2026 NPPES data Medical Physician Assistant NPI 1134479926 PA-C
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KHOU XIONG, PA-C

Medical Physician Assistant in LA CROSSE, Wisconsin. 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 · 102 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.6808/100
▲ 7 pts above national avg 83.1 · [object Object]

What the federal data shows

KHOU XIONG, PA-C reported a CMS MIPS final score of 89.6808/100 — above the 83.1 national average — and filed 2,179 Medicare Part D claims in 2023.

89.6808/100
MIPS score · +7 vs avg
2K
Part D claims, 2023
73%
generic prescribing

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.

KHOU XIONG, PA-C's MIPS score vs every scored U.S. clinician

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

90 Top 42% higher than 58% 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

What does the federal data show about KHOU XIONG, PA-C?

High performer (top quartile)

NPI registry status

Active

Issued 09/19/2012

NPI 1134479926

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

2,179 102% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

MIPS final score

89.6808/100 6.580800000000011% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Wisconsin

How Medical Physician Assistant compares to other specialties among Wisconsin providers

Wisconsin providers

Medical Physician Assistant share within Wisconsin

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

Medicare quality performance — MIPS

KHOU XIONG, PA-C's 2023 MIPS final score plotted against the Medical Physician Assistant national average

High performer (top quartile)
MIPS Final Score
89.6808/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Physician Assistant) — 89.6808/100 vs national avg 83.1

0%100%National avg83%89.7%
MIPS final score (Medical Physician Assistant) — 89.6808/100 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).

KHOU XIONG, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 700 WEST AVE S, LA CROSSE, WI, 54601, with a listed phone of (608) 785-0940. NPI 1134479926 was issued on 09/19/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what XIONG 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 2,179 prescription claims written by this provider, covering 102 Medicare beneficiaries and totaling roughly $316K in drug spend, split 27% brand-name and 73% generic by claim count, with an opioid prescribing rate of 4.1%. 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 89.6808/100 for the 2023 performance year (Quality 81.2378), compared with the national average of 83.1.

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

700 WEST AVE S
LA CROSSE, WI 54601

Provider Details

NPI 1134479926
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 09/19/2012

CMS Quality Score (MIPS)

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

89.6808
Final Score
Avg: 83.1
81.2378
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where KHOU XIONG, PA-C 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.

RED CLIFF BAND OF LAKE SUPERIOR CHIPPEWA INDIANS
BAYFIELD, WI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

KHOU XIONG, PA-C — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 2,179 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.

2,179
Total Claims
$316K
Total Drug Cost
102
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,639
Total Day Supply
102,962
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$284K
Generic Drug Cost
$30K
Opioid Claims
90 (4.1% rate)
Antibiotic Claims
46

Patient Demographics

Average Patient Age
66.8 years
Avg HCC Risk Score
1.44
Gender Split
58% female / 42% male
Age Distribution
<65: 25, 65-74: 55, 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 KHOU XIONG, PA-C 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
Gabapentin
123
Atorvastatin Calcium
102
Lisinopril
75
Omeprazole
69
Advair Diskus
Fluticasone Propion/Salmeterol
58
Metoprolol Succinate
53
Metformin Hcl
49
Levothyroxine Sodium
38
Pregabalin
38
Amlodipine Besylate
36

* 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 KHOU XIONG, PA-C 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

KHOU XIONG, PA-C's 2,179 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Wisconsin

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

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

Frequently Asked Questions

What is KHOU XIONG, PA-C's specialty?
KHOU XIONG, PA-C specializes in Medical Physician Assistant and practices in LA CROSSE, Wisconsin. Credentials: PA-C.
How much does KHOU XIONG, PA-C prescribe under Medicare Part D?
In 2023, KHOU XIONG, PA-C wrote 2,179 Medicare Part D claims totaling $316K in drug costs for 102 beneficiaries.
What is KHOU XIONG, PA-C's Medicare quality score?
KHOU XIONG, PA-C has a CMS MIPS Final Score of 89.6808/100 (Quality: 81.2378). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KHOU XIONG, PA-C located?
KHOU XIONG, PA-C is located at 700 WEST AVE S, LA CROSSE, WI, 54601. Phone: (608) 785-0940.
What is KHOU XIONG, PA-C's NPI number?
KHOU XIONG, PA-C's National Provider Identifier (NPI) is 1134479926, issued on 09/19/2012.
Does KHOU XIONG, PA-C prescribe more brand-name or generic drugs?
KHOU XIONG, PA-C's prescribing is 27% brand-name and 73% generic drugs by claim count, with $284K in brand drug costs.
Does KHOU XIONG, PA-C prescribe opioids?
Yes, KHOU XIONG, PA-C had 90 opioid claims in 2023 with an opioid prescribing rate of 4.1%.
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 KHOU XIONG, PA-C prescribe most often?
Based on 2023 Medicare Part D data, KHOU XIONG, PA-C's most frequently prescribed drugs include Gabapentin, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KHOU XIONG, PA-C accept Medicare?
KHOU XIONG, PA-C appears in CMS Medicare data with 2,179 Part D claims and 102 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KHOU XIONG, PA-C's credentials?
KHOU XIONG, PA-C's NPI is 1134479926 with credentials PA-C. 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