Ann Kuhlman Williamson, APRN

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

21769 Issued in CA

Practice address

757 Westwood PLZ
Los Angeles, CA 90095-8358

Phone

(310) 562-4713

NPI assigned

Jun 22, 2017

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

Medicare fee-for-service enrollment

Enrolled in CA

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

Nurse Practitioner

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

The Regents of the University of CaliforniaGroup PAC ID 7911970736, 38 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ronald Reagan UCLA Medical Center Hospital, Los Angeles, CA, CCN 050262

Merit-based Incentive Payment System (MIPS)

Final score

92.27 of 100Reported as group

Quality

60.66

Promoting interoperability

100

Improvement activities

40

Cost

80.25

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

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 and National Provider Directory roles.

• The Regents of the University of California

  • Transplant Surgery Physician
  • Los Angeles, CA
  • NPI 1902862170
  Medicare reassignment Care Compare group NPD
• Sani and Eshaghian M.D., Inc.

  • Pulmonary Disease Physician
  • Northridge, CA
  • NPI 1356897573
  Medicare reassignment NPD
• UCLA Associated General Surgeons

  • Surgery Physician
  • Los Angeles, CA
  • NPI 1730147372
  Medicare reassignment NPD
• Prohealth Partners a Medical Group

  • Hospitalist Physician
  • Torrance, CA
  • NPI 1649539206
  NPD
• Prohealth Partners, a Medical Group

  • Internal Medicine Physician
  • Lakewood, CA
  • NPI 1003949975
  NPD
• Prohealth Partners, a Medical Group, Inc.

  • Internal Medicine Physician
  • Pico Rivera, CA
  • NPI 1912899394
  NPD
• UCLA Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1043427248
  NPD (past)

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

• Regents Univ of Calif Los Angeles

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1902803315
  Care Compare affiliation

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

{
    "created_epoch": "1498089600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771545600000",
    "number": "1801316765",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "757 WESTWOOD PLZ",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900958358"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "757 WESTWOOD PLZ",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900958358",
            "telephone_number": "310-562-4713"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "ANN",
        "middle_name": "KUHLMAN",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-06-22",
        "last_updated": "2026-02-20",
        "certification_date": "2026-02-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "21769",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vernon Brian Williams, MD
• Wilson Williams
• Wynnona D Williams, RN-BSN-MSN-FNP
• Yolanda Williams
• Zachary J Williams, MD, PHD
• Bennett Williamson, PHD
• Denise D Williamson, M.D.
• Elizabeth Estelle Williamson, MA, BCBA
• Eric Williamson, MD
• Matthew Williamson

• Nurse Practitioner in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 20, 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.
• 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.