Individual provider Active NPI

Jessica Ashley Jeanene Williams, MD

  • Pediatric Nephrology Physician
  • Palo Alto, CA
National Provider Identifier
1114424710
Registry record updated Sep 8, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Nephrology PhysicianTaxonomy code 2080P0210X
License
A174461 Issued in CA
Practice address
725 Welch Rd
Palo Alto, CA 94304-1601
Phone
(650) 497-8000
NPI assigned
Apr 10, 2018
Last updated
Sep 8, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 8, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X A174461 CA
Pediatric Nephrology Physician 2080P0210X A174461 CA Primary

Addresses

Primary practice location

725 Welch Rd
Palo Alto, CA 94304-1601

Mailing address

725 Welch Rd
Palo Alto, CA 94304-1601
Phone (650) 497-8000

Other practice location 1

701 Lawrence Expy
Santa Clara, CA 95051-5173
Phone (408) 554-9810

Electronic endpoints 1

TypeEndpointUseAffiliation
SOAP URL https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20220420001420 CA Practitioner - Pediatric MedicinePractitioner - Other (Physician) 7719398296 Reassigns benefits to 6 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A174461CAMDPediatric Nephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Permanente Medical Group Inc Pediatrics Current Accepting new patients
UCSF Medical Group Business Services CurrentSince Apr 12, 2022 Accepting new patients
UCSF Pediatrics Associates Pediatrics CurrentSince Apr 12, 2022 Accepting new patients
LPCH Medical Group Div of Lucile Pediatrics CurrentSince Mar 14, 2025 Accepting new patients
Stanford Health Care Pediatrics CurrentSince Mar 14, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Apr 12, 2022 Accepting new patients
Permanente Medical Group, Inc CurrentSince Nov 11, 2024 Accepting new patients
University of California San Francisco CurrentSince Apr 12, 2022 Accepting new patients
Stanford Health Care CurrentSince Mar 14, 2025 Accepting new patients
Permanente Medical Group Inc Pediatrics CurrentSince Nov 11, 2024 Accepting new patients
University of California San Francisco Pediatrics CurrentSince Apr 12, 2022 Accepting new patients

Locations

750 Auburn Ravine Rd
Auburn, CA 95603
Phone (530) 823-6131

4753 W Shaw Ave
Ste 101
Fresno, CA 93722
Phone (559) 277-8738

900 N Douty St
Hanford, CA 93230
Phone (559) 587-9014

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

770 Welch Rd
Palo Alto, CA 94304
Phone (650) 498-4069

101 Monroe St
Petaluma, CA 94954
Phone (707) 763-4109

1150 Veterans Blvd
Redwood City, CA 94063
Phone (650) 299-2015

901 Nevin Ave
Richmond, CA 94801
Phone (510) 307-1500

930 W Main St
Ripon, CA 95366
Phone (209) 599-4221

501 J St
Sacramento, CA 95814
Phone (916) 497-3000

2200 Ofarrell St
San Francisco, CA 94115
Phone (415) 202-2000

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

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

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

550 16th St
Fl 4
San Francisco, CA 94143
Phone (415) 476-5001

710 Lawrence Expy
Santa Clara, CA 95051
Phone (408) 236-6400

5615 Scotts Valley Dr
Scotts Valley, CA 95066
Phone (831) 430-2700

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

7373 West Ln
Stockton, CA 95210
Phone (209) 476-2000

975 Sereno Dr
Vallejo, CA 94589
Phone (707) 651-1000

320 N Crawford St
Willows, CA 95988
Phone (530) 934-2834

Organizations & group practices 11

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.

NPI Registry JSON

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

{
    "created_epoch": "1523318400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757289600000",
    "number": "1114424710",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "701 Lawrence Expy",
            "address_purpose": "LOCATION",
            "city": "Santa Clara",
            "state": "CA",
            "postal_code": "950515173",
            "country_code": "US",
            "telephone_number": "408-554-9810",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "JESSICA ASHLEY",
        "middle_name": "JEANENE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-04-10",
        "last_updated": "2025-09-08",
        "certification_date": "2025-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A174461",
            "primary": false
        },
        {
            "code": "2080P0210X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Nephrology",
            "state": "CA",
            "license": "A174461",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "701 Lawrence Expy",
            "city": "Santa Clara",
            "state": "CA",
            "country_code": "US",
            "postal_code": "950515173",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.