Clayton Hartwick Riley, MD
Orthopaedic Surgery Physician · Little Rock, AR
Clayton Hartwick Riley, MD is an orthopaedic surgery physician with a practice address in Little Rock, Arkansas, and NPI 1700080389, issued on Jun 14, 2007. Check the license (Arkansas E6967, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Clayton Hartwick Riley
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- E6967 AR
P0122 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5320 W. Markham, Little Rock, AR 72205
- Phone
- (501) 975-5633
- Enumerated
- Jun 14, 2007
- Record last updated
- Dec 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (501) 227-0710
- Medicaid ID
- 193251001 AR
- Medicare enrollment
- Enrolled (PECOS I20120724000032); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2006
- Entity
- Type 1 · individual
Also registered at 5320 W. Markham
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Davis, PA-CPhysician Assistant1083959266
- Kenneth Martin, MDOrthopaedic Surgery Physician1699730689
Verify Clayton Hartwick Riley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E6967Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
425 Medicare Part D claims for 190 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 183 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen129 claims
- Diclofenac Sodium74 claims
- Meloxicam62 claims
- Oxycodone-Acetaminophen32 claims
- Ondansetron Odt30 claims
- Tramadol Hcl17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.8 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: $162.63
2 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 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 one group practice
- Martin Knee And Sports Medicine Center, PALittle Rock, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Orthopaedic Surgery Physician providers in Arkansas
There are 205 orthopaedic surgery physician records in Arkansas.
Other orthopaedic surgery physician records in Arkansas
- John Akins, MDMountian View, AR1245487198
- Joe Alberty, MDFort Smith, AR1316930530
- Mark Allard, M.D.Springdale, AR1235102724
- James Allen, M.D.Batesville, AR1033175138
- Jeffery Angel, M.D.Batesville, AR1689630352
- Christopher Arnold, M.D.Fayetteville, AR1871547745
- James Aronson, MDLittle Rock, AR1811087307
- Donald Bailey, M.D.Springdale, AR1588954416
- Mark Bailey, MDBenton, AR1336368661
- John Ball, M.D.Jonesboro, AR1225036924
Common questions
What is Clayton Hartwick Riley, MD's NPI number?
Clayton Hartwick Riley, MD's National Provider Identifier (NPI) is 1700080389, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Clayton Hartwick Riley, MD located?
The NPPES record lists a practice address at 5320 W. Markham, Little Rock, AR, 72205. Phone: (501) 975-5633. Providers update this record themselves, so call before visiting.
How can I verify Clayton Hartwick Riley, MD's license?
NPPES lists Arkansas license number E6967, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clayton Hartwick Riley, MD prescribe under Medicare Part D?
In 2024, Clayton Hartwick Riley, MD had 425 Medicare Part D claims for 190 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Clayton Hartwick Riley, MD's MIPS final score?
The 2023 MIPS final score is 81.8 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.