Please confirm that ONS participates with your plan prior to scheduling an appointment. ONS insurance specialists will assist you in understanding the plan deductibles and coverage of your health care policy. To speak with an insurance specialist, call (203) 869-1145, ext. 279.

ONS Participates with the Following Insurances:

  • Aetna
    • Commercial Plans
    • Managed Medicare
  • Anthem BCBS of CT – All Plans
    • Commercial and exchange, including Yale-New Haven Network
    • Managed Medicare
  • Anthem BCBS (Outside CT)
    • Empire BCBS non-gatekeeper HMO/PPO
    • Cards with the “PPO” inside the Suitcase logo
  • Cigna / Great West
    • Commercial CT, MetroNY, and Cigna/MVP (except Harrison)
    • Cigna MetroNY.
  • ConnectiCare
    • Commercial, including exchange
    • Managed Medicare
  • EmblemHealth
    • GHI: CBP, National, Tristate (EPO, PPO); network access
    • HIP: Prime and Premium
    • With Connecticare: HMO/PPO/POS and Medicare
  • Oxford
    • Commercial Liberty and Freedom Plans
  • UnitedHealthcare
    • Commercial Charter, Choice, Core, Navigate, Nexus, PPO, Select and Doctors plan
    • Managed Medicare
  • Golden Rule
  • Harvard Pilgrim
    • Through United Shared Services – Harrison location only.
  • CT Medicare
  • CT Medicaid
  • Medicare Health Insurance
  • Workers Compensation – Connecticut and New York State
  • No-Fault


If you are required to obtain a valid referral before the date of your visit, please be sure you do so.  It is YOUR responsibility to understand your own plan’s guidelines.

Please check the back of your insurance card. If there is a box that says In-network Referral Required, you will need to get an insurance referral from an In-Network Primary Care Physician, Pediatrician or OBGYN.

Please note:  If a referral is required by your insurance company, you will need to obtain a referral before you can be seen.