Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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William Charles O'Neill IV, MD

Individual provider Nephrology Physician · NPI 1215049648

William Charles O'Neill IV, MD is a Nephrology in Atlanta, Georgia. Graduated from Tufts University School of Medicine in 1979, 47 years ago. Practices with The Emory Clinic Inc, a 3,500-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
47
Trained at
Tufts University School of Medicine
Licensed in
GA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1365 Clifton Rd NE Bldg B The Emory Clinic - Nephrology
Atlanta, GA 30322-1013
Phone: (404) 778-4366
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Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 28056 (GA)

Record details

NPI number1215049648
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESMarch 29, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Also practisesENDOCRINOLOGY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice The Emory Clinic Inc — 3500 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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