John Barkley, MD
Addiction Medicine · Internal Medicine · Pulmonology
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Credentials & Recognition
Specialties
NPI sub-specialties
Internal Medicine, Critical Care Medicine207RC0200X
Internal Medicine207R00000X
Internal Medicine, Pulmonary Disease207RP1001X
Internal Medicine, Hospice and Palliative Medicine207RH0002X
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
19+ years
Estimated from NPI enumeration date
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