2026 NPPES data Surgical Physician Assistant NPI 1578632238 PA-C
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JOSHUA MAYES, PA-C

Surgical Physician Assistant in CENTRALIA, 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
473
Medicare Part D claims · 181 beneficiaries · Surgical Physician Assistant avg: 316
Industry payments
$32.77
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOSHUA MAYES, PA-C filed 473 Medicare Part D claims in 2023 as a Surgical Physician Assistant in CENTRALIA, Washington.

473
Part D claims, 2023
$32.77
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.

JOSHUA MAYES, PA-C's Medicare Part D volume vs every U.S. prescriber

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

473 Top 38% higher than 62% 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%). This entry sits in this band. 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 JOSHUA MAYES, PA-C?

Quality data not reported

NPI registry status

Active

Issued 11/07/2006

NPI 1578632238

Primary specialty

Surgical Physician Assistant

Mid-sized

16,119 US NPIs in this specialty

Medicare Part D claims

473 50% vs specialty avg

2023 prescription claims

Specialty avg: 316

Specialty distribution in Washington

How Surgical Physician Assistant compares to other specialties among Washington providers

Washington providers

Surgical Physician Assistant share within Washington

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

Specialty board-certification context

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

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

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

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

JOSHUA MAYES, PA-C appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA-C credentials at 1900 COOKS HILL RD STE A, CENTRALIA, WA, 98531, with a listed phone of (360) 330-1897. NPI 1578632238 was issued on 11/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAYES 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 473 prescription claims written by this provider, covering 181 Medicare beneficiaries and totaling roughly $6K in drug spend, with an opioid prescribing rate of 35.5%. 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.

Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,119 enrolled providers across 54 states and an average of 316 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

1900 COOKS HILL RD STE A
CENTRALIA, WA 98531

Provider Details

NPI 1578632238
Specialty Surgical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 11/07/2006

Hospital and facility affiliations

Facilities where JOSHUA MAYES, 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.

OLYMPIA ORTHOPAEDIC ASSOCIATES PLLC
OLYMPIA, WA
WASHINGTON ORTHOPAEDIC CENTER INC PS
CENTRALIA, WA

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 JOSHUA MAYES, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$33

Largest payer

Stryker Corporation

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.

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 JOSHUA MAYES, PA-C. To verify JOSHUA MAYES, PA-C'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.

473
Total Claims
$6K
Total Drug Cost
181
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
496
Total Day Supply
4,243
Generic Drug Cost
$5K
Opioid Claims
168 (35.5% rate)
Antibiotic Claims
144

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
1.05
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

What JOSHUA MAYES, 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
Oxycodone Hcl
116
Ondansetron Odt
Ondansetron
75
Cephalexin
73
Amoxicillin
50
Diclofenac Sodium
26
Ondansetron Hcl
24
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
23
Meloxicam
15
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
15

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

Surgical Physician Assistant Overview

How JOSHUA MAYES, PA-C fits within the Surgical Physician Assistant landscape nationally.

16,119
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider

JOSHUA MAYES, PA-C's 473 claims are above the specialty average of 316.

Nearby Surgical Physician Assistant Providers in Washington

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

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

Frequently Asked Questions

What is JOSHUA MAYES, PA-C's specialty?
JOSHUA MAYES, PA-C specializes in Surgical Physician Assistant and practices in CENTRALIA, Washington. Credentials: PA-C.
How much does JOSHUA MAYES, PA-C prescribe under Medicare Part D?
In 2023, JOSHUA MAYES, PA-C wrote 473 Medicare Part D claims totaling $6K in drug costs for 181 beneficiaries.
Where is JOSHUA MAYES, PA-C located?
JOSHUA MAYES, PA-C is located at 1900 COOKS HILL RD STE A, CENTRALIA, WA, 98531. Phone: (360) 330-1897.
What is JOSHUA MAYES, PA-C's NPI number?
JOSHUA MAYES, PA-C's National Provider Identifier (NPI) is 1578632238, issued on 11/07/2006.
Does JOSHUA MAYES, PA-C prescribe opioids?
Yes, JOSHUA MAYES, PA-C had 168 opioid claims in 2023 with an opioid prescribing rate of 35.5%.
How many Surgical Physician Assistant providers are there in the US?
There are 16,119 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
What drugs does JOSHUA MAYES, PA-C prescribe most often?
Based on 2023 Medicare Part D data, JOSHUA MAYES, PA-C's most frequently prescribed drugs include Oxycodone Hcl, Ondansetron Odt, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSHUA MAYES, PA-C accept Medicare?
JOSHUA MAYES, PA-C appears in CMS Medicare data with 473 Part D claims and 181 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSHUA MAYES, PA-C's credentials?
JOSHUA MAYES, PA-C's NPI is 1578632238 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.
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