2026 NPPES data Physician Assistant NPI 1538800859 PA-C
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LEODEGARIO ALONSO, PA-C

Physician Assistant in HARRISONBURG, Virginia. 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
718
Medicare Part D claims · 239 beneficiaries · Physician Assistant avg: 790
MIPS score
95.1126/100
▲ 12 pts above national avg 83.1 · [object Object]
What the federal data reveals: LEODEGARIO ALONSO, PA-C is a Physician Assistant ([object Object]) practicing in HARRISONBURG, Virginia with a Medicare Part D prescribing footprint of 718 claims across 239 beneficiaries . Their CMS MIPS Final Score of 95.1126/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: LEODEGARIO ALONSO, PA-C reported a CMS MIPS final score of 95.1126 out of 100, above the 83.1 national average, and filed 718 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

LEODEGARIO ALONSO, PA-C at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/02/2022

NPI 1538800859

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

718 9% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

95.1126/100 12.012600000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Virginia

How Physician Assistant compares to other specialties among Virginia providers

Virginia providers

Physician Assistant share within Virginia

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

Medicare quality performance — MIPS

LEODEGARIO ALONSO, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
95.1126/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 95.1126/100 vs national avg 83.1

0%100%National avg83%95.1%
MIPS final score (Physician Assistant) — 95.1126/100 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).

LEODEGARIO ALONSO, PA-C is a Physician Assistant provider practicing in HARRISONBURG, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1538800859. 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.

LEODEGARIO ALONSO, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1661 S MAIN ST, HARRISONBURG, VA, 22801, with a listed phone of (540) 564-7300. NPI 1538800859 was issued on 04/02/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALONSO 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 718 prescription claims written by this provider, covering 239 Medicare beneficiaries and totaling roughly $45K in drug spend. 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 95.1126/100 for the 2023 performance year (Quality 86.3184), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

1661 S MAIN ST
HARRISONBURG, VA 22801

Provider Details

NPI 1538800859
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 04/02/2022

CMS Quality Score (MIPS)

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

95.1126
Final Score
Avg: 83.1
86.3184
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where LEODEGARIO ALONSO, 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.

RMH MEDICAL GROUP LLC
HARRISONBURG, VA

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

718
Total Claims
$45K
Total Drug Cost
239
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,226
Total Day Supply
32,339
Generic Drug Cost
$10K
Antibiotic Claims
80

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.26
Gender Split
54% female / 46% male
Age Distribution
<65: 36, 65-74: 110, 75-84: 68, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Azelastine Hcl
60
Fluticasone Propionate
34
Atorvastatin Calcium
32
Methylprednisolone
25
Albuterol Sulfate Hfa
Albuterol Sulfate
24
Amlodipine Besylate
21
Losartan Potassium
20
Levothyroxine Sodium
19
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
17
Metformin Hcl
17

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

Physician Assistant Overview

How LEODEGARIO ALONSO, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

LEODEGARIO ALONSO, PA-C's 718 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Virginia

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

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

Frequently Asked Questions

What is LEODEGARIO ALONSO, PA-C's specialty?
LEODEGARIO ALONSO, PA-C specializes in Physician Assistant and practices in HARRISONBURG, Virginia. Credentials: PA-C.
How much does LEODEGARIO ALONSO, PA-C prescribe under Medicare Part D?
In 2023, LEODEGARIO ALONSO, PA-C wrote 718 Medicare Part D claims totaling $45K in drug costs for 239 beneficiaries.
What is LEODEGARIO ALONSO, PA-C's Medicare quality score?
LEODEGARIO ALONSO, PA-C has a CMS MIPS Final Score of 95.1126/100 (Quality: 86.3184). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is LEODEGARIO ALONSO, PA-C located?
LEODEGARIO ALONSO, PA-C is located at 1661 S MAIN ST, HARRISONBURG, VA, 22801. Phone: (540) 564-7300.
What is LEODEGARIO ALONSO, PA-C's NPI number?
LEODEGARIO ALONSO, PA-C's National Provider Identifier (NPI) is 1538800859, issued on 04/02/2022.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does LEODEGARIO ALONSO, PA-C prescribe most often?
Based on 2023 Medicare Part D data, LEODEGARIO ALONSO, PA-C's most frequently prescribed drugs include Azelastine Hcl, Fluticasone Propionate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEODEGARIO ALONSO, PA-C accept Medicare?
LEODEGARIO ALONSO, PA-C appears in CMS Medicare data with 718 Part D claims and 239 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEODEGARIO ALONSO, PA-C's credentials?
LEODEGARIO ALONSO, PA-C's NPI is 1538800859 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