Active NPI
James Tkacik, PA-C
- Medical Physician Assistant
- Olean, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Medical Physician Assistant
- License
- 0048831
- Practice address
- 535 Main St
Olean, NY 14760-1500 - Phone
- (716) 372-0141
- NPI assigned
- Jul 20, 2006
- Last updated
- Sep 9, 2026
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 4883 | NY | |
| Medical Physician Assistant | 363AM0700X | 0048831 | NY | Primary |
Addresses
Primary practice location
535 Main St
Olean, NY 14760-1500
Mailing address
535 Main St
Olean, NY 14760-1500
Phone (716) 372-0141
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 02503799 | Medicaid | NY |
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: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 004883 | NY | MD | Specialist |
| 0048831 | NY | MD | Medical Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| St James Hospital | Current | Accepting new patients | |
| Olean General Hospital | Current | Accepting new patients | |
| Olean General Hospital | Physician Assistant | Current | Accepting new patients |
| Wellnow Urgent Care, PC | Current | Accepting new patients | |
| Sleep Insights Medical Services, LLC | Past | Accepting new patients | |
| Olean Open MRI PC | Past | Accepting new patients |
Locations
411 Canisteo St
Hornell, NY 14843
Phone (607) 324-8000
7309 Seneca Rd N
Ste 108
Hornell, NY 14843
Phone (607) 385-3790
446 Fairview Ave
Ste 200
Hudson, NY 12534
Phone (518) 267-3496
7375 Oswego Rd
#1
Liverpool, NY 13090
Phone (315) 291-0064
7329 Seneca Rd N
North Hornell, NY 14843
Phone (607) 247-2200
908 Niagara Falls Blvd
Ste 208
North Tonawanda, NY 14120
Phone (716) 649-1613
515 Main St
Olean, NY 14760
Phone (716) 373-2600
515 Main St
#13282
Olean, NY 14760
Phone (716) 375-6993
4039 Route 219
Ste 101
Salamanca, NY 14779
Phone (716) 945-0361
116 Interstate Pkwy
Bradford, PA 16701
Phone (814) 362-8674
Interoperability endpoints
- https://api.platform.athenahealth.com/22039/brand/2/csg/1/fhir/r4
Organizations & group practices 11
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.
-
- Rural Acute Care Hospital
- Hornell, NY
- NPI 1013985399
-
dba WellNow Urgent Care
- Urgent Care Clinic/Center
- Liverpool, NY
- NPI 1669825162
-
- General Practice Physician
- Bradford, PA
- NPI 1649296781
NY, Physician Assistant
-
- Emergency Medicine Physician
- Williamsville, NY
- NPI 1508816521
-
- Emergency Medicine Physician
- Rochester, NY
- NPI 1003075029
-
- Hospitalist Physician
- Rochester, NY
- NPI 1922270420
-
- Emergency Medicine Physician
- Poughkeepsie, NY
- NPI 1093759847
-
dba Foothills Medical Group
- General Practice Physician
- Olean, NY
- NPI 1033499017
-
- Diagnostic Radiology Physician
- Olean, NY
- NPI 1891736302
-
- Sleep Medicine (Psychiatry & Neurology) Physician
- Rochester, NY
- NPI 1538345814
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153353600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788912000000",
"number": "1114947363",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "535 MAIN ST",
"city": "OLEAN",
"state": "NY",
"postal_code": "147601500",
"telephone_number": "716-372-0141"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "535 MAIN ST",
"city": "OLEAN",
"state": "NY",
"postal_code": "147601500",
"telephone_number": "716-372-0141"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TKACIK",
"first_name": "JAMES",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-20",
"last_updated": "2026-09-09",
"certification_date": "2026-09-09",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "NY",
"license": "4883",
"primary": false
},
{
"code": "363AM0700X",
"taxonomy_group": "",
"desc": "Physician Assistant, Medical",
"state": "NY",
"license": "0048831",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "02503799",
"state": "NY"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Olean, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.