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As a probe for Joe Bidens The Mental Akaty continues, Kevin O’Connor, the former president’s private doctor, made his appearance in Washington, DC this week before the House Oversight Committee.
O’Connor sat for a closed door interview with committee staff and panel chair James Kommer, R-KY on Wednesday. – But O’Connor called for a fifth revision to all questions, except for his name, as previously reported by Fox News Digital.
This has led to many people wondering. What is the difference between a doctor of osteopathy (DO) and a doctor of medicine (MD)?
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Dr. Marc Siegel, senior medical analyst at Fox News, confirmed that both A DO and MD have the same abilities. Prostate cancer.
“He’s a family practitioner by doing it,” Siegel said. “Those training requires him to know how to screen for prostate cancer.”

The House Oversight Committee questioned former President Joe Biden’s White House doctor Kevin O’Connor what he showed with Biden here at this week’s hearing as part of an investigation into Biden’s mental decline. (Manuel Barth Senetta/AP)
Training as a do not “take away” medical training or medical education, said Siegel, an internist — it simply adds osteopathic methods such as manipulative treatment.
“I’m trained to prevent cognitive decline,” Siegel said. “I’m not an expert, but I certainly can screen for that, and the family practitioners who attended osteopathic schools should do that.”
He said, “Hey, he’s the guy to say, ‘Hey, [Biden’s] I got some Cognitive decline. Let me get a neurologist here. ”
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As a White House doctor, O’Connor’s responsibility was to address the president’s medical needs.
However, DOS hasMind, body, spirit According to Cleveland Clinic, the connections are.
MDS and DOS have similar schooling, do the same job, prescribe medicines and practice anywhere in the country. Still, according to the same source, DOS approaches medicines more comprehensively.

DOS and MDS can receive the same kind of training and perform the same modern treatment. However, DOS may be more comprehensively closer to drugs. (istock)
Cleveland Clinic defines osteopathic medicine as a patient-wide treatment and improving health through education and prevention.
DOS also receives additional training in Osteopathic Manipulation Medicine (OMM), a practical method for treating and diagnosing patients.
According to Cleveland Clinic, this alternative training and approach does not define physician practices because DOS uses “all kinds of modern treatments,” but MDS can also provide preventive care for the whole person.
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Do Training was first developed in 1892 by doctor Andrew Taylor Still (MD).
He believed in traditional medicine for treating spinal meningitis. Three of his childrenit had no effect – and developed the concept of osteopathic medicine.

“Osteopathic manipulation medicine, or osteopathic manipulation treatment (OMT), involves manipulating (touching and moving) muscles, bones and joints,” Cleveland Clinic said. (istock)
In the United States, as of 2023 there were 154 allopathic medical schools. Medicine, surgery Other interventions to treat the illness and 38 Oteopathic Medical Schools, according to the Cleveland Clinic.
A 2024 report from the American Osteopathy Association found that 57% of DOS practice family medicine, internal medicine and pediatrics, compared to 28% of MDS.
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According to the same report, the number of DOS in the US has increased over the past decade.
Almost 70% of DOs during active practice are under the age of 45, and 45% are female.
Several US presidents have been caring for osteopathic doctors in recent years.
O’Connor was appointed by Biden in 2021 and served as a doctor in the White House until March 2025.
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Dr. Sean Barbabera stepped into the role that month. He is an decorated navy doctor who served in Afghanistan and Iraq.
Before becoming a doctor to the president Donald TrumpBarbavera operated the Naval Health Clinic Cherry Point in Havelock, North Carolina, according to multiple sources.
Dr. Sean Conley served as Trump’s doctor during his first term from 2018 to 2021.
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House GOP members, including R-Texas MPs, who are former White House doctors themselves, continue to investigate accusations that Biden’s former top White House aides had hidden his signs Mental and physical decline Whether enforcement actions were commissioned through Autoopen during his tenure and without the full knowledge of the President.
The Biden allies have pushed back these claims.
Elizabeth Elkind of Fox News Digital contributed the report.