02/10/2026
United Healthcare Medicare Advantage HMO plans require a referral to see a specialist as of April 1, 2026. THIS INCLUDES SPECIALISTS YOU ARE ALREADY ESTABLISHED WITH! Examples but not limited to-
*Cardiology
*Neurology
*Endocrinology
If you have an advantage plan and see a specialist, UHC needs to approve before you can see your specialist. Mullock Health Care will need to send a referral request to avoid denied payments to your specialist.
**Traditional Medicare does not require referrals, no changes or additional processing required. This is only for Advantage Plans.