NPPES file of Aug 9, 2026

William Ivan Buniak, DO

Gastroenterology Physician · Liverpool, NY

William Ivan Buniak, DO is a gastroenterology physician with a practice address in Liverpool, New York, and NPI 1699235648, issued on Mar 24, 2019. Check the license (New York 337198, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699235648
Name
William Ivan Buniak
Credential
DO
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
337198 NY
Self-reported in NPPES; status is on the state search
Practice location
5112 W Taft RD Ste H, Liverpool, NY 13088
Phone
(315) 410-7499
Enumerated
Mar 24, 2019
Record last updated
Jun 20, 2025
Fax
(315) 410-7490
Medicare enrollment
Enrolled (PECOS I20250724001998); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5112 W Taft RD Ste H

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Caitlyn Blumer, FNPFamily Nurse Practitioner1932941697
  2. Adriana BuniakFamily Nurse Practitioner1902732019
  3. Nicholas Buniak, MDInternal Medicine Physician1619437001
  4. Dadgrain Garner, PA-CPhysician Assistant1700586500
  5. Alize Hurtic, FNPFamily Nurse Practitioner1215819792
  6. Liliya Levandovski, FNP, DNPFamily Nurse Practitioner1598578262

Verify William Ivan Buniak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 337198
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $181.14

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Buniak$181.14
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Gastroenterology And Hepatology OF Central New York, PCLiverpool, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Ivan Buniak among 1,797 gastroenterology physician records in New York

William Ivan Buniak, DO is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 96% of them.

  • NPI issued2019 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2019 · median 1999 among the 1,378 with a school on file
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in New York

There are 1,797 gastroenterology physician records in New York.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Borys Buniak, MDLiverpool, NY 130881497747091
  2. Sara Gosselin, M.D.Liverpool, NY 130881326001538
  3. Thomas Romano, MDLiverpool, NY 130881720072846
  4. John Romano, MDLiverpool, NY 130881114381480
  5. Elaheh Harrington, MDEast Syracuse, NY 130571407316524
  6. Natalya Iorio, M.D.East Syracuse, NY 130571164862223
  7. Intikhab Iqbal, M.D.East Syracuse, NY 130571063650489
  8. Young Lee, M.D.East Syracuse, NY 130571831249465

Common questions

What is William Ivan Buniak, DO's NPI number?

William Ivan Buniak, DO's National Provider Identifier (NPI) is 1699235648, issued on Mar 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is William Ivan Buniak, DO located?

The NPPES record lists a practice address at 5112 W Taft RD Ste H, Liverpool, NY, 13088. Phone: (315) 410-7499. Providers update this record themselves, so call before visiting.

How can I verify William Ivan Buniak, DO's license?

NPPES lists New York license number 337198, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.