Katherine Mackenzie Williams, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

029102 Issued in NY

Practice address

1790 Broadway Ste 1802
New York, NY 10019-1471

Phone

(888) 663-6331

Fax

(415) 252-7176

NPI assigned

Nov 22, 2022

Last updated

Sep 15, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Mercy College, 2022

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

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.

• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152
  Medicare reassignment NPD (past)
• One Medical of Ny, P.C.

  dba One Medical Group

  • Family Medicine Physician
  • New York, NY
  • NPI 1861709487
  Medicare reassignment
• Montefiore Medical Center

  dba Montefiore Community Pharmacy @ CHAM

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Montefiore Medical Center

  • Family Medicine Physician
  • New York, NY
  • NPI 1760288278
  NPD
• Family Medicine Nyc P.C.

  • Primary Care Clinic/Center
  • New York, NY
  • NPI 1043597263
  NPD (past)

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

{
    "created_epoch": "1669075200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757894400000",
    "number": "1578272134",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 EMBARCADERO CTR STE 1900",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941113723",
            "telephone_number": "888-663-6331",
            "fax_number": "415-252-7176"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1790 BROADWAY STE 1802",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100191471",
            "telephone_number": "888-663-6331",
            "fax_number": "415-252-7176"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "KATHERINE",
        "middle_name": "MACKENZIE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-11-22",
        "last_updated": "2025-09-15",
        "certification_date": "2025-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NY",
            "license": "029102",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNIVERSITY OF THE STATE OF NY PHYSICIAN ASSISTANT LICENSE NUMBER",
            "identifier": "029102",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Judith E Williams, LCSW
• Julian Di'Jon Williams
• Katharine Kennedy Williams, PHD
• Katherine Williams, PA-C
• Katherine Leigh Williams, DPT
• Kayla B Williams
• Kaywana Williams
• Kelly Williams, PA-C
• Kenika Williams
• Kerah Williams, M.D.

• Physician Assistant in New York, NY
• Providers in New York, NY by specialty
• Physician Assistant in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 15, 2025; 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.

Verify at the official NPI Registry.