NPPES file of Aug 9, 2026

Christopher C. Knox

Diagnostic Radiology Physician · Greenwood, SC

Christopher C. Knox is a diagnostic radiology physician with a practice address in Greenwood, South Carolina, and NPI 1699864702, issued on Oct 12, 2006. Check the license (South Carolina 23195, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699864702
Name
Christopher C. Knox
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
23195 SC
Self-reported in NPPES; status is on the state search
Practice location
1325 Spring St, Greenwood, SC 29646
Phone
(864) 725-4111
Enumerated
Oct 12, 2006
Record last updated
Dec 10, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(864) 725-7498
Medicare enrollment
Enrolled (PECOS I20111201000761); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1325 Spring St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tinu Abraham, MDInternal Medicine Physician1194354399
  2. Chandler Adams, PA-CPhysician Assistant1205465820
  3. Matthew Adams, MDFamily Medicine Physician1467136135
  4. Kelly Addy, NPFamily Nurse Practitioner1790215291
  5. Sunil Agarwal, MDPain Medicine (Anesthesiology) Physician1780113506
  6. Solomon Amemasor, DODiagnostic Radiology Physician1285128892

Verify Christopher C. Knox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 23195
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

The MIPS final score for 2023 (Medicare payment program): 96.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score92.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $24.32

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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.

  1. Christopher Knox$24.32
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Self Medical GroupGreenwood, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher C. Knox among 517 diagnostic radiology physician records in South Carolina

Christopher C. Knox is one of 517 diagnostic radiology physician records with a practice address in South Carolina. 71% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 49% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1997 · median 2005 among the 338 with a school on file
  • Record last updated2021 · 57% 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 South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 diagnostic radiology physician records list a practice address in Greenwood

They are 12 of the 1,262 NPPES records with a practice address in Greenwood, and 517 diagnostic radiology physician records in South Carolina.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Solomon Amemasor, DOGreenwood, SC 296461285128892
  2. Venkata Amilineni, MDGreenwood, SC 296461043291933
  3. David ArringtonGreenwood, SC 296461609042126
  4. Samuel Cosmello, D.O. RPHGreenwood, SC 296461497964910
  5. John Gowdy, D.O.Greenwood, SC 296461578874277
  6. Catherine Kasper, DOGreenwood, SC 296461437595931
  7. Tammy KitchensGreenwood, SC 296461689763708
  8. William Kitchens, M.D.Greenwood, SC 296461659497238

Common questions

What is Christopher C. Knox's NPI number?

Christopher C. Knox's National Provider Identifier (NPI) is 1699864702, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher C. Knox located?

The NPPES record lists a practice address at 1325 Spring St, Greenwood, SC, 29646. Phone: (864) 725-4111. Providers update this record themselves, so call before visiting.

How can I verify Christopher C. Knox's license?

NPPES lists South Carolina license number 23195, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Christopher C. Knox's MIPS final score?

The 2023 MIPS final score is 96.1 of 100. 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.