Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark Henry Knelson, MD

Individual provider Diagnostic Radiology Physician · NPI 1750307559

Mark Henry Knelson, MD is a Diagnostic Radiology in Raleigh, North Carolina. Graduated from University of North Carolina at Chapel Hill School of Medicine in 1985, 41 years ago. Practices with Eastern Radiologists Inc, a 96-clinician group and accepts Medicare assignment. Licensed in North Carolina.

Years since qualifying
41
Trained at
University of North Carolina at Chapel Hill School of Medicine
Licensed in
NC
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

4420 Lake Boone Trl
Raleigh, NC 27607-7505
Phone: (919) 784-3023
Fax: (919) 784-3497
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 38997 (NC)

Record details

NPI number1750307559
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2006
Last updated in NPPESNovember 6, 2007

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL SCHOOL OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice Eastern Radiologists Inc — 96 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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