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Business Office

The CNOS Central Billing Office is located at 575 Sioux Point Road, Dakota Dunes, SD 57049. CNOS has four patient account representatives to handle questions you may have regarding your statement. Please contact an account representative based on your last name:

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Last Name

Contact at CNOS

Phone Number

A - F

Sue

605-217-2621

G - L

Julie

605-217-2622

M - R

Chris

605-217-2623

S - Z

Deb

605-217-2629

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Insurance companies offer many different policies which have specific requirements regarding refferals and pre-authorization before services can be provided. CNOS accepts many managed care insurance plans. However, insurance contracts change frequently, so please check with your insurance company before your visit to confirm CNOS provider participation and what your plan requires. CNOS files all insurance claims as a courtesy to our patients.

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Current CNOS Contracts:

Accountable Healthcare
Avera Health Plans
Beech Street
Blue Cross Blue Shield Iowa - Wellmark, Alliance, Alliance Select
Blue Cross Blue Shield Nebraska - Traditional & Blue Preferred PPO
Blue Cross Blue Shield South Dakota - Traditional & Blue Select
Champus - Tricare
CorVel
Coventry HMO/PPO
DakotaCare HMO/PPO - Carewest
Exclusive HealthCare HMO
First Choice
First Health
Healthcare Preferred PPO
Iowa Health Systems
Medicare - Iowa, Nebraska, South Dakota & Railroad
Medicaid - Iowa, Nebraska, & South Dakota
Midland's Choice
MorrellCare PPO
Mutually Preferred PPO
National Provider Network
Select First
Sioux Valley Health Plan
TLC Advantage
Tricare-Champus
United HealthCare HMO/PPO

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According to our most recent contract information, CNOS is affiliated with the above listed plans. It is ultimately the patient's responsibility to check with their insurance company to determine provider participation as employer groups may vary regarding coverage for certain specialties.