NPIMap

Individual provider Active NPI

Alexandra Michele Kuizenga, PA-C

  • Physician Assistant
  • Stanford, CA
National Provider Identifier
1659846483
Registry record updated Dec 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
56103 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Oct 8, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 19, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Physician Assistant 363AS0400X 56103 CA
Physician Assistant 363A00000X 56103 CA Primary

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Other practice location 1

4000 Dublin Blvd Ste 100
Dublin, CA 94568-3122
Phone (925) 556-7320

Other practice location 2

1205 E North St
Manteca, CA 95336-4932
Phone (209) 823-3111

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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
I20181206003355 CA Practitioner - Physician Assistant 2860736576 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

5555 W Las Positas Blvd
Pleasanton, CA 94588-4000
Phone (925) 847-3000

5725 W Las Positas Blvd
Pleasanton, CA 94588-4007

5800 Hollis St
Emeryville, CA 94608-2016
Phone (510) 806-2100

6121 Hollis St
Emeryville, CA 94608-2077

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
96.69 of 100Reported as group
Quality
90
Improvement activities
40
Cost
78.43

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
56103CAMDSurgical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California CurrentSince Jun 1, 2022 Accepting new patients
Stanford Health Care CurrentSince Dec 5, 2024 Accepting new patients
Golden State Orthopedics & Spine CurrentSince Jan 1, 2022 Accepting new patients
Golden State Orthopedics & Spine CurrentSince Jan 1, 2022 Accepting new patients
Stanford Health Care CurrentSince Dec 5, 2024 Accepting new patients
Golden State Orthopedics & Spine Past Accepting new patients
Golden State Orthopedics & Spine Past Accepting new patients
Doctors Hospital of Manteca, Inc. Past Accepting new patients

Locations

2755 Herndon Ave
Clovis, CA 93611
Phone (559) 323-4000

4000 Dublin Blvd
Ste 100
Dublin, CA 94568
Phone (800) 943-8099

1133 E Stanley Blvd
Ste 111
Livermore, CA 94550
Phone (925) 371-5377

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

3315 Broadway
Oakland, CA 94611
Phone (510) 486-2300

3315 Broadway
Fl 1
Oakland, CA 94611
Phone (510) 486-2300

5201 Norris Canyon Rd
Ste 300
San Ramon, CA 94583
Phone (925) 866-8720

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

2405 Shadelands Dr
Walnut Creek, CA 94598
Phone (615) 930-0820

Interoperability endpoints

  • Direct secure messaging: alexandra.kuizenga.p1@direct.muirortho.nextgenshare.com

Organizations & group practices 10

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 9

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": "1538956800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766102400000",
    "number": "1659846483",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4000 Dublin Blvd Ste 100",
            "address_purpose": "LOCATION",
            "city": "Dublin",
            "state": "CA",
            "postal_code": "945683122",
            "country_code": "US",
            "telephone_number": "925-556-7320",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1205 E North St",
            "address_purpose": "LOCATION",
            "city": "Manteca",
            "state": "CA",
            "postal_code": "953364932",
            "country_code": "US",
            "telephone_number": "209-823-3111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KUIZENGA",
        "first_name": "ALEXANDRA",
        "middle_name": "MICHELE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-10-08",
        "last_updated": "2025-12-19",
        "certification_date": "2025-12-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "CA",
            "license": "56103",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "56103",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.