William Garin Wood, M.D., M.S.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

A119594 Issued in CA

Practice address

19845 Lake Chabot Rd Ste 200
Castro Valley, CA 94546-4055

Phone

(510) 538-5500

Fax

(510) 538-5505

NPI assigned

Jun 23, 2010

Sex

Male

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

General Surgery

Education

University of California, San Francisco School of Medicine, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Hospital & facility affiliations

• Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
• Stanford Health Care Tri-Valley Hospital, Pleasanton, CA, CCN 050283
• St Rose Hospital Hospital, Hayward, CA, CCN 050002

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Master of Science

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wwood381198@hisp.ehr.sutterhealth.org

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.

• William G Wood MD PC

  • Surgery Physician
  • Castro Valley, CA
  • NPI 1437004223
  Medicare reassignment NPD Authorized official
• Trauma and Acute Care Surgery Specialists Inc

  • Surgery Physician
  • Castro Valley, CA
  • NPI 1639930647
  Medicare reassignment NPD

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

• Hayward Sisters Hospital

  • General Acute Care Hospital
  • Hayward, CA
  • NPI 1942298153
  Care Compare affiliation
• Stanford Health Care Tri-Valley

  • General Acute Care Hospital
  • Pleasanton, CA
  • NPI 1144389941
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Castro Valley, CA
  • NPI 1063812907
  Care Compare affiliation

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

{
    "created_epoch": "1277251200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1821309022",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2601 BLANDING AVE",
            "address_2": "STE C #165",
            "city": "ALAMEDA",
            "state": "CA",
            "postal_code": "94501",
            "telephone_number": "510-538-5500",
            "fax_number": "510-538-5505"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19845 LAKE CHABOT RD STE 200",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945464055",
            "telephone_number": "510-538-5500",
            "fax_number": "510-538-5505"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WOOD",
        "first_name": "WILLIAM",
        "middle_name": "GARIN",
        "name_prefix": "Dr.",
        "credential": "M.D., M.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-06-23",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A119594",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• John Y Wong, O.D.
• Lawrence Wong, DMD
• Michelle Lai Wong, PA-C
• Terence Chuck Wong, D.D.S.
• Sandi T Woo, PA-C
• Lily Woodruff
• Bryan Worthy, D.C.
• L. Stephanie Wu, O.D.
• Annika Wurm
• Kun Xiao, MD MPH

• Surgery Physician in Castro Valley, CA
• Providers in Castro Valley, CA by specialty
• Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 12, 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.