Individual provider Active NPI

Alyssa Ann O'Neill, CRNA

  • Certified Registered Nurse Anesthetist
  • Paoli, PA
National Provider Identifier
1700189776
Registry record updated Dec 14, 2010
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
RN554691 Issued in PA
Practice address
255 W Lancaster Ave
Paoli, PA 19301-1763
Phone
(610) 648-1000
Fax
(517) 787-2922
NPI assigned
Dec 14, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 14, 2010

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X RN554691 PA Primary

Addresses

Primary practice location

255 W Lancaster Ave
Paoli, PA 19301-1763

Mailing address

255 W Michigan Ave
PO Box 1123
Jackson, MI 49201-2218
Phone (517) 787-6440

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110323000864 PA Practitioner - Certified Registered Nurse Anesthetist (Crna) 5597948869 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
United Anesthesia Services PCGroup PAC ID 3173437613, 437 clinicians

Practice addresses (Care Compare)

100 E Lancaster Ave
Wynewood, PA 19096-3450
Phone (610) 645-2000

701 E Marshall St
West Chester, PA 19380-4412
Phone (610) 431-5472

744 W Lancaster Ave
Wayne, PA 19082-2523
Phone (610) 645-2000

Hospital & facility affiliations

  • Main Line Hospital Lankenau Hospital, Wynnewood, PA, CCN 390195
  • Chester County Hospital Hospital, West Chester, PA, CCN 390179

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
RN554691PAMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Clinical Care Associates of the University of Pennsylvania Health CurrentSince Jun 16, 2025 Accepting new patients
United Anesthesia Services PC Nurse Anesthetist, Certified Registered CurrentSince Jan 2, 2011 Accepting new patients
Clinical Care Associates of the University of Pennsylvania Health Syst CurrentSince Jun 16, 2025 Accepting new patients
Clinical Care Associates of the University of Pennsylvania Health Current Accepting new patients

Locations

255 W Michigan Ave
Jackson, MI 49201

255 W Lancaster Ave
Paoli, PA 19301
Phone (484) 337-4286

744 Lancaster Ave
Wayne, PA 19087
Phone (215) 244-7400

701 E Marshall St
#141
West Chester, PA 19380
Phone (610) 248-5831

777 Township Line Rd
Ste 200
Yardley, PA 19067
Phone (215) 860-0775

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 2

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": "1292284800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1292284800000",
    "number": "1700189776",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "255 W MICHIGAN AVE",
            "address_2": "PO BOX 1123",
            "city": "JACKSON",
            "state": "MI",
            "postal_code": "492012218",
            "telephone_number": "517-787-6440",
            "fax_number": "517-787-7320"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "255 W LANCASTER AVE",
            "city": "PAOLI",
            "state": "PA",
            "postal_code": "193011763",
            "telephone_number": "610-648-1000",
            "fax_number": "517-787-2922"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'NEILL",
        "first_name": "ALYSSA",
        "middle_name": "ANN",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-12-14",
        "last_updated": "2010-12-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "PA",
            "license": "RN554691",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Paoli, PA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 14, 2010; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.

Verify at the official NPI Registry.