NPIMap

Individual provider Active NPI

Ling Xu, M.D.

  • Internal Medicine Physician
  • Castro Valley, CA
National Provider Identifier
1073684429
Registry record updated Apr 24, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A69273 Issued in CA
Practice address
20642 John Dr
Castro Valley, CA 94546-5103
Phone
(510) 785-5000
Fax
(510) 785-5295
NPI assigned
Nov 9, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 24, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A69273 CA Primary

Addresses

Primary practice location

20642 John Dr
Castro Valley, CA 94546-5103

Mailing address

20642 John Dr
Castro Valley, CA 94546-5103
Phone (510) 785-5000

Other practice location 1

20130 Lake Chabot Rd
Suite #307
Castro Valley, CA 94546-5340
Phone (510) 690-9360

Other practice location 2

9615 Crosby Dr
Pleasanton, CA 94588-4613
Phone (510) 690-9360

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040325000243 CA Practitioner - Internal Medicine 1355232620 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 1983
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University Healthcare AllianceGroup PAC ID 6305748799, 334 clinicians

Practice addresses (Care Compare)

20126 Stanton Ave
Suite 201
Castro Valley, CA 94546-5270
Phone (510) 581-2559

Hospital & facility affiliations

  • BLC Homehealth Inc Home health agency, San Leandro, CA, CCN 053137
  • Sutter Care at Home Home health agency, Concord, CA, CCN 057004
  • Golden Pacific Home Health, Inc Home health agency, Alameda, CA, CCN 059441
  • A1 Pro Home Health Inc. Home health agency, San Leandro, CA, CCN 757933
  • Stanford Health Care Tri-Valley Hospital, Pleasanton, CA, CCN 050283
  • Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
  • Stanford Health Care Hospital, Stanford, CA, CCN 050441

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A69273CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care Internal Medicine CurrentSince Oct 1, 2020 Accepting new patients
Stanford Health Care CurrentSince Oct 1, 2020 Accepting new patients
University Healthcare Alliance Internal Medicine CurrentSince Oct 1, 2020 Accepting new patients
Stanford Health Care Internal Medicine Current Accepting new patients
University Healthcare Alliance PastSince Nov 9, 2000 Accepting new patients
Eden Medical Center/San Leandro Hospital Campus Past Accepting new patients
Affinity Medical Group Past Accepting new patients

Locations

50 E Hamilton Ave
Ste 280
Campbell, CA 95008
Phone (408) 227-2646

20642 John Dr
Castro Valley, CA 94546
Phone (510) 581-2559

20126 Stanton Ave
Ste 201
Castro Valley, CA 94546
Phone (510) 237-6320

1300 Crane St
Menlo Park, CA 94025
Phone (510) 785-5000

4725 1st St
Ste 100
Pleasanton, CA 94566
Phone (925) 462-7060

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

Organizations & group practices 7

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.

Hospital & facility affiliations 13

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

View all 13

NPI Registry JSON

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

{
    "created_epoch": "1163030400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1713916800000",
    "number": "1073684429",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20642 JOHN DR",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465103",
            "telephone_number": "510-785-5000",
            "fax_number": "510-785-5295"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20642 JOHN DR",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465103",
            "telephone_number": "510-785-5000",
            "fax_number": "510-785-5295"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "20130 Lake Chabot Rd",
            "address_2": "Suite #307",
            "address_purpose": "LOCATION",
            "city": "Castro Valley",
            "state": "CA",
            "postal_code": "945465340",
            "country_code": "US",
            "telephone_number": "510-690-9360",
            "fax_number": "510-690-0346",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9615 Crosby Dr",
            "address_purpose": "LOCATION",
            "city": "Pleasanton",
            "state": "CA",
            "postal_code": "945884613",
            "country_code": "US",
            "telephone_number": "510-690-9360",
            "fax_number": "510-690-0346",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "XU",
        "first_name": "LING",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-09",
        "last_updated": "2024-04-24",
        "certification_date": "2024-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A69273",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Castro Valley, CA

Sources for this page

Verify at the official NPI Registry.