I've listened to Doctor Dawn for years in the Monterey Bay area, and this podcast has been a boon, letting me listen during commute time instead of on Saturday mornings with my kids yammering for pancakes. Dr. Motyka has a really refreshing demeanor as an open-minded, data-driven scientist - standard medicine, accupuncture, herbs, Traditional Chinese Medicine all get held up for their strengths and weaknesses for addressing medical issues.
She's also extremely articulate on medical meta-issues like the impact of health-care legislation, insurance company policies, and litigation on the macro environments that physicians operate in. A recent show discussed Standard of Care, and how it's a broad set of guidelines that isn't right for every patient, but that is almost impossible to sidestep when nearly any jury will decide that anything other than 'standard of care' will constitute malpractice.
Dr. Motyka is really not afraid of letting the terminology fly during interviews, and I very much like that the show never gets dumbed down.
On a technical side, this is also one of the best produced podcasts that I subscribe to. The sound engineering and level balancing is always noticably good - as in you really don't notice sound quality, you just listen to the content.