2026 NPPES data Medical Physician Assistant NPI 1649395229 PA
Verify on CMS →

WILLIAM GRAY, PA

Medical Physician Assistant in BAY SHORE, New York. 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
3K
Medicare Part D claims · 223 beneficiaries · Medical Physician Assistant avg: 1K
Industry payments
$1.3K
53 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WILLIAM GRAY, PA filed 2,678 Medicare Part D claims in 2023 as a Medical Physician Assistant in BAY SHORE, New York.

3K
Part D claims, 2023
$1.3K
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.

WILLIAM GRAY, PA's Medicare Part D volume vs every U.S. prescriber

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

2,678 Top 13% higher than 87% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 GRAY, PA?

Quality data not reported

NPI registry status

Active

Issued 03/20/2007

NPI 1649395229

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

2,678 149% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in New York

How Medical Physician Assistant compares to other specialties among New York providers

New York providers

Medical Physician Assistant share within New York

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

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).

WILLIAM GRAY, PA appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA credentials at 24 BRENTWOOD RD, BAY SHORE, NY, 11706, with a listed phone of (631) 647-4567. NPI 1649395229 was issued on 03/20/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRAY 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 2,678 prescription claims written by this provider, covering 223 Medicare beneficiaries and totaling roughly $209K in drug spend, with an opioid prescribing rate of 6.4%. 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

24 BRENTWOOD RD
BAY SHORE, NY 11706

Provider Details

NPI 1649395229
Specialty Medical Physician Assistant
Credentials PA
Gender Male
NPI Issued 03/20/2007

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 WILLIAM GRAY, PA. Source: openpaymentsdata.cms.gov.

Total received

$1.3K

Largest payer

Amgen Inc.

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 — New York NYSBPMC 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 ~100K New York medical licensees in 2023 — they are NOT specific to WILLIAM GRAY, PA. To verify WILLIAM GRAY, PA's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York 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.

2,678
Total Claims
$209K
Total Drug Cost
223
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,448
Total Day Supply
98,872
Generic Drug Cost
$45K
Opioid Claims
171 (6.4% rate)
Antibiotic Claims
70

Patient Demographics

Average Patient Age
66.7 years
Avg HCC Risk Score
1.15
Gender Split
53% female / 47% male
Age Distribution
<65: 64, 65-74: 113, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What WILLIAM GRAY, 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
159
Oxycodone Hcl
89
Amlodipine Besylate
80
Omeprazole
79
Losartan Potassium
77
Alprazolam
76
Metformin Hcl
76
Gabapentin
71
Albuterol Sulfate Hfa
Albuterol Sulfate
65
Diclofenac Sodium
60

* 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 WILLIAM GRAY, 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

WILLIAM GRAY, PA's 2,678 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as GRAY.

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

Frequently Asked Questions

What is WILLIAM GRAY, PA's specialty?
WILLIAM GRAY, PA specializes in Medical Physician Assistant and practices in BAY SHORE, New York. Credentials: PA.
How much does WILLIAM GRAY, PA prescribe under Medicare Part D?
In 2023, WILLIAM GRAY, PA wrote 2,678 Medicare Part D claims totaling $209K in drug costs for 223 beneficiaries.
Where is WILLIAM GRAY, PA located?
WILLIAM GRAY, PA is located at 24 BRENTWOOD RD, BAY SHORE, NY, 11706. Phone: (631) 647-4567.
What is WILLIAM GRAY, PA's NPI number?
WILLIAM GRAY, PA's National Provider Identifier (NPI) is 1649395229, issued on 03/20/2007.
Does WILLIAM GRAY, PA prescribe opioids?
Yes, WILLIAM GRAY, PA had 171 opioid claims in 2023 with an opioid prescribing rate of 6.4%.
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 WILLIAM GRAY, PA prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM GRAY, PA's most frequently prescribed drugs include Atorvastatin Calcium, Oxycodone Hcl, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM GRAY, PA accept Medicare?
WILLIAM GRAY, PA appears in CMS Medicare data with 2,678 Part D claims and 223 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM GRAY, PA's credentials?
WILLIAM GRAY, PA's NPI is 1649395229 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