Willem Xu, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

A187501 Issued in CA

Practice address

400 N Tustin Ave
Santa Ana, CA 92705-3813

Phone

(714) 619-5391

NPI assigned

Apr 20, 2019

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

Anesthesiology

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Allied Anesthesia Medical Group IncGroup PAC ID 6103728407, 185 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• San Antonio Regional Hospital Hospital, Upland, CA, CCN 050099
• Pomona Valley Hospital Medical Center Hospital, Pomona, CA, CCN 050231
• Providence St Mary Medical Center Hospital, Apple Valley, CA, CCN 050300

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wxu303627@direct.llu.edu

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.

• Allied Anesthesia Medical Group Inc

  • Anesthesiology Physician
  • Orange, CA
  • NPI 1346267267
  Medicare reassignment Care Compare group NPD

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

• Pomona Valley Hospital Medical Center

  • General Acute Care Hospital
  • Pomona, CA
  • NPI 1407813660
  Care Compare affiliation
• San Antonio Regional Hospital

  • General Acute Care Hospital
  • Upland, CA
  • NPI 1780681189
  Care Compare affiliation
• St. Mary Medical Center

  • Advanced Practice Midwife
  • Apple Valley, CA
  • NPI 1043406440

  Hospital

  Care Compare affiliation
• St. Mary Medical Center

  • General Acute Care Hospital
  • Apple Valley, CA
  • NPI 1669456299
  Care Compare affiliation
• St. Mary Medical Center

  • General Acute Care Hospital
  • Apple Valley, CA
  • NPI 1710109186
  Care Compare affiliation

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

{
    "created_epoch": "1555718400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1718582400000",
    "number": "1013570480",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 N TUSTIN AVE",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927053813"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 N TUSTIN AVE",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927053813",
            "telephone_number": "714-619-5391"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "XU",
        "first_name": "WILLEM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-20",
        "last_updated": "2024-06-17",
        "certification_date": "2024-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A187501",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Yiting Xie
• Xinming Fu, MD, Inc
• Nasouwa Xiong
• Leslie Arleen Xitumul
• Cong Xu, RN
• Ying Xue
• Vazgen Edward Yaghoubian, PHD
• Angela Yakscoe, BCBA
• Ethan Arda Yalvac, M.D.
• Vuthy Yam

• Anesthesiology Physician in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Anesthesiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 2024; 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.