WILLEM XU MD
NPI 1013570480
Anesthesiology in Santa Ana, CA

Q: What is Willem Xu's NPI number?

The NPI number for Willem Xu is 1013570480. It was assigned to this individual provider in the NPPES registry on April 20, 2019.

Q: What is Willem Xu's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Willem Xu was last updated on June 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 20, 2019PECOS EnrolledAccepts Medicare Assignment

400 N TUSTIN AVE, SANTA ANA, CA 92705(714) 619-5391 Get Directions Write a Review

NPPES record last updated: June 17, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 17, 2024, Apr 20, 2019 (2 updates tracked since 2019).

On this page

About Willem Xu Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLEM XU MD (NPI 1013570480) is an individual anesthesiology provider in Santa Ana, California, licensed in California (A187501) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1013570480

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameWILLEM XUCredential: MD

Location Address400 N TUSTIN AVESanta Ana, CA 92705-3813

Mailing Address400 N Tustin AveSanta Ana, CA 92705-3813

Phone(714) 619-5391

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateApril 20, 2019

Last NPPES UpdateJune 17, 20242 updates tracked since enumeration

NPPES CertifiedJune 17, 2024

✔ NPI 1013570480 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A187501

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

400 N TUSTIN AVE, Santa Ana, CA 92705

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Willem Xu Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961948617

PECOS Enrollment IDI20240718002307

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DUSTIN G MORRIS MD

Anesthesiology

400 N TUSTIN AVE
SANTA ANA, CA 92705

Orange County (714) 619-5391

DR. LAWRENCE ONG M.D., M.ENG.

Anesthesiology

400 N TUSTIN AVE, SUITE 400
SANTA ANA, CA 92705

Orange County (800) 888-2186

JENNIFER FERRUFINO

Technician, Health Information (Assistant Record Technician)

400 N TUSTIN AVE
SANTA ANA, CA 92705

Orange County (714) 617-4886

JASON KIM DO

Anesthesiology

400 N TUSTIN AVE
SANTA ANA, CA 92705

Orange County (714) 619-5383

DR. JENNIFER E ENGSTROM MD

Anesthesiology

400 N TUSTIN AVE, SUITE 400
SANTA ANA, CA 92705

Orange County (949) 417-1825

EXECUTIVE HAND THERAPY, INC.

Clinic/Center (Physical Therapy)

400 N TUSTIN AVE, SUITE 401
SANTA ANA, CA 92705

Orange County (714) 564-8210

PAMELA JEAN JACOBSON LAC

Acupuncturist

400 N TUSTIN AVE, SUITE 380
SANTA ANA, CA 92705

Orange County (714) 730-2233

THE HEALING SANCTUARY SPA, INC

Acupuncturist

400 N TUSTIN AVE, SUITE 380
SANTA ANA, CA 92705

Orange County (714) 730-2233

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Willem Xu's NPI number?

The NPI number for Willem Xu is 1013570480. It was assigned to this individual provider in the NPPES registry on April 20, 2019.

Where is Willem Xu located?

Willem Xu practices at 400 N Tustin Ave, Santa Ana, CA 92705. The listed phone number is (714) 619-5391.

What is Willem Xu's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Willem Xu enrolled in Medicare?

Yes. Willem Xu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Willem Xu was last updated on June 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.