NPIMap

Individual provider Active NPI

Nicholas Frederick Willison, DO

  • Anesthesiology Physician
  • Greensburg, PA
National Provider Identifier
1174102826
Registry record updated Aug 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
OS024586 Issued in PA
Practice address
532 W Pittsburgh St
Greensburg, PA 15601-2239
Phone
(724) 832-4000
NPI assigned
Apr 7, 2021
Last updated
Aug 3, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 3, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X OS024586 PA Primary

Addresses

Primary practice location

532 W Pittsburgh St
Greensburg, PA 15601-2239

Mailing address

532 W Pittsburgh St
Greensburg, PA 15601-2239
Phone (724) 832-4000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250616000789 PA Practitioner - Anesthesiology 6204235492 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Lake Erie College of Osteopathic Medicine, Erie, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

532 W Pittsburgh St
Greensburg, PA 15601-2239
Phone (724) 832-4368

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
OS024586PAMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Excela Health Physician Practices, Inc. CurrentSince Aug 1, 2025 Accepting new patients
Excela Health Physician Practices, Inc CurrentSince Aug 1, 2025 Accepting new patients
Excela Health Physician Practices, Inc Current Accepting new patients

Locations

532 W Pittsburgh St
Greensburg, PA 15601
Phone (724) 832-4000

Organizations & group practices 3

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.

Hospital & facility affiliations 11

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1617753600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754179200000",
    "number": "1174102826",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "532 W PITTSBURGH ST",
            "city": "GREENSBURG",
            "state": "PA",
            "postal_code": "156012239",
            "telephone_number": "724-832-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "532 W PITTSBURGH ST",
            "city": "GREENSBURG",
            "state": "PA",
            "postal_code": "156012239",
            "telephone_number": "724-832-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLISON",
        "first_name": "NICHOLAS",
        "middle_name": "FREDERICK",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-07",
        "last_updated": "2025-08-03",
        "certification_date": "2025-08-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "PA",
            "license": "OS024586",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Greensburg, PA

Sources for this page

Verify at the official NPI Registry.