2026 NPPES data Allergy & Immunology Physician NPI 1164714762 M.D.
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MEREDITH DILLEY, M.D.

Allergy & Immunology 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
1K
Medicare Part D claims · 163 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.0272/100
▲ 1 pts above national avg 83.1 · [object Object]
Industry payments
$329.15
13 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MEREDITH DILLEY, M.D. reported a CMS MIPS final score of 84.0272/100 — above the 83.1 national average — and filed 1,073 Medicare Part D claims in 2023.

84.0272/100
MIPS score · +1 vs avg
1K
Part D claims, 2023
82%
generic prescribing
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.

MEREDITH DILLEY, M.D.'s MIPS score vs every scored U.S. clinician

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

84 45th percentile higher than 45% 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. 90–100: 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

Board certification likely (heuristic — not verified)

MEREDITH DILLEY, 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).

What does the federal data show about MEREDITH DILLEY, M.D.?

Near national average

NPI registry status

Active

Issued 05/14/2011

NPI 1164714762

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

1,073 40% vs specialty avg

2023 prescription claims

Specialty avg: 764

MIPS final score

84.0272/100 0.9271999999999991% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Arkansas

How Allergy & Immunology Physician compares to other specialties among Arkansas providers

Arkansas providers

Allergy & Immunology Physician share within Arkansas

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

Medicare quality performance — MIPS

MEREDITH DILLEY, M.D.'s 2023 MIPS final score plotted against the Allergy & Immunology Physician national average

Near national average
MIPS Final Score
84.0272/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Allergy & Immunology Physician) — 84.0272/100 vs national avg 83.1

0%100%National avg83%84%
MIPS final score (Allergy & Immunology Physician) — 84.0272/100 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).

MEREDITH DILLEY, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 10201 KANIS RD, LITTLE ROCK, AR, 72205, with a listed phone of (501) 227-5050. NPI 1164714762 was issued on 05/14/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DILLEY 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 1,073 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $231K in drug spend, split 18% brand-name and 82% 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 84.0272/100 for the 2023 performance year (Quality 80.6113, Cost 66.146), compared with the national average of 83.1.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

10201 KANIS RD
LITTLE ROCK, AR 72205

Provider Details

NPI 1164714762
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Female
NPI Issued 05/14/2011

CMS Quality Score (MIPS)

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

84.0272
Final Score
Avg: 83.1
80.6113
Quality
66.146
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MEREDITH DILLEY, 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.

ARKANSAS OTOLARYNGOLOGY 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 MEREDITH DILLEY, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$329

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 · Typical

MEREDITH DILLEY, M.D. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 1,073 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.

1,073
Total Claims
$231K
Total Drug Cost
163
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,502
Total Day Supply
41,643
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$208K
Generic Drug Cost
$23K
Antibiotic Claims
30

Patient Demographics

Average Patient Age
68.2 years
Avg HCC Risk Score
1.08
Gender Split
63% female / 37% male
Age Distribution
<65: 37, 65-74: 93, 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 MEREDITH DILLEY, M.D. 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
Montelukast Sodium
254
Levocetirizine Dihydrochloride
161
Azelastine Hcl
137
Fluticasone Propionate
96
Ipratropium Bromide
79
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
28
Epinephrine
24
Prednisone
21
Advair Hfa
Fluticasone Propion/Salmeterol
20
Albuterol Sulfate Hfa
Albuterol Sulfate
20

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

Allergy & Immunology Physician Overview

How MEREDITH DILLEY, M.D. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

MEREDITH DILLEY, M.D.'s 1,073 claims are above the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Arkansas

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MEREDITH DILLEY, M.D.'s specialty?
MEREDITH DILLEY, M.D. specializes in Allergy & Immunology Physician and practices in LITTLE ROCK, Arkansas. Credentials: M.D..
How much does MEREDITH DILLEY, M.D. prescribe under Medicare Part D?
In 2023, MEREDITH DILLEY, M.D. wrote 1,073 Medicare Part D claims totaling $231K in drug costs for 163 beneficiaries.
What is MEREDITH DILLEY, M.D.'s Medicare quality score?
MEREDITH DILLEY, M.D. has a CMS MIPS Final Score of 84.0272/100 (Quality: 80.6113, Cost: 66.146). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MEREDITH DILLEY, M.D. located?
MEREDITH DILLEY, M.D. is located at 10201 KANIS RD, LITTLE ROCK, AR, 72205. Phone: (501) 227-5050.
What is MEREDITH DILLEY, M.D.'s NPI number?
MEREDITH DILLEY, M.D.'s National Provider Identifier (NPI) is 1164714762, issued on 05/14/2011.
Does MEREDITH DILLEY, M.D. prescribe more brand-name or generic drugs?
MEREDITH DILLEY, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $208K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does MEREDITH DILLEY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MEREDITH DILLEY, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Levocetirizine Dihydrochloride, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MEREDITH DILLEY, M.D. accept Medicare?
MEREDITH DILLEY, M.D. appears in CMS Medicare data with 1,073 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MEREDITH DILLEY, M.D.'s credentials?
MEREDITH DILLEY, M.D.'s NPI is 1164714762 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