Organization Active NPI

Grail, Inc.

  • Clinical Medical Laboratory
  • Menlo Park, CA
National Provider Identifier
1396350112
Registry record updated Dec 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
GRAIL, INC.
Practice address
1525 O'Brien Drive
Menlo Park, CA 94025
Phone
(833) 694-2553
Fax
(650) 999-9000
NPI assigned
Sep 9, 2020
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Dec 18, 2025

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

Authorized official

Name
Abram Barth
Title
General Counsel
Phone
(833) 694-2553

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X Primary

Addresses

Primary practice location

1525 O'Brien Drive
Menlo Park, CA 94025

Mailing address

1525 O'Brien Drive
Menlo Park, CA 94025
Phone (833) 694-2553

Other names 2

  • GRAIL, Inc. Former legal business name
  • GRAIL, LLC Former legal business name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20211019001277 CA Part B Supplier - Independent Clinical Laboratory 4587052899 Practice locations: Menlo Park, CA

Other NPIs with the same Medicare PAC ID 1

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

National Provider Directory

National Provider Directory

NPI Registry JSON

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

{
    "created_epoch": "1599609600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1766016000000",
    "number": "1396350112",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1525 O'BRIEN DRIVE",
            "city": "MENLO PARK",
            "state": "CA",
            "postal_code": "94025",
            "telephone_number": "833-694-2553",
            "fax_number": "650-999-9000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1525 O'BRIEN DRIVE",
            "city": "MENLO PARK",
            "state": "CA",
            "postal_code": "94025",
            "telephone_number": "833-694-2553",
            "fax_number": "650-999-9000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GRAIL, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2020-09-09",
        "last_updated": "2025-12-18",
        "certification_date": "2025-12-18",
        "status": "A",
        "authorized_official_last_name": "BARTH",
        "authorized_official_first_name": "ABRAM",
        "authorized_official_title_or_position": "GENERAL COUNSEL",
        "authorized_official_telephone_number": "833-694-2553"
    },
    "taxonomies": [
        {
            "code": "291U00000X",
            "taxonomy_group": "",
            "desc": "Clinical Medical Laboratory",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "GRAIL, Inc.",
            "code": "4",
            "type": "Former Legal Business Name"
        },
        {
            "organization_name": "GRAIL, Inc.",
            "code": "4",
            "type": "Former Legal Business Name"
        },
        {
            "organization_name": "GRAIL, LLC",
            "code": "4",
            "type": "Former Legal Business Name"
        }
    ]
}

Other providers in Menlo Park, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.