Okay, so this is a perfect example of how simple critical thinking skills and a google search could debunk a rumor.
Step I -- Critical thinking exercise:
What would be the educational or programatic advantage to limiting DO's in a program? What would a program GAIN by such a tactic? Why would this make sense from an accreditational standards point of view? The ACGME exists to make sure that residencies appropriately train physicians within their specialty. They are accountable to stakeholders, the public, the federal government to make sure this happens. They're responsible for ensuring that residents are competent in six domains:
1. Patient care that is compassionate, appropriate, and effective for the
treatment of health problems and the promotion of health;
2. Medical Knowledge about established and evolving biomedical, clinical,
and cognate sciences, as well as the application of this knowledge to
patient care;
3. Practice-based learning and improvement that involves the investigation
and evaluation of care for their patients, the appraisal and assimilation of
scientific evidence, and improvements in patient care;
4. Interpersonal and communication skills that result in the effective
exchange of information and collaboration with patients, their families,
and other health professionals;
5. Professionalism, as manifested through a commitment to carrying out
professional responsibilities, adherence to ethical principles, and
sensitivity to patients of diverse backgrounds;
6. Systems-based practice, as manifested by actions that demonstrate an
awareness of and responsiveness to the larger context and system of health
care, as well as the ability to call effectively on other resources in the
system to provide optimal health care.
So, it doesn't make sense that limiting applicants based upon the medical degree type awarded would further this mission at all, does it? Would stakeholders or the public be better served by such policy?
Probably not.
Step II -- Google search exercise:
Go to the ACGME website. Read the "Common Program Requirements" document for ANY residency program. Is there any mention of a "quota" on DO's?? No.
Rumor debunked. No go find the person who told you this and help correct their thinking on the topic.