2026 NPPES data Medical Physician Assistant NPI 1689856510 PAC
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KAREN LEUENBERGER, PAC

Medical Physician Assistant in KANSAS CITY, Missouri. 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 · 175 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$414.33
10 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KAREN LEUENBERGER, PAC filed 2,361 Medicare Part D claims in 2023 as a Medical Physician Assistant in KANSAS CITY, Missouri, prescribing 83% generic.

2K
Part D claims, 2023
83%
generic prescribing
$414.33
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.

KAREN LEUENBERGER, PAC's Medicare Part D volume vs every U.S. prescriber

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

2,361 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 KAREN LEUENBERGER, PAC?

Quality data not reported

NPI registry status

Active

Issued 12/03/2007

NPI 1689856510

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

2,361 119% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Missouri

How Medical Physician Assistant compares to other specialties among Missouri providers

Missouri providers

Medical Physician Assistant share within Missouri

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

KAREN LEUENBERGER, PAC is a Medical Physician Assistant provider practicing in KANSAS CITY, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PAC. NPI: 1689856510. 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.

KAREN LEUENBERGER, PAC appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PAC credentials at 4601 INDEPENDENCE AVE, KANSAS CITY, MO, 64124, with a listed phone of (816) 241-6334. NPI 1689856510 was issued on 12/03/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEUENBERGER 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 2,361 prescription claims written by this provider, covering 175 Medicare beneficiaries and totaling roughly $364K in drug spend, split 17% brand-name and 83% 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

4601 INDEPENDENCE AVE
KANSAS CITY, MO 64124

Provider Details

NPI 1689856510
Specialty Medical Physician Assistant
Credentials PAC
Gender Female
NPI Issued 12/03/2007

Hospital and facility affiliations

Facilities where KAREN LEUENBERGER, PAC 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.

KANSAS CITY CARE CLINIC
KANSAS CITY, MO

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 KAREN LEUENBERGER, PAC. Source: openpaymentsdata.cms.gov.

Total received

$414

Largest payer

ViiV Healthcare Company

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

KAREN LEUENBERGER, PAC — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 2,361 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.

2,361
Total Claims
$364K
Total Drug Cost
175
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,139
Total Day Supply
151,430
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$320K
Generic Drug Cost
$41K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
68.4 years
Avg HCC Risk Score
1.12
Gender Split
59% female / 41% male
Age Distribution
<65: 47, 65-74: 82, 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.

Drug Claims
Atorvastatin Calcium
213
Amlodipine Besylate
187
Lisinopril
161
Levothyroxine Sodium
100
Metformin Hcl Er
Metformin Hcl
88
Omeprazole
62
Metformin Hcl
58
Rosuvastatin Calcium
56
Carvedilol
53
Gabapentin
45

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

Medical Physician Assistant Overview

How KAREN LEUENBERGER, PAC fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

KAREN LEUENBERGER, PAC's 2,361 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Missouri

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is KAREN LEUENBERGER, PAC's specialty?
KAREN LEUENBERGER, PAC specializes in Medical Physician Assistant and practices in KANSAS CITY, Missouri. Credentials: PAC.
How much does KAREN LEUENBERGER, PAC prescribe under Medicare Part D?
In 2023, KAREN LEUENBERGER, PAC wrote 2,361 Medicare Part D claims totaling $364K in drug costs for 175 beneficiaries.
Where is KAREN LEUENBERGER, PAC located?
KAREN LEUENBERGER, PAC is located at 4601 INDEPENDENCE AVE, KANSAS CITY, MO, 64124. Phone: (816) 241-6334.
What is KAREN LEUENBERGER, PAC's NPI number?
KAREN LEUENBERGER, PAC's National Provider Identifier (NPI) is 1689856510, issued on 12/03/2007.
Does KAREN LEUENBERGER, PAC prescribe more brand-name or generic drugs?
KAREN LEUENBERGER, PAC's prescribing is 17% brand-name and 83% generic drugs by claim count, with $320K in brand drug costs.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does KAREN LEUENBERGER, PAC prescribe most often?
Based on 2023 Medicare Part D data, KAREN LEUENBERGER, PAC's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAREN LEUENBERGER, PAC accept Medicare?
KAREN LEUENBERGER, PAC appears in CMS Medicare data with 2,361 Part D claims and 175 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAREN LEUENBERGER, PAC's credentials?
KAREN LEUENBERGER, PAC's NPI is 1689856510 with credentials PAC. 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