Elyssa Feinberg, MD Trauma and Acute Care Surgery

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

Legal business name

ELYSSA FEINBERG, MD TRAUMA AND ACUTE CARE SURGERY

Practice address

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

Phone

(510) 538-5500

NPI assigned

Aug 20, 2026

Organization subpart

No

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

Authorized official

Name

Dr. Elyssa J Feinberg, MD

Title

President

Phone

(510) 538-5500

Specialties & licenses 1

Addresses

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

{
    "created_epoch": "1787184000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1787184000000",
    "number": "1366358293",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "683 PILGRIM DR",
            "city": "FOSTER CITY",
            "state": "CA",
            "postal_code": "944041729",
            "telephone_number": "650-567-9495"
        },
        {
            "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"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ELYSSA FEINBERG, MD TRAUMA AND ACUTE CARE SURGERY",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-08-20",
        "last_updated": "2026-08-20",
        "certification_date": "2026-08-20",
        "status": "A",
        "authorized_official_last_name": "FEINBERG",
        "authorized_official_first_name": "ELYSSA",
        "authorized_official_middle_name": "J",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "510-538-5500",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Surgery",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• 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 Aug 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.