120 Meadowcrest Street, Ste. 420. Gretna, LA 70056. USA. Phone: 504-391-7547. Fax: 504-391-7549. We Are In-Network With OPP & LCMC Plans. The Following Is A Brief List Of Insurance Plans That We Are In Network As Participating Providers. The clinic accepts a wide range of insurance plans with the following exceptions:.