Active NPI
William Ivan Buniak, DO
- Gastroenterology Physician
- Liverpool, NY
National Provider Identifier
1699235648
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 337198
- Practice address
- 5112 W Taft Rd Ste H
Liverpool, NY 13088-4991 - Phone
- (315) 410-7499
- Fax
- (315) 410-7490
- NPI assigned
- Mar 24, 2019
- Last updated
- Jun 20, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | NU | ||
| Gastroenterology Physician | 207RG0100X | 337198 | NY | Primary |
Addresses
Primary practice location
5112 W Taft Rd Ste H
Liverpool, NY 13088-4991
Mailing address
5112 W Taft Rd Ste H
Liverpool, NY 13088-4991
Phone (315) 452-3235
Other practice location 1
240 Meeting House Ln
Southampton, NY 11968-5009
Phone (631) 726-8200
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- Other, 2019
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
5112 W Taft Rd
Suite H
Liverpool, NY 13088-4866
Phone (315) 452-3235
Hospital & facility affiliations
- St Joseph's Hospital Health Center
- Samaritan Medical Center
- Oswego Hospital
- Wynn Hospital
- Auburn Community Hospital
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 99 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 65 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 337198 | NY | MD | Gastroenterology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Gastroenterology & Hepatology of Central New York, PC | Gastroenterology | Current | Accepting new patients |
| Digestive Disease Center of Central New York, LLC | Current | Accepting new patients |
Locations
5112 W Taft Rd
Ste H
Liverpool, NY 13088
Phone (315) 452-3235
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Gastroenterology Physician
- Liverpool, NY
- NPI 1043202641
-
- Ambulatory Surgical Clinic/Center
- Liverpool, NY
- NPI 1053505511
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Auburn, NY
- NPI 1093712911
-
- General Acute Care Hospital
- Oswego, NY
- NPI 1871678458
-
- General Acute Care Hospital
- Watertown, NY
- NPI 1598713745
-
- General Acute Care Hospital
- Syracuse, NY
- NPI 1508815333
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1553385600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1750377600000",
"number": "1699235648",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5112 W TAFT RD STE H",
"city": "LIVERPOOL",
"state": "NY",
"postal_code": "130884991",
"telephone_number": "315-452-3235",
"fax_number": "315-452-5726"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5112 W TAFT RD STE H",
"city": "LIVERPOOL",
"state": "NY",
"postal_code": "130884991",
"telephone_number": "315-410-7499",
"fax_number": "315-410-7490"
}
],
"practiceLocations": [
{
"address_1": "240 Meeting House Ln",
"address_purpose": "LOCATION",
"city": "Southampton",
"state": "NY",
"postal_code": "119685009",
"country_code": "US",
"telephone_number": "631-726-8200",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "BUNIAK",
"first_name": "WILLIAM",
"middle_name": "IVAN",
"name_prefix": "Dr.",
"credential": "DO",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2019-03-24",
"last_updated": "2025-06-20",
"certification_date": "2025-06-20",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "NU",
"license": null,
"primary": false
},
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "NY",
"license": "337198",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Liverpool, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.