William Buniak, DO
NPI 1699235648 · Gastroenterology Physician · Liverpool, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Buniak, DO is a Gastroenterology Physician provider in Liverpool, NY (NPI 1699235648).
Provider details
- NPI number
- 1699235648
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$181 across 3 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
Additional practice locations (1)
- 240 Meeting House LnSouthampton, NY 11968-5009Phone: (631) 726-8200
Registry dates
- Enumerated
- 2019-03-24
- Last updated
- 2025-06-20
- Certified
- 2025-06-20
Frequently asked questions
- What is William Buniak's NPI number?
- William Buniak's National Provider Identifier (NPI) is 1699235648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Buniak's specialty?
- William Buniak is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is William Buniak located?
- William Buniak's practice location on file with NPPES is 5112 W Taft Rd Ste H, Liverpool, NY 13088-4991.
- What is William Buniak's phone number?
- The practice phone number listed in the NPPES registry for William Buniak is (315) 410-7499.
- Does William Buniak accept Medicare?
- William Buniak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Buniak's NPI active?
- Yes — William Buniak's NPI (1699235648) is active in the NPPES registry as of the last update on 2025-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.