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Generalizations are generalizations, but I've noticed a few things just during the course of the third year:
-Midlevel providers are attractive to hospital systems for obvious reasons. Advantages or disadvantages aside, as @Tired mentions, there are strong forces at work which oppose the "longer training = better results" argument, irrespective of whether it's true or not.
-PAs, in general, tend to recognize their scope of practice and when they get into hot water. They tend to rely more on physicians when necessary while practicing independently when able. They tend to be knowledgable and well-trained, and I've worked with several PAs that have been excellent teachers on rotations.
-APNs, on the other hand, seem to be more variable in quality. Some, obviously, are very good and indistinguishable from a PA or possibly even an MD/DO. Others, though, are clearly unimpressive, and it's somewhat concerning that they're able to see patients somewhat independently. They seem less accepting of the "hierarchy" and more likely to do their own thing. While certainly not always true, I've found that, in general, their knowledge base tends to be weaker than those of PAs and MDs/DOs as they seem to rely more on experience than theory, if that makes sense.
-CRNAs are much the same. Some are very good, others not so much. I think there's no doubt that there's a difference between CRNAs and anesthesiologists. CRNAs tend to be more reactive and mechanistic, while anesthesiologists, again, tend to be more theoretical.
The real problem MDs/DOs have is that the reality is that an overall majority of care can likely be provided by midlevels with an efficacy equivalent to that of physicians in 95% of cases. This is because common things being common and zebras being just that, diagnostic skill not withstanding you're likely to get a basic diagnosis right if only because of epidemiological realities. Where I think physicians can make their value known is in their ability to detect those other 5% of cases - the things that are imitators or complicated or less obvious. That's when the lack of in-depth training becomes obvious. The real question is whether policy makers, who ultimately hold the money, will buy into that argument. I think it's particularly strong in the realm of primary care; as someone else mentioned, I have no doubt that high-quality chronic care no doubt has a significant impact on overall patient health, even if those distinctions might be difficult or impossible to demonstrate quantitatively. There's also the problem of non-medical people reading medical literature and not interpreting it correctly. This is how studies by the AANP demonstrating equivalent SBPs and blood glucose levels between NPs and MDs/DOs are convincing to policy makers. We know that those findings are absolutely useless and don't demonstrate anything about the actual quality of care being provided, but if you're a layman, how are you supposed to know that?
Ultimately I do think patients stand the risk of being harmed should they be managed by less well-trained providers, but the difficulty is 1) quantifying that distinction and 2) making that argument without coming across as elitist or "protecting your turf." In both cases physicians lose from the outset.
-Midlevel providers are attractive to hospital systems for obvious reasons. Advantages or disadvantages aside, as @Tired mentions, there are strong forces at work which oppose the "longer training = better results" argument, irrespective of whether it's true or not.
-PAs, in general, tend to recognize their scope of practice and when they get into hot water. They tend to rely more on physicians when necessary while practicing independently when able. They tend to be knowledgable and well-trained, and I've worked with several PAs that have been excellent teachers on rotations.
-APNs, on the other hand, seem to be more variable in quality. Some, obviously, are very good and indistinguishable from a PA or possibly even an MD/DO. Others, though, are clearly unimpressive, and it's somewhat concerning that they're able to see patients somewhat independently. They seem less accepting of the "hierarchy" and more likely to do their own thing. While certainly not always true, I've found that, in general, their knowledge base tends to be weaker than those of PAs and MDs/DOs as they seem to rely more on experience than theory, if that makes sense.
-CRNAs are much the same. Some are very good, others not so much. I think there's no doubt that there's a difference between CRNAs and anesthesiologists. CRNAs tend to be more reactive and mechanistic, while anesthesiologists, again, tend to be more theoretical.
The real problem MDs/DOs have is that the reality is that an overall majority of care can likely be provided by midlevels with an efficacy equivalent to that of physicians in 95% of cases. This is because common things being common and zebras being just that, diagnostic skill not withstanding you're likely to get a basic diagnosis right if only because of epidemiological realities. Where I think physicians can make their value known is in their ability to detect those other 5% of cases - the things that are imitators or complicated or less obvious. That's when the lack of in-depth training becomes obvious. The real question is whether policy makers, who ultimately hold the money, will buy into that argument. I think it's particularly strong in the realm of primary care; as someone else mentioned, I have no doubt that high-quality chronic care no doubt has a significant impact on overall patient health, even if those distinctions might be difficult or impossible to demonstrate quantitatively. There's also the problem of non-medical people reading medical literature and not interpreting it correctly. This is how studies by the AANP demonstrating equivalent SBPs and blood glucose levels between NPs and MDs/DOs are convincing to policy makers. We know that those findings are absolutely useless and don't demonstrate anything about the actual quality of care being provided, but if you're a layman, how are you supposed to know that?
Ultimately I do think patients stand the risk of being harmed should they be managed by less well-trained providers, but the difficulty is 1) quantifying that distinction and 2) making that argument without coming across as elitist or "protecting your turf." In both cases physicians lose from the outset.