2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1497118814 M.D.
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ASHLEY STONER, M.D.

Allergy & Immunology (Internal Medicine) Physician in LITTLE ROCK, 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
348
Medicare Part D claims · 71 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.1997/100
▲ 0 pts above national avg 83.1 · [object Object]
Industry payments
$1.6K
75 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ASHLEY STONER, M.D. is a Allergy & Immunology (Internal Medicine) Physician ([object Object]) practicing in LITTLE ROCK, Arkansas with a Medicare Part D prescribing footprint of 348 claims across 71 beneficiaries — 42% brand-name prescribing . Their CMS MIPS Final Score of 83.1997/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.6K across 75 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ASHLEY STONER, M.D. reported a CMS MIPS final score of 83.1997 out of 100, above the 83.1 national average, and filed 348 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ASHLEY STONER, M.D. 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).

ASHLEY STONER, M.D. at a glance

Near national average

NPI registry status

Active

Issued 04/02/2016

NPI 1497118814

Primary specialty

Allergy & Immunology (Internal Medicine) Physician

Niche

520 US NPIs in this specialty

Medicare Part D claims

348 56% vs specialty avg

2023 prescription claims

Specialty avg: 798

MIPS final score

83.1997/100 0.09970000000001278% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Arkansas

How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Arkansas providers

Arkansas providers

Allergy & Immunology (Internal Medicine) Physician share within Arkansas

1. Allergy & Immunology (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology (Internal Medicine) Physician share within Arkansas

Medicare quality performance — MIPS

ASHLEY STONER, M.D.'s 2023 MIPS final score plotted against the Allergy & Immunology (Internal Medicine) Physician national average

Near national average
MIPS Final Score
83.1997/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Allergy & Immunology (Internal Medicine) Physician) — 83.1997/100 vs national avg 83.1

0%100%National avg83%83.2%
MIPS final score (Allergy & Immunology (Internal Medicine) Physician) — 83.1997/100 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).

ASHLEY STONER, M.D. is a Allergy & Immunology (Internal Medicine) Physician provider practicing in LITTLE ROCK, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1497118814. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ASHLEY STONER, M.D. appears in the CMS NPPES registry as a Allergy & Immunology (Internal Medicine) Physician provider holding M.D. credentials at 18 CORPORATE HILL DR STE 110, LITTLE ROCK, AR, 72205, with a listed phone of (501) 224-1156. NPI 1497118814 was issued on 04/02/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STONER 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 348 prescription claims written by this provider, covering 71 Medicare beneficiaries and totaling roughly $154K in drug spend, split 42% brand-name and 58% generic by claim count. 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 83.1997/100 for the 2023 performance year (Quality 68.6913, Cost 85.7438), compared with the national average of 83.1.

Allergy & Immunology (Internal Medicine) Physician is a narrow specialty nationwide, with 520 enrolled providers across 48 states and an average of 798 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

18 CORPORATE HILL DR STE 110
LITTLE ROCK, AR 72205

Provider Details

NPI 1497118814
Specialty Allergy & Immunology (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 04/02/2016

CMS Quality Score (MIPS)

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

83.1997
Final Score
Avg: 83.1
68.6913
Quality
85.7438
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where ASHLEY STONER, M.D. 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.

LITTLE ROCK ALLERGY AND ASTHMA CLINIC 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 ASHLEY STONER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

Largest payer

Regeneron Healthcare Solutions, 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.

Brand vs generic prescribing mix · Above average

ASHLEY STONER, M.D. — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 348 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

348
Total Claims
$154K
Total Drug Cost
71
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
424
Total Day Supply
11,520
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$147K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.10
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Fluticasone Propionate
41
Hydroxyzine Hcl
31
Azelastine Hcl
24
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
24
Montelukast Sodium
23
Famotidine
22
Breo Ellipta
Fluticasone/Vilanterol
20
Advair Diskus
Fluticasone Propion/Salmeterol
18
Advair Hfa
Fluticasone Propion/Salmeterol
17
Ipratropium Bromide
16

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

Allergy & Immunology (Internal Medicine) Physician Overview

How ASHLEY STONER, M.D. fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.

520
Allergy & Immunology (Internal Medicine) Physician Providers in US
48
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider

ASHLEY STONER, M.D.'s 348 claims are below the specialty average of 798.

Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Arkansas

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

Compare Allergy & Immunology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ASHLEY STONER, M.D.'s specialty?
ASHLEY STONER, M.D. specializes in Allergy & Immunology (Internal Medicine) Physician and practices in LITTLE ROCK, Arkansas. Credentials: M.D..
How much does ASHLEY STONER, M.D. prescribe under Medicare Part D?
In 2023, ASHLEY STONER, M.D. wrote 348 Medicare Part D claims totaling $154K in drug costs for 71 beneficiaries.
What is ASHLEY STONER, M.D.'s Medicare quality score?
ASHLEY STONER, M.D. has a CMS MIPS Final Score of 83.1997/100 (Quality: 68.6913, Cost: 85.7438). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ASHLEY STONER, M.D. located?
ASHLEY STONER, M.D. is located at 18 CORPORATE HILL DR STE 110, LITTLE ROCK, AR, 72205. Phone: (501) 224-1156.
What is ASHLEY STONER, M.D.'s NPI number?
ASHLEY STONER, M.D.'s National Provider Identifier (NPI) is 1497118814, issued on 04/02/2016.
Does ASHLEY STONER, M.D. prescribe more brand-name or generic drugs?
ASHLEY STONER, M.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $147K in brand drug costs.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US?
There are 520 Allergy & Immunology (Internal Medicine) Physician providers across 48 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
What drugs does ASHLEY STONER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ASHLEY STONER, M.D.'s most frequently prescribed drugs include Fluticasone Propionate, Hydroxyzine Hcl, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ASHLEY STONER, M.D. accept Medicare?
ASHLEY STONER, M.D. appears in CMS Medicare data with 348 Part D claims and 71 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ASHLEY STONER, M.D.'s credentials?
ASHLEY STONER, M.D.'s NPI is 1497118814 with credentials M.D.. 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