2026 NPPES data Specialist NPI 1073554929 MD
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STEPHEN LEFLER, MD

Specialist in RUSSELLVILLE, Arkansas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
293
Medicare Part D claims · 62 beneficiaries · Specialist avg: 1K
Industry payments
$44.31
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

STEPHEN LEFLER, MD filed 293 Medicare Part D claims in 2023 as a Specialist in RUSSELLVILLE, Arkansas.

293
Part D claims, 2023
$44.31
industry payments (Sunshine Act)

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.

STEPHEN LEFLER, MD's Medicare Part D volume vs every U.S. prescriber

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

293 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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. 2,000–2,200: 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

What does the federal data show about STEPHEN LEFLER, MD?

Quality data not reported

NPI registry status

Active

Issued 06/10/2006

NPI 1073554929

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

293 80% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Arkansas

How Specialist compares to other specialties among Arkansas providers

Arkansas providers

Specialist share within Arkansas

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Arkansas

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — ABMS / AOA estimate

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).

STEPHEN LEFLER, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 105 SKYLINE DR, RUSSELLVILLE, AR, 72801, with a listed phone of (479) 968-2345. NPI 1073554929 was issued on 06/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEFLER 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 293 prescription claims written by this provider, covering 62 Medicare beneficiaries and totaling roughly $18K in drug spend. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

105 SKYLINE DR
RUSSELLVILLE, AR 72801

Provider Details

NPI 1073554929
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 06/10/2006

Hospital and facility affiliations

Facilities where STEPHEN LEFLER, 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.

MERCY CLINIC FORT SMITH COMMUNITIES
FORT SMITH, 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 STEPHEN LEFLER, MD. Source: openpaymentsdata.cms.gov.

Total received

$44

Largest payer

Bayer Healthcare Pharmaceuticals 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.

293
Total Claims
$18K
Total Drug Cost
62
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
536
Total Day Supply
15,538
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
61.2 years
Avg HCC Risk Score
1.41
Age Distribution
<65: 33, 65-74: 16, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What STEPHEN LEFLER, 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
Estradiol
108
Medroxyprogesterone Acetate
53
Norethindrone
27
Premarin
"Estrogens
N/A

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

Specialist Overview

How STEPHEN LEFLER, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

STEPHEN LEFLER, MD's 293 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Arkansas

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN LEFLER, MD's specialty?
STEPHEN LEFLER, MD specializes in Specialist and practices in RUSSELLVILLE, Arkansas. Credentials: MD.
How much does STEPHEN LEFLER, MD prescribe under Medicare Part D?
In 2023, STEPHEN LEFLER, MD wrote 293 Medicare Part D claims totaling $18K in drug costs for 62 beneficiaries.
Where is STEPHEN LEFLER, MD located?
STEPHEN LEFLER, MD is located at 105 SKYLINE DR, RUSSELLVILLE, AR, 72801. Phone: (479) 968-2345.
What is STEPHEN LEFLER, MD's NPI number?
STEPHEN LEFLER, MD's National Provider Identifier (NPI) is 1073554929, issued on 06/10/2006.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does STEPHEN LEFLER, MD prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN LEFLER, MD's most frequently prescribed drugs include Estradiol, Medroxyprogesterone Acetate, Norethindrone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN LEFLER, MD accept Medicare?
STEPHEN LEFLER, MD appears in CMS Medicare data with 293 Part D claims and 62 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN LEFLER, MD's credentials?
STEPHEN LEFLER, MD's NPI is 1073554929 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