Mark Henry Knelson, M.D.
Diagnostic Radiology Physician · Raleigh, NC
Mark Henry Knelson, M.D. is a diagnostic radiology physician with a practice address in Raleigh, North Carolina, and NPI 1750307559, issued on Jul 14, 2006. Check the license (North Carolina 38997, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Henry Knelson
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 38997 NC
Self-reported in NPPES; status is on the state search - Practice location
- 4420 Lake Boone Trl, Raleigh, NC 27607
- Phone
- (919) 784-3023
- Enumerated
- Jul 14, 2006
- Record last updated
- Nov 6, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (919) 784-3497
- Medicaid ID
- 8949741 NC
- Medicare enrollment
- Enrolled (PECOS I20050624000970); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,389 in North Carolina → Look up another NPI →
Also registered at 4420 Lake Boone Trl
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deema Al-Ghandour, PAPhysician Assistant1053846667
- Asra Ali, M.D.Anesthesiology Physician1114138195
Verify Mark Henry Knelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 38997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,012.78
11 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Durham Radiology Associates IncDurham, NC
- Eastern Radiologists IncGreenville, NC
- Scotland Memorial Hospital, IncLaurinburg, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Henry Knelson among 1,389 diagnostic radiology physician records in North Carolina
Mark Henry Knelson, M.D. is one of 1,389 diagnostic radiology physician records with a practice address in North Carolina. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 52% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1985 · median 2006 among the 998 with a school on file
- Record last updated2007 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in North Carolina
There are 1,389 diagnostic radiology physician records in North Carolina.
All 1,389 in North Carolina → Every provider in Raleigh → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Whitney Davis, M.D.Raleigh, NC 276071285650077
- Gintaras Degesys, M.D.Raleigh, NC 276071619900917
- Svati Long, MDRaleigh, NC 276071992987010
- Tracey O'Connell, M.D.Raleigh, NC 276071326064122
- Cynthia Payne, M.D.Raleigh, NC 276071225054034
- Neil Ramquist, M.D.Raleigh, NC 276071154354470
- Jennifer Vanvickle, M.D.Raleigh, NC 276071356374680
- Andrew Weber, M.D.Raleigh, NC 276071396761110
Common questions
What is Mark Henry Knelson, M.D.'s NPI number?
Mark Henry Knelson, M.D.'s National Provider Identifier (NPI) is 1750307559, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Henry Knelson, M.D. located?
The NPPES record lists a practice address at 4420 Lake Boone Trl, Raleigh, NC, 27607. Phone: (919) 784-3023. Providers update this record themselves, so call before visiting.
How can I verify Mark Henry Knelson, M.D.'s license?
NPPES lists North Carolina license number 38997, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Mark Henry Knelson, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.