2026 NPPES data Surgical Physician Assistant NPI 1558615906 PA-C
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WILLY MOY, PA-C

Surgical Physician Assistant in NORTH EASTON, Massachusetts. 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
762
Medicare Part D claims · 97 beneficiaries · Surgical Physician Assistant avg: 316
What the federal data reveals: WILLY MOY, PA-C is a Surgical Physician Assistant ([object Object]) practicing in NORTH EASTON, Massachusetts with a Medicare Part D prescribing footprint of 762 claims across 97 beneficiaries .

What stands out: WILLY MOY, PA-C filed 762 Medicare Part D claims in 2023 across NORTH EASTON, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

WILLY MOY, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 11/07/2012

NPI 1558615906

Primary specialty

Surgical Physician Assistant

Mid-sized

16,119 US NPIs in this specialty

Medicare Part D claims

762 141% vs specialty avg

2023 prescription claims

Specialty avg: 316

Specialty distribution in Massachusetts

How Surgical Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Surgical Physician Assistant share within Massachusetts

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

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).

WILLY MOY, PA-C is a Surgical Physician Assistant provider practicing in NORTH EASTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1558615906. 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.

WILLY MOY, PA-C appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA-C credentials at 15 ROCHE BROS WAY, NORTH EASTON, MA, 02356, with a listed phone of (781) 344-3535. NPI 1558615906 was issued on 11/07/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MOY 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 762 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $53K in drug spend, with an opioid prescribing rate of 5.5%. 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

15 ROCHE BROS WAY
NORTH EASTON, MA 02356

Provider Details

NPI 1558615906
Specialty Surgical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 11/07/2012

Hospital and facility affiliations

Facilities where WILLY MOY, 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.

INNOVATIVE PHYSICIAN SERVICES LLC
CHELSEA, MA

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

License & disciplinary context — Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 — they are NOT specific to WILLY MOY, PA-C. To verify WILLY MOY, PA-C's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM 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 Massachusetts 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.

762
Total Claims
$53K
Total Drug Cost
97
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
810
Total Day Supply
20,926
Generic Drug Cost
$15K
Opioid Claims
42 (5.5% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
2.27
Gender Split
64% female / 36% male
Age Distribution
<65: 30, 65-74: 16, 75-84: 29, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Gabapentin
51
Cyclobenzaprine Hcl
47
Metoprolol Succinate
33
Atorvastatin Calcium
29
Eliquis
Apixaban
29
Furosemide
26
Tramadol Hcl
26
Duloxetine Hcl
20
Levothyroxine Sodium
20
Tamsulosin Hcl
20

* 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 WILLY MOY, 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

WILLY MOY, PA-C's 762 claims are above the specialty average of 316.

Nearby Surgical Physician Assistant Providers in Massachusetts

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

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

Frequently Asked Questions

What is WILLY MOY, PA-C's specialty?
WILLY MOY, PA-C specializes in Surgical Physician Assistant and practices in NORTH EASTON, Massachusetts. Credentials: PA-C.
How much does WILLY MOY, PA-C prescribe under Medicare Part D?
In 2023, WILLY MOY, PA-C wrote 762 Medicare Part D claims totaling $53K in drug costs for 97 beneficiaries.
Where is WILLY MOY, PA-C located?
WILLY MOY, PA-C is located at 15 ROCHE BROS WAY, NORTH EASTON, MA, 02356. Phone: (781) 344-3535.
What is WILLY MOY, PA-C's NPI number?
WILLY MOY, PA-C's National Provider Identifier (NPI) is 1558615906, issued on 11/07/2012.
Does WILLY MOY, PA-C prescribe opioids?
Yes, WILLY MOY, PA-C had 42 opioid claims in 2023 with an opioid prescribing rate of 5.5%.
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 WILLY MOY, PA-C prescribe most often?
Based on 2023 Medicare Part D data, WILLY MOY, PA-C's most frequently prescribed drugs include Gabapentin, Cyclobenzaprine Hcl, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLY MOY, PA-C accept Medicare?
WILLY MOY, PA-C appears in CMS Medicare data with 762 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLY MOY, PA-C's credentials?
WILLY MOY, PA-C's NPI is 1558615906 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