2026 NPPES data Medical Physician Assistant NPI 1588012538 PA
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LEIGH GILLIVER, PA

Medical Physician Assistant in SPOKANE, Washington. 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
266
Medicare Part D claims · 99 beneficiaries · Medical Physician Assistant avg: 1K

What the federal data shows

LEIGH GILLIVER, PA filed 266 Medicare Part D claims in 2023 as a Medical Physician Assistant in SPOKANE, Washington.

266
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.

LEIGH GILLIVER, PA's Medicare Part D volume vs every U.S. prescriber

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

266 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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 LEIGH GILLIVER, PA?

Quality data not reported

NPI registry status

Active

Issued 06/01/2016

NPI 1588012538

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

266 75% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Washington

How Medical Physician Assistant compares to other specialties among Washington providers

Washington providers

Medical Physician Assistant share within Washington

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

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).

LEIGH GILLIVER, PA appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA credentials at 220 E ROWAN AVE STE 300, SPOKANE, WA, 99207, with a listed phone of (509) 489-3554. NPI 1588012538 was issued on 06/01/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GILLIVER 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 266 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $11K in drug spend, with an opioid prescribing rate of 7.1%. 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.

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

220 E ROWAN AVE STE 300
SPOKANE, WA 99207

Provider Details

NPI 1588012538
Specialty Medical Physician Assistant
Credentials PA
Gender Male
NPI Issued 06/01/2016

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to LEIGH GILLIVER, PA. To verify LEIGH GILLIVER, PA's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

266
Total Claims
$11K
Total Drug Cost
99
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
285
Total Day Supply
5,554
Generic Drug Cost
$5K
Opioid Claims
19 (7.1% rate)
Antibiotic Claims
60

Patient Demographics

Average Patient Age
73.9 years
Avg HCC Risk Score
1.67
Gender Split
55% female / 45% male
Age Distribution
<65: 12, 65-74: 34, 75-84: 39, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

What LEIGH GILLIVER, PA 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
Atorvastatin Calcium
16
Cefuroxime
Cefuroxime Axetil
16
Clopidogrel
Clopidogrel Bisulfate
12

* 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 LEIGH GILLIVER, PA 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

LEIGH GILLIVER, PA's 266 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Washington

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

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

Frequently Asked Questions

What is LEIGH GILLIVER, PA's specialty?
LEIGH GILLIVER, PA specializes in Medical Physician Assistant and practices in SPOKANE, Washington. Credentials: PA.
How much does LEIGH GILLIVER, PA prescribe under Medicare Part D?
In 2023, LEIGH GILLIVER, PA wrote 266 Medicare Part D claims totaling $11K in drug costs for 99 beneficiaries.
Where is LEIGH GILLIVER, PA located?
LEIGH GILLIVER, PA is located at 220 E ROWAN AVE STE 300, SPOKANE, WA, 99207. Phone: (509) 489-3554.
What is LEIGH GILLIVER, PA's NPI number?
LEIGH GILLIVER, PA's National Provider Identifier (NPI) is 1588012538, issued on 06/01/2016.
Does LEIGH GILLIVER, PA prescribe opioids?
Yes, LEIGH GILLIVER, PA had 19 opioid claims in 2023 with an opioid prescribing rate of 7.1%.
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 LEIGH GILLIVER, PA prescribe most often?
Based on 2023 Medicare Part D data, LEIGH GILLIVER, PA's most frequently prescribed drugs include Atorvastatin Calcium, Cefuroxime, Clopidogrel. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEIGH GILLIVER, PA accept Medicare?
LEIGH GILLIVER, PA appears in CMS Medicare data with 266 Part D claims and 99 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEIGH GILLIVER, PA's credentials?
LEIGH GILLIVER, PA's NPI is 1588012538 with credentials PA. 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