First, I would encourage you to take a second look at what you are saying to your referral sources. By now, doctors are well aware of the items HME providers want to sell. Making them listen to a laundry list of things they already know is more likely to annoy them than to motivate them to help you. There are probably other HME providers in your market who are getting some referrals you would like to have. From a doctor's perspective, can you serve the doctor or his patients better than your competition? Your services need to be tangibly different / better than the competitions. Moreover, you have to be able to peak the doctor's interest in your sales strength in about 3 seconds. This is called your elevator speech.
For sales coaching, I recommend PowerShotTraining.com by Michael Giudicissi.
Bear in mind, that sales is only one tool in the marketing tool box. Understanding the whole of the marketing process and the other tools is essential for the development of a truly effective marketing plan. The "Sales vs. Marketing" article at
BMA ADVisor | gives a good overview of this point.
Along these lines, my agency has honed a marketing strategy that doubled referrals from doctors after 90 days. Because it focuses on referrals from physicians and other medical professionals, the strategy can work work for any health care provider seeking those types of referrals (home health care, home medical equipment, physical therapy, etc.). As long as you're not in competition with one of our clients, I'll send you a write up and samples explaining exactly what the referral doubling strategy is, how to do it, why it works, how it works, etc. Contact me / my staff through this page to get that Referral Doubling Strategy presentation:
Home Health Marketing