Out of network means you will pay more. Depending on your insurance plan there could be an extra deductible to be met or it could be higher copays or higher coinsurance amounts. You should call your insurance plan to understand the benefits for out of network services.
Regarding your difficulty making an appointment with the onc, what if you have the same difficulty reaching him/her when your mom is sick?
Stage 3 cc - dx Jan '14 age 53, cea 2.9
t2n2m0, KRAS mutant, MSS
Folfox Feb - Aug '14
Nov '14 cea 27.7 -2 liver masses
Dec '14 left lobectomy and HAI
Jan '15 FUDR and FOLFIRI
Aug '15 fudr done, liver clear, add avastin for lungs. Cea 4.3
Feb '16 CEA rising
May '16 2 wk break then drop Iri for 6 weeks.
Jul '16 cancer grew, constricted main bile duct. Stent inserted. On break till jaundice clears. CEA climbing. Doing reduced Folfox. Allergic to Oxali.
Sep'16 chemo failed. Trial or hospice?