2026 NPPES data Orthopaedic Surgery Physician NPI 1700080389 MD
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Clayton Riley, MD

Orthopaedic Surgery Physician in Little Rock, Arkansas. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 25,781 in Orthopaedic Surgery Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
405
Medicare Part D claims · 162 beneficiaries · Orthopaedic Surgery Physician avg: 324
MIPS score
81.8/100
▼ 1 pts below national avg 83.1 · Above neutral
Industry payments
$162.63
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Clayton Riley, MD reported a CMS MIPS final score of 81.8/100 - below the 83.1 national average - and filed 405 Medicare Part D claims in 2023.

81.8/100
MIPS score · -1 vs avg
405
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Clayton Riley, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

82 36th percentile higher than 36% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Clayton Riley, MD sits

This provider among orthopaedic surgery physician peers

Across the 8,194 orthopaedic surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Clayton Riley, MD writes more Part D claims than 65% of them and scores higher on MIPS quality than 52% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 37Clayton Riley, MD-Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 52
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one orthopaedic surgery physician peer from a representative sample of 60; the gold marker is Clayton Riley, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Clayton Riley, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Clayton Riley, MD?

Near national average

NPI registry status

Active

Issued 06/14/2007

NPI 1700080389

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

405 25% vs specialty avg

2023 prescription claims

Specialty avg: 324

MIPS final score

81.8/100 1.3 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Arkansas

How Orthopaedic Surgery Physician compares to other specialties among Arkansas providers

Arkansas providers
Case Manager/Care Coordinator - 17.2%Case Manager/Care Coordinator17.2%Behavior Technician - 5.5%Behavior Technician5.5%Speech-Language Pathologist - 5.4%Speech-Language Pathologist5.4%Pharmacist - 4.3%Pharmacist4.3%Mental Health Counselor - 4.2%Mental Health Counselor4.2%Student in an Organized Health Care Education/Training Program - 4%Student in an Organized Health Care Education/Training Program4%Orthopaedic Surgery Physician - 0.3%Orthopaedic Surgery Physician0.3%
Largest specialties in Arkansas (% of in-state providers)

Medicare quality performance, MIPS

Clayton Riley, MD's 2023 MIPS final score plotted against the Orthopaedic Surgery Physician national average

Near national average
MIPS Final Score
81.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Orthopaedic Surgery Physician) - 81.8/100 vs national avg 83.1

0%100%National avg83%81.8%
MIPS final score (Orthopaedic Surgery Physician) - 81.8/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Clayton Riley, MD appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding MD credentials at 5320 W. MARKHAM, Little Rock, AR, 72205, with a listed phone of (501) 975-5633. NPI 1700080389 was issued on 06/14/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Riley most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 405 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 52.6%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.8/100 for the 2023 performance year (Quality 79.3, Cost 66.9), compared with the national average of 83.1.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

5320 W. MARKHAM
Little Rock, AR 72205

Provider Details

NPI 1700080389
Specialty Orthopaedic Surgery Physician
Credentials MD
Gender Male
NPI Issued 06/14/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

81.7997
Final Score
Avg: 83.1
79.311
Quality
66.9175
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where Clayton Riley, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Martin Knee And Sports Medicine Center, PA
Little Rock, AR

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Clayton Riley, MD. Source: openpaymentsdata.cms.gov.

Total received

$163

Largest payer

Stryker Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

405
Total Claims
$4K
Total Drug Cost
162
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
419
Total Day Supply
6,023
Generic Drug Cost
$4K
Opioid Claims
213 (52.6% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
0.90
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Clayton Riley, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
156
Diclofenac Sodium
53
Meloxicam
41
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
37
Ondansetron Odt
Ondansetron
18
Tramadol Hcl
18
Methocarbamol
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Orthopaedic Surgery Physician Overview

How Clayton Riley, MD fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

Clayton Riley, MD's 405 claims are above the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in Arkansas

Other clinicians with the same primary specialty enrolled in Arkansas, drawn from the same CMS NPPES roster as Riley.

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Arkansas medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Orthopaedic Surgery Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Clayton Riley, MD's specialty?
Clayton Riley, MD specializes in Orthopaedic Surgery Physician and practices in Little Rock, Arkansas. Credentials: MD.
How much does Clayton Riley, MD prescribe under Medicare Part D?
In 2023, Clayton Riley, MD wrote 405 Medicare Part D claims totaling $4K in drug costs for 162 beneficiaries.
What is Clayton Riley, MD's Medicare quality score?
Clayton Riley, MD has a CMS MIPS Final Score of 81.8/100 (Quality: 79.3, Cost: 66.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Clayton Riley, MD located?
Clayton Riley, MD is located at 5320 W. MARKHAM, Little Rock, AR, 72205. Phone: (501) 975-5633.
What is Clayton Riley, MD's NPI number?
Clayton Riley, MD's National Provider Identifier (NPI) is 1700080389, issued on 06/14/2007.
Does Clayton Riley, MD prescribe opioids?
Yes, Clayton Riley, MD had 213 opioid claims in 2023 with an opioid prescribing rate of 52.6%.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does Clayton Riley, MD prescribe most often?
Based on 2023 Medicare Part D data, Clayton Riley, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Diclofenac Sodium, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Clayton Riley, MD accept Medicare?
Clayton Riley, MD appears in CMS Medicare data with 405 Part D claims and 162 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clayton Riley, MD's credentials?
Clayton Riley, MD's NPI is 1700080389 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.