Hello,
at your son's age, any speech language therapy would be likely to give him some benefit, so I would not say no to the services provided in your county. Special education services as defined in the law cover children from birth to age 21, so I am sure your county provides speech therapy to children your son's age. Speech therapists who work for the county special education system do have to focus on educational goals, however at 14 months, educational goals should be the same as 'clinical' goals unless your son has a feeding disorder. I strongly recommend you check out the website www.ldonline.org to learn more about special education law and policy. I also recommend visiting the American Speech Language and Hearing Association website www.asha.org to learn more about special education and speech language therapy. It sounds like you may need to push to get the services your son needs, and you be able to do so effectively when you have done your homework.
Private speech therapy is great if you can afford it, so you may wish to appeal your insurance company's decision. Don't give up until you have exhausted your options. Your pediatrician, the ENT, or the neurologist may be able to help by giving you an official referral.
Best Wishes
Rebecca Resnik