Katherine Y Wu, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

A148302 Issued in CA

Practice address

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122

Phone

(925) 947-5350

NPI assigned

May 15, 2014

Last updated

Oct 31, 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 3

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kwu552690@hisp.ehr.sutterhealth.org
• Direct secure messaging: kwu60429@direct-ucsfmedicalcenter.org

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.

• LPCH Medical Group Div of Lucile

  dba Lucile Salter Packard Children's Hospital at Stanford

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1417907940

  Pediatrics

  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  Medicare reassignment NPD
• UCSF Pediatrics Associates

  dba UCSF Medical Center

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1376614016
  Medicare reassignment NPD
• University of California San Francisco

  dba UCSF Pediatrics Group

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• UCSF Medical Group Business Services

  dba UCSF Orthotic and Prosthetic Center - Gateway Medical Building

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• University of California San Francisco

  dba UCSF Medical Center

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1164512851

  Pediatrics

  NPD
• University of California San Francisco

  dba UCSF Outpatient Pharmacy at Parnassus

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD

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

{
    "created_epoch": "1400112000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761868800000",
    "number": "1518378256",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1601 YGNACIO VALLEY RD",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945983122",
            "telephone_number": "925-947-5350"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1601 YGNACIO VALLEY RD",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945983122",
            "telephone_number": "925-947-5350"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3401 Civic Center Blvd",
            "address_2": "9NW, Room 55",
            "address_purpose": "LOCATION",
            "city": "Philadelphia",
            "state": "PA",
            "postal_code": "191044319",
            "country_code": "US",
            "telephone_number": "215-590-1220",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "747 52nd St",
            "address_purpose": "LOCATION",
            "city": "Oakland",
            "state": "CA",
            "postal_code": "946091809",
            "country_code": "US",
            "telephone_number": "510-428-3276",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "725 Welch Rd",
            "address_purpose": "LOCATION",
            "city": "Palo Alto",
            "state": "CA",
            "postal_code": "943041601",
            "country_code": "US",
            "telephone_number": "650-497-8000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WU",
        "first_name": "KATHERINE",
        "middle_name": "Y",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-05-15",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A148302",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "PA",
            "license": "MT206193",
            "primary": false
        },
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "CA",
            "license": "A148302",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anna Wu, OD
• Dan Wu, DDS
• David W Wu, MD
• Harrison Wu
• Henry Cheng-Ju Wu, M.D., PH.D.
• Sway Wu, MD
• Christopher Warwick Wulff, MD
• Sonya Wyrobek, RN, CNM
• Richard Wyzykowski, M.D.
• Xia TCM Acupuncture Clinic Inc

• Pediatrics Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Pediatrics Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.