never report it here. So a plan with no stop-loss on its filing may still have it.
Benefits declared on this filing
Also declared: other welfare.
Declared benefits are the plan’s own line 8b codes on Form 5500. “Not on Schedule A” means no insured contract for that line appears on this filing. That usually means the benefit is self-funded, or it sits under a different plan number.
Where a line has more than one insured contract, the carrier and the covered figure are the largest contract's by premium. The contracts are not added up: a pharmacy carve-out and the medical carrier beside it cover the same people.
Persons covered is the count the carrier filed for that policy at the end of its policy year, and it can include dependents. Participants is the plan's own count at the start of its plan year. The two count different people, so a covered figure can be larger.
Plan brief
Schedule A lists 5 insured contracts covering health, dental, vision, life, disability and stop-loss; the largest, with WELLMARK BLUE CROSS AND BLUE SHIELD OF SOUTH DAKOTA, covers 248 people.
The filing lists a stop-loss contract. On its own that does not settle whether the plan pays its own claims.
Reported premium across the insured contracts is $4,065,925, with $48,509 in disclosed broker commissions — about 1.2% of premium.
The most recent policy period ended in December, and the plan year ends December 31. Group contracts typically renew on that annual cycle.
MARSH & MCLENNAN AGENCY is the broker of record on 1 of the 5 contracts; the rest name a different broker or none.
Schedule A insurance contracts
| Carrier | Benefits | Covered | Renews | Premium | Commission |
|---|---|---|---|---|---|
| SUN LIFE ASSURANCE COMPANY OF CANADA | Life, Disability | 320 | Jan 1, 2026 | $248,681 | $28,508 |
| SUN LIFE ASSURANCE COMPANY OF CANADA | Disability | 42 | Jan 1, 2026 | $33,452 | $11,336 |
| FIDELITY SECURITY LIFE INSURANCE COMPANY | Vision | 207 | Jan 1, 2026 | $45,887 | $4,589 |
| DELTA DENTAL OF SOUTH DAKOTA | Dental | 261 | Jan 1, 2026 | $327,604 | $4,076 |
| WELLMARK BLUE CROSS AND BLUE SHIELD OF SOUTH DAKOTA | Health, Stop-loss | 248 | Jan 1, 2026 | $3,410,301 | $0 |
Premium and claims on this contract
WELLMARK BLUE CROSS AND BLUE SHIELD OF SOUTH DAKOTA, contract 458. For the contract year on this filing, the carrier reported $3,410,301 in premium earned and $2,362,961 in claims incurred. Dividing one by the other gives 69%.
- WELLMARK BLUE CROSS AND BLUE SHIELD OF SOUTH DAKOTA, contract 458 reported $1,047,341 in retention.
Retention is what the carrier kept of the premium after claims, as reported: administration, commissions and other charges.
Only experience-rated contracts report these figures, so most filings leave them blank.
Covered = persons covered at policy year end, as filed on Schedule A for that policy — often certificates or one class, not the whole plan. Premium = the filing’s own premium/charges figure; “—” means not credibly reported.
Other plans filed by this employer
How this plan compares
Subscribers see how this compares with similar plans in South Dakota. A subscription also adds this plan's filing history and the renewal calendar for its state. See plans and prices
Without an account you can open 10 employer, broker and carrier pages a day, including through an AI assistant, and 50 a day with a free account. Paid plans are what keep these records free to read.
Renewal calendar
291 other employer plans in South Dakota are January 1 renewals (policy year ends December).
Their policy years end in December, like this plan’s, so most renew January 1. The calendar lists every insured group by renewal date and state, with broker of record, carrier and disclosed commission. You can preview the five largest in each month for free.
Claude & ChatGPT
Look up records from Claude or ChatGPT
Add Form5500Lookup to Claude or ChatGPT and ask about any employer, broker or carrier in plain English. Lookups are free. Renewal lists, full books of business and exports are included with a subscription.
Building a list or a tool from these records? Match a list you already have from $29 per 1,000 records, or license the whole dataset as a weekly file for $499 a month. See both
More employer plans in South Dakota — largest plans, brokers, carriers and renewal months.