2026 NPPES data Physician Assistant NPI 1518578574
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WILLIAM GRIFFITH

Physician Assistant in ALLIANCE, Nebraska. 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
52
Medicare Part D claims · 43 beneficiaries · Physician Assistant avg: 790

What the federal data shows

WILLIAM GRIFFITH filed 52 Medicare Part D claims in 2023 as a Physician Assistant in ALLIANCE, Nebraska.

52
Part D claims, 2023

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.

WILLIAM GRIFFITH's Medicare Part D volume vs every U.S. prescriber

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

52 0th percentile higher than 0% of 1,370,886 prescribers

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

Quality data not reported

NPI registry status

Active

Issued 08/13/2020

NPI 1518578574

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

52 93% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Nebraska

How Physician Assistant compares to other specialties among Nebraska providers

Nebraska providers

Physician Assistant share within Nebraska

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (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).

WILLIAM GRIFFITH is a Physician Assistant provider practicing in ALLIANCE, Nebraska, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1518578574. 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.

WILLIAM GRIFFITH appears in the CMS NPPES registry as a Physician Assistant provider at 2101 BOX BUTTE AVE, ALLIANCE, NE, 69301, with a listed phone of (308) 762-6660. NPI 1518578574 was issued on 08/13/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIFFITH 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 52 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $2K 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.

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

2101 BOX BUTTE AVE
ALLIANCE, NE 69301

Provider Details

NPI 1518578574
Specialty Physician Assistant
Gender Male
NPI Issued 08/13/2020

Hospital and facility affiliations

Facilities where WILLIAM GRIFFITH 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.

BOX BUTTE GENERAL HOSPITAL
★★★★☆ 4/5
ALLIANCE, NE
Critical Access Hospitals
CMS CCN: 281360

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.

52
Total Claims
$2K
Total Drug Cost
43
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
53
Total Day Supply
726
Generic Drug Cost
$435
Antibiotic Claims
22

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.71
Gender Split
65% female / 35% male

Physician Assistant Overview

How WILLIAM GRIFFITH fits within the Physician Assistant landscape nationally.

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

WILLIAM GRIFFITH's 52 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Nebraska

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

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

Frequently Asked Questions

What is WILLIAM GRIFFITH's specialty?
WILLIAM GRIFFITH specializes in Physician Assistant and practices in ALLIANCE, Nebraska.
How much does WILLIAM GRIFFITH prescribe under Medicare Part D?
In 2023, WILLIAM GRIFFITH wrote 52 Medicare Part D claims totaling $2K in drug costs for 43 beneficiaries.
Where is WILLIAM GRIFFITH located?
WILLIAM GRIFFITH is located at 2101 BOX BUTTE AVE, ALLIANCE, NE, 69301. Phone: (308) 762-6660.
What is WILLIAM GRIFFITH's NPI number?
WILLIAM GRIFFITH's National Provider Identifier (NPI) is 1518578574, issued on 08/13/2020.
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.
Does WILLIAM GRIFFITH accept Medicare?
WILLIAM GRIFFITH appears in CMS Medicare data with 52 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM GRIFFITH's credentials?
WILLIAM GRIFFITH's NPI is 1518578574. 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