2026 NPPES data Obstetrics & Gynecology Physician NPI 1104839760 MD
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KENTON SIZEMORE, MD

Obstetrics & Gynecology Physician in RICHLAND, Washington. 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
130
Medicare Part D claims · 37 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.0533/100
▼ 0 pts below national avg 83.1 · [object Object]
Industry payments
$18.08
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KENTON SIZEMORE, MD reported a CMS MIPS final score of 83.0533/100 — below the 83.1 national average — and filed 130 Medicare Part D claims in 2023.

83.0533/100
MIPS score · 0 vs avg
130
Part D claims, 2023
75%
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.

KENTON SIZEMORE, MD's MIPS score vs every scored U.S. clinician

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

83 42nd percentile higher than 42% 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)

KENTON SIZEMORE, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 KENTON SIZEMORE, MD?

Near national average

NPI registry status

Active

Issued 08/14/2006

NPI 1104839760

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

130 27% vs specialty avg

2023 prescription claims

Specialty avg: 179

MIPS final score

83.0533/100 0.046700000000001296% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Washington

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

Washington providers

Obstetrics & Gynecology Physician share within Washington

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

Medicare quality performance — MIPS

KENTON SIZEMORE, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average

Near national average
MIPS Final Score
83.0533/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics & Gynecology Physician) — 83.0533/100 vs national avg 83.1

0%100%National avg83%83.1%
MIPS final score (Obstetrics & Gynecology Physician) — 83.0533/100 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).

KENTON SIZEMORE, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 945 GOETHALS DRIVE, RICHLAND, WA, 99352, with a listed phone of (509) 942-3627. NPI 1104839760 was issued on 08/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SIZEMORE 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 130 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $14K in drug spend, split 25% brand-name and 75% 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 83.0533/100 for the 2023 performance year (Quality 76.4787, Cost 67.0324), compared with the national average of 83.1.

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

945 GOETHALS DRIVE
RICHLAND, WA 99352

Provider Details

NPI 1104839760
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Male
NPI Issued 08/14/2006

CMS Quality Score (MIPS)

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

83.0533
Final Score
Avg: 83.1
76.4787
Quality
67.0324
Cost
100
Promoting Interoperability

Reporting: Group practice

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 KENTON SIZEMORE, MD. Source: openpaymentsdata.cms.gov.

Total received

$18

Largest payer

Hologic Sales and Service, LLC

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.

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to KENTON SIZEMORE, MD. To verify KENTON SIZEMORE, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

KENTON SIZEMORE, MD — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 130 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.

130
Total Claims
$14K
Total Drug Cost
37
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
227
Total Day Supply
6,479
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$11K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
67.2 years
Avg HCC Risk Score
0.88
Gender Split
100% female / 0% male
Age Distribution
<65: 12, 65-74: 17, 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 KENTON SIZEMORE, 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
22
Oxybutynin Chloride Er
Oxybutynin Chloride
15
Myrbetriq
Mirabegron
13
Premarin
"Estrogens
N/A

* 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 KENTON SIZEMORE, 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

KENTON SIZEMORE, MD's 130 claims are below the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Washington

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

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

Frequently Asked Questions

What is KENTON SIZEMORE, MD's specialty?
KENTON SIZEMORE, MD specializes in Obstetrics & Gynecology Physician and practices in RICHLAND, Washington. Credentials: MD.
How much does KENTON SIZEMORE, MD prescribe under Medicare Part D?
In 2023, KENTON SIZEMORE, MD wrote 130 Medicare Part D claims totaling $14K in drug costs for 37 beneficiaries.
What is KENTON SIZEMORE, MD's Medicare quality score?
KENTON SIZEMORE, MD has a CMS MIPS Final Score of 83.0533/100 (Quality: 76.4787, Cost: 67.0324). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KENTON SIZEMORE, MD located?
KENTON SIZEMORE, MD is located at 945 GOETHALS DRIVE, RICHLAND, WA, 99352. Phone: (509) 942-3627.
What is KENTON SIZEMORE, MD's NPI number?
KENTON SIZEMORE, MD's National Provider Identifier (NPI) is 1104839760, issued on 08/14/2006.
Does KENTON SIZEMORE, MD prescribe more brand-name or generic drugs?
KENTON SIZEMORE, MD's prescribing is 25% brand-name and 75% generic drugs by claim count, with $11K 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 KENTON SIZEMORE, MD prescribe most often?
Based on 2023 Medicare Part D data, KENTON SIZEMORE, MD's most frequently prescribed drugs include Estradiol, Oxybutynin Chloride Er, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KENTON SIZEMORE, MD accept Medicare?
KENTON SIZEMORE, MD appears in CMS Medicare data with 130 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KENTON SIZEMORE, MD's credentials?
KENTON SIZEMORE, MD's NPI is 1104839760 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.
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