William Gray, PA
NPI 1649395229 · Medical Physician Assistant · Bay Shore, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Gray, PA is a Medical Physician Assistant provider in Bay Shore, NY (NPI 1649395229).
Provider details
- NPI number
- 1649395229
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- Yes
- License
- 003709-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 207 | 50 |
| Amlodipine Besylate | 142 | 34 |
| Oxycodone Hcl | 133 | 18 |
| Metformin Hcl | 129 | 30 |
| Losartan Potassium | 103 | 24 |
| Semaglutidebrand: Ozempic | 103 | 18 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,341 across 53 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-20
- Last updated
- 2023-02-20
- Certified
- 2023-02-20
Frequently asked questions
- What is William Gray's NPI number?
- William Gray's National Provider Identifier (NPI) is 1649395229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gray's specialty?
- William Gray is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Gray located?
- William Gray's practice location on file with NPPES is 24 Brentwood Rd, Bay Shore, NY 11706-8011.
- What is William Gray's phone number?
- The practice phone number listed in the NPPES registry for William Gray is (631) 647-4567.
- Does William Gray accept Medicare?
- William Gray is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Gray's NPI active?
- Yes — William Gray's NPI (1649395229) is active in the NPPES registry as of the last update on 2023-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.