re: does anyone who knows what theyre doing invest heavily in dividend stocks?

Oh, goodness.
I say this because all of the companies/trusts that you posted are complete shite. One has decreased by over 100% since 2010, another hasn't raised it's dividend in over 10 years, and MOST of them are traded at rate well under 50k per day! Nothing about these companies are solid. Another is a penny stock, and one of them has negative earnings per share...These are not companies that attract drip investors.

Absurd dividends are not a good indicator. GNI for an example has a yield of 45% because the stock is tanking...and fast! Also, its average volume is 35k per day!!! Don't mess with anything that seldom gets traded!

**Look for solid companies (that you're familiar with!) in the 2-4% range for consistent dividends and a little growth (Proctor and Gamble, Johnson and Johnson, Exxon, 3M, Unilever, the Southern Company, Coca-Cola, McDonalds, Philip Morris). It doesn't matter how high the dividend is (see SDRL last month). It's more about how long the company has paid the dividend and consistent annual dividend increases.

Symbol:
PG
JNJ
XOM
MMM
UL
SO
KO
MCD
PM

You're a physician...pick a few companies to drip or choose a fund or an ETF and pour money into it/them. I like the commission free international ETFs offered through TD Ameritrade.

Full disclosure: For better or worse, within the past six months I have initiated DRIPs with Dow Chemical, General Mills, Intel, and Ford.