[jac241]

Many studies comparing NP and physician outcomes will have the NPs under supervision by physicians, which is ideally how they would be used, but in practice the true supervision level varies widely. I wouldn't see an NP for my care personally, and I doubt there are many physicians who would. The wait time to see primary care physicians is typically less than a week in most places and would be worth it. If you're experiencing something you feel is too serious to wait a week I would visit the ER (and make sure to ask to be seen by the physician also). It's your health. Personally I would only trust mine to the people who are the experts in their subjects, and not those who have less training and can switch between specialties without any additional training.

I don't have anything against NPs when the supervision is close, but more and more doctors are put into positions where they are acting as liability sponges for de-facto independent NPs/PAs.

Here are a few studies - (CRNA) We found an increased risk of adverse disposition in cases where the anesthesia provider was a nonanesthesiology professional. https://www.ncbi.nlm.nih.gov/pubmed/22305625

Comparing urgent care visits between MD/DOs and Midlevels. Doctors saw more complicated patients, addressed more complaints and deprescribed more. https://link.springer.com/article/10.1007/s11606-021-06669-w

NPs/PAs practicing in states with independent prescription authority were > 20 times more likely to overprescribe opioids than NPs/PAs in prescription-restricted states. https://pubmed.ncbi.nlm.nih.gov/32333312/

Both 30-day mortality rate and mortality rate after complications (failure-to-rescue) were lower when anesthesiologists directed anesthesia care. https://pubmed.ncbi.nlm.nih.gov/10861159/

Compared with dermatologists, PAs performed more skin biopsies per case of skin cancer diagnosed and diagnosed fewer melanomas in situ, suggesting that the diagnostic accuracy of PAs may be lower than that of dermatologists. https://www.ncbi.nlm.nih.gov/pubmed/29710082

Advanced practice clinicians are associated with more imaging services than PCPs for similar patients during E&M office visits. https://jamanetwork.com/journals/jamainternalmedicine/fullar...

Nonphysician clinicians were more likely to prescribe antibiotics than practicing physicians in outpatient settings, and resident physicians were less likely to prescribe antibiotics. https://www.ncbi.nlm.nih.gov/pubmed/15922696

The quality of referrals to an academic medical center was higher for physicians than for NPs and PAs regarding the clarity of the referral question, understanding of pathophysiology, and adequate prereferral evaluation and documentation. https://www.mayoclinicproceedings.org/article/S0025-6196(13)...

Resident teams are economically more efficient than MLP teams and have higher patient satisfaction. https://www.ncbi.nlm.nih.gov/m/pubmed/26217425/

[zeagle]

I will add my anecdotal perspective as a rheumatologist at a tertiary care centre to your second last reference. I have a lot of respect for the work my NP/PA colleagues do, particularly on the ward. Yet I see a notable difference in the quality of referrals from MDs vs. most NPs/PAs whether it be from clinic, ER, or ward. With some exception it's often please see for [subjective complaint], a + random test that was checked, and query [disease that goes with that antibody] or a misunderstanding of what I see in my discipline. Not to say that MDs have it perfect but I'm not sure if it's the shorter training, more algorithmic focus, less confidence in their physical exam that drives this. As a healthy 20 year old I'd have said an NP/PA is great for primary care but I just don't see it as a solution as people age and get more medically complicated.