2026 NPPES data Family Nurse Practitioner NPI 1659809473
Verify on CMS →

Karla Sizemore

Family Nurse Practitioner in Manchester, Kentucky. 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
2K
Medicare Part D claims · 348 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$719.11
44 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Karla Sizemore filed 2,346 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Manchester, Kentucky, prescribing 91% generic.

2K
Part D claims, 2023
91%
generic prescribing
$719.11
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.

Karla Sizemore's Medicare Part D volume vs every U.S. prescriber

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

2,346 Top 14% higher than 86% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 Karla Sizemore?

Quality data not reported

NPI registry status

Active

Issued 05/24/2017

NPI 1659809473

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

2,346 92% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Kentucky

How Family Nurse Practitioner compares to other specialties among Kentucky providers

Kentucky providers

Family Nurse Practitioner share within Kentucky

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Kentucky

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — 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).

Karla Sizemore appears in the CMS NPPES registry as a Family Nurse Practitioner provider at 56 MARIE LANGDON DR, Manchester, KY, 40962, with a listed phone of (606) 599-4080. NPI 1659809473 was issued on 05/24/2017. 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 2,346 prescription claims written by this provider, covering 348 Medicare beneficiaries and totaling roughly $170K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 2.8%. 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

56 MARIE LANGDON DR
Manchester, KY 40962

Provider Details

NPI 1659809473
Specialty Family Nurse Practitioner
Gender Female
NPI Issued 05/24/2017

Hospital and facility affiliations

Facilities where Karla Sizemore 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.

Memorial Hospital, Inc.
London, KY

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 Karla Sizemore. Source: openpaymentsdata.cms.gov.

Total received

$719

Largest payer

Lilly USA, 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.

Brand vs generic prescribing mix · Generic-heavy

Karla Sizemore — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 2,346 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.

2,346
Total Claims
$170K
Total Drug Cost
348
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,913
Total Day Supply
105,614
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$132K
Generic Drug Cost
$36K
Opioid Claims
66 (2.8% rate)
Antibiotic Claims
228

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
1.26
Gender Split
56% female / 44% male
Age Distribution
<65: 95, 65-74: 145, 75-84: 78, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

What Karla Sizemore 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
Methylprednisolone
106
Amlodipine Besylate
90
Lisinopril
78
Losartan Potassium
56
Gabapentin
54
Metoprolol Tartrate
54
Montelukast Sodium
50
Omeprazole
50
Fluconazole
49
Atorvastatin Calcium
46

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

Family Nurse Practitioner Overview

How Karla Sizemore fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Karla Sizemore's 2,346 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Kentucky

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

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Kentucky medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Karla Sizemore's specialty?
Karla Sizemore specializes in Family Nurse Practitioner and practices in Manchester, Kentucky.
How much does Karla Sizemore prescribe under Medicare Part D?
In 2023, Karla Sizemore wrote 2,346 Medicare Part D claims totaling $170K in drug costs for 348 beneficiaries.
Where is Karla Sizemore located?
Karla Sizemore is located at 56 MARIE LANGDON DR, Manchester, KY, 40962. Phone: (606) 599-4080.
What is Karla Sizemore's NPI number?
Karla Sizemore's National Provider Identifier (NPI) is 1659809473, issued on 05/24/2017.
Does Karla Sizemore prescribe more brand-name or generic drugs?
Karla Sizemore's prescribing is 9% brand-name and 91% generic drugs by claim count, with $132K in brand drug costs.
Does Karla Sizemore prescribe opioids?
Yes, Karla Sizemore had 66 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Karla Sizemore prescribe most often?
Based on 2023 Medicare Part D data, Karla Sizemore's most frequently prescribed drugs include Methylprednisolone, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karla Sizemore accept Medicare?
Karla Sizemore appears in CMS Medicare data with 2,346 Part D claims and 348 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karla Sizemore's credentials?
Karla Sizemore's NPI is 1659809473. 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