2026 NPPES data Obstetrics & Gynecology Physician NPI 1255332276 MD
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KENT MASON, MD

Obstetrics & Gynecology Physician in SPRINGDALE, 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
123
Medicare Part D claims · 30 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$56.68
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KENT MASON, MD filed 123 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in SPRINGDALE, Arkansas, prescribing 88% generic.

123
Part D claims, 2023
88%
generic prescribing
$56.68
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.

KENT MASON, MD's Medicare Part D volume vs every U.S. prescriber

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

123 35th percentile higher than 35% 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. 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

Board-eligible specialty (heuristic — not verified)

KENT MASON, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about KENT MASON, MD?

Quality data not reported

NPI registry status

Active

Issued 08/02/2005

NPI 1255332276

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

123 31% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Arkansas

How Obstetrics & Gynecology Physician compares to other specialties among Arkansas providers

Arkansas providers

Obstetrics & Gynecology Physician share within Arkansas

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

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology Physician) — 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).

KENT MASON, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 5330 WILLOW CREEK DR, SPRINGDALE, AR, 72762, with a listed phone of (479) 582-9268. NPI 1255332276 was issued on 08/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MASON 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 123 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $3K in drug spend, split 12% brand-name and 88% 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

5330 WILLOW CREEK DR
SPRINGDALE, AR 72762

Provider Details

NPI 1255332276
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Male
NPI Issued 08/02/2005

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 KENT MASON, MD. Source: openpaymentsdata.cms.gov.

Total received

$57

Largest payer

Sumitomo Pharma America, 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

KENT MASON, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 123 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.

123
Total Claims
$3K
Total Drug Cost
30
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
261
Total Day Supply
7,747
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$1K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
66.6 years
Avg HCC Risk Score
0.84
Gender Split
100% female / 0% 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
Estradiol
90
Medroxyprogesterone Acetate
23

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

Obstetrics & Gynecology Physician Overview

How KENT MASON, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

KENT MASON, MD's 123 claims are below the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Arkansas

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

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KENT MASON, MD's specialty?
KENT MASON, MD specializes in Obstetrics & Gynecology Physician and practices in SPRINGDALE, Arkansas. Credentials: MD.
How much does KENT MASON, MD prescribe under Medicare Part D?
In 2023, KENT MASON, MD wrote 123 Medicare Part D claims totaling $3K in drug costs for 30 beneficiaries.
Where is KENT MASON, MD located?
KENT MASON, MD is located at 5330 WILLOW CREEK DR, SPRINGDALE, AR, 72762. Phone: (479) 582-9268.
What is KENT MASON, MD's NPI number?
KENT MASON, MD's National Provider Identifier (NPI) is 1255332276, issued on 08/02/2005.
Does KENT MASON, MD prescribe more brand-name or generic drugs?
KENT MASON, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $1K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does KENT MASON, MD prescribe most often?
Based on 2023 Medicare Part D data, KENT MASON, MD's most frequently prescribed drugs include Estradiol, Medroxyprogesterone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KENT MASON, MD accept Medicare?
KENT MASON, MD appears in CMS Medicare data with 123 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KENT MASON, MD's credentials?
KENT MASON, MD's NPI is 1255332276 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