Before there was a doctorates degree there was a bachelors degree requirement only. After graduation pharmacists became licensed thus giving them RPh. Now the next point NOWADAYS every institution is required to show proof of the pharmacists licenses if they are hired to appointed agencies, so that's a given no need for RPh. Now to restate my earlier points a doctorates degree is quite a big difference from a bachelors. And in these days it should be presented if earned. So while PharmD is in place of that now, why is it that DPH cannot be instead and since hospital settings allow you to "tack" pharmD you have the option of tacking DPH. Institutions really got this one wrong in my opinion.
Also I want to point out that the word doctor is used for multiple settings university professors are called Dr.name...etc and if people do not no the difference between a physician and pharmacist when referring to us as doctors they have got more issues to worry about.
And lastly Doctor of public health is actually abbreviated DrPH in all health settings and docotor of plant health/medicine is actually DPM. And philosophy is not in a health setting is only given Ph.D status. So DPH is not taken in a health setting.