Individual provider Active NPI

Catherine Elizabeth Williams, PA-C

  • Physician Assistant
  • New York, NY
National Provider Identifier
1114281839
Registry record updated Oct 2, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
61983 Issued in CA
Practice address
535 E 70TH St
New York, NY 10021-4823
Phone
(910) 990-6863
NPI assigned
Jun 27, 2012
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 2, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 0010-03612 NC
Physician Assistant 363A00000X 61983 CA Primary

Addresses

Primary practice location

535 E 70TH St
New York, NY 10021-4823

Mailing address

535 E 70TH St
New York, NY 10021-4823
Phone (910) 990-6863

Other identifiers 1

IdentifierTypeStateIssuer
8102642MedicaidNC

Electronic endpoints 3

TypeEndpointUseAffiliation
Direct Messaging Address cwilliams308713@direct.hss.edu Direct
FHIR URL https://epicproxy.et0927.epichosted.com/FHIRProxy/api/FHIR/R4/ Direct
FHIR URL https://epicproxy.et0927.epichosted.com/FHIRProxy/api/FHIR/DSTU2 Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NC, CA, NY3 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20120827000350 NC Practitioner - Physician Assistant 8820245806 Reassigns benefits to 2 organizations
I20230330001492 CA Practitioner - Physician Assistant 8820245806 Reassigns benefits to 5 organizations
I20231013002343 NY Practitioner - Physician Assistant 8820245806 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Carolina Physical Therapy Associates LLCGroup PAC ID 7012989684, shared by 7 NPIs, 496 clinicians

Practice addresses (Care Compare)

1129 Weaver Dairy Rd
Chapel Hill, NC 27514-1960
Phone (919) 968-5959

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
0010-03612NCMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Ny Society for the Relief of Ruptured & Crippled Maintaining CurrentSince Jan 1, 2026 Accepting new patients
Ny Society for the Relief of Ruptured & Crippled Maintaining CurrentSince Jan 1, 2026 Accepting new patients
University of California San Francisco CurrentSince Mar 24, 2023 Accepting new patients
Wakemed Specialists Group LLC CurrentSince Aug 22, 2019 Accepting new patients
UCSF Medical Group Business Services CurrentSince Mar 24, 2023 Accepting new patients
Wakemed Specialists Group LLC CurrentSince Aug 22, 2019 Accepting new patients
University of California San Francisco CurrentSince Mar 24, 2023 Accepting new patients
Raleigh Emergency Surgical, Inc PastSince Nov 17, 2024 Accepting new patients
Wake Forest University Health Sciences Past Accepting new patients
HSS Non Par Providers Past Accepting new patients
Wake Forest University Health Sciences Past Accepting new patients
Wake Specialty Physicians LLC PastSince Nov 8, 2025 Accepting new patients

Locations

3100 San Pablo Ave
Berkeley, CA 94702
Phone (510) 985-5020

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

1500 Owens St
San Francisco, CA 94158
Phone (415) 353-2808

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

2001 The Embarcadero
Ste 1500
San Francisco, CA 94143
Phone (415) 353-1606

10000 Falls of Neuse Rd
Ste 205
Raleigh, NC 27614
Phone (919) 350-1630

10000 Falls of Neuse Rd
Raleigh, NC 27614
Phone (919) 350-1300

3000 New Bern Ave
Raleigh, NC 27610
Phone (919) 350-7000

140 E Ridgewood Ave
Ste 175S
Paramus, NJ 07652
Phone (201) 599-8000

535 E 70th St
New York, NY 10021

Interoperability endpoints

  • FHIR API: https://epicproxy.et0927.epichosted.com/FHIRProxy/api/FHIR/DSTU2
  • FHIR API: https://epicproxy.et0927.epichosted.com/FHIRProxy/api/FHIR/R4/
  • Direct secure messaging: cwilliams155074@directhisp.wakemed.org

Organizations & group practices 19

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.

View all 19

NPI Registry JSON

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

{
    "created_epoch": "1340755200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1696204800000",
    "number": "1114281839",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "535 E 70TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100214823",
            "telephone_number": "910-990-6863"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "535 E 70TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100214823",
            "telephone_number": "910-990-6863"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "CATHERINE",
        "middle_name": "ELIZABETH",
        "name_prefix": "Ms.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-06-27",
        "last_updated": "2023-10-02",
        "certification_date": "2023-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NC",
            "license": "0010-03612",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "61983",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8102642",
            "state": "NC"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cwilliams308713@direct.hss.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "535 E 70th St",
            "city": "New York",
            "state": "NY",
            "country_code": "US",
            "postal_code": "100214823",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0927.epichosted.com/FHIRProxy/api/FHIR/R4/",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "535 E 70th St",
            "city": "New York",
            "state": "NY",
            "country_code": "US",
            "postal_code": "100214823",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0927.epichosted.com/FHIRProxy/api/FHIR/DSTU2",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "535 E 70th St",
            "city": "New York",
            "state": "NY",
            "country_code": "US",
            "postal_code": "100214823",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.