2026 NPPES data Surgery Physician NPI 1104485648 MD
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Gregory Rives, MD

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 36,191 in 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
26
Medicare Part D claims · 21 beneficiaries · Surgery Physician avg: 169
Industry payments
$2.2K
10 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Gregory Rives, MD filed 26 Medicare Part D claims in 2023 as a Surgery Physician in Little Rock, Arkansas.

26
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.

Gregory Rives, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

26 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Gregory Rives, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Gregory Rives, MD?

Quality data not reported

NPI registry status

Active

Issued 06/09/2019

NPI 1104485648

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

26 85% vs specialty avg

2023 prescription claims

Specialty avg: 169

Specialty distribution in Arkansas

How 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%Surgery Physician - 0.4%Surgery Physician0.4%
Largest specialties in Arkansas (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Surgery Physician. Verify directly:

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).

Gregory Rives, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 4301 W MARKHAM ST # 520, Little Rock, AR, 72205, with a listed phone of (501) 686-8000. NPI 1104485648 was issued on 06/09/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Rives 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 26 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $281 in drug spend, with an opioid prescribing rate of 53.8%. 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.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

4301 W MARKHAM ST # 520
Little Rock, AR 72205

Provider Details

NPI 1104485648
Specialty Surgery Physician
Credentials MD
Gender Male
NPI Issued 06/09/2019

Hospital and facility affiliations

Facilities where Gregory Rives, 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.

Administrators OF The Tulane Educational Fund
New Orleans, LA
University OF Arkansas For Medical Sciences
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 Gregory Rives, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.2K

Largest payer

Enterra Medical, Inc.

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.

26
Total Claims
$281
Total Drug Cost
21
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
36
Total Day Supply
636
Brand Drug Cost
$0
Generic Drug Cost
$281
Opioid Claims
14 (53.8% rate)

Patient Demographics

Average Patient Age
68.4 years
Avg HCC Risk Score
1.62

Surgery Physician Overview

How Gregory Rives, MD fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

Gregory Rives, MD's 26 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in Arkansas

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

Compare 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 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 Gregory Rives, MD's specialty?
Gregory Rives, MD specializes in Surgery Physician and practices in Little Rock, Arkansas. Credentials: MD.
How much does Gregory Rives, MD prescribe under Medicare Part D?
In 2023, Gregory Rives, MD wrote 26 Medicare Part D claims totaling $281 in drug costs for 21 beneficiaries.
Where is Gregory Rives, MD located?
Gregory Rives, MD is located at 4301 W MARKHAM ST # 520, Little Rock, AR, 72205. Phone: (501) 686-8000.
What is Gregory Rives, MD's NPI number?
Gregory Rives, MD's National Provider Identifier (NPI) is 1104485648, issued on 06/09/2019.
Does Gregory Rives, MD prescribe opioids?
Yes, Gregory Rives, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 53.8%.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
Does Gregory Rives, MD accept Medicare?
Gregory Rives, MD appears in CMS Medicare data with 26 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregory Rives, MD's credentials?
Gregory Rives, MD's NPI is 1104485648 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.
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.