Active NPI
Stephen Kotopka
- Internal Medicine Physician
- Buffalo, NY
National Provider Identifier
1649975509
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 343560
- Practice address
- 100 High St
Buffalo, NY 14203-1126 - Phone
- (716) 859-5600
- NPI assigned
- Mar 31, 2023
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 343560 | NY | Primary |
Addresses
Primary practice location
100 High St
Buffalo, NY 14203-1126
Mailing address
14 Elmview Dr
Tonawanda, NY 14150-7806
Phone (716) 344-7907
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- Other, 2023
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
4498 Main St
Suite 23
Amherst, NY 14226-3826
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1680220800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782691200000",
"number": "1649975509",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "14 ELMVIEW DR",
"city": "TONAWANDA",
"state": "NY",
"postal_code": "141507806",
"telephone_number": "716-344-7907"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "100 HIGH ST",
"city": "BUFFALO",
"state": "NY",
"postal_code": "142031126",
"telephone_number": "716-859-5600"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KOTOPKA",
"first_name": "STEPHEN",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2023-03-31",
"last_updated": "2026-06-29",
"certification_date": "2026-06-29",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NY",
"license": "343560",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Buffalo, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 2026; 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.