Willem Xu, MD - Anesthesiology in Santa Ana, CA

Willem Xu, MD is a Anesthesiology physician based in Santa Ana, California. Willem Xu is licensed to practice in California (license number A187501) and his current practice location is 400 N Tustin Ave, Santa Ana, California. He can be reached at his office (for appointments etc.) via phone at (714) 619-5391.

NPI number for Willem Xu is 1013570480 and his current mailing address is 400 N Tustin Ave, Santa Ana, California. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1013570480.

Contact Information

Willem Xu, MD
400 N Tustin Ave,
Santa Ana, CA 92705-3813
(714) 619-5391
Not Available

Map and Direction




Physician's Profile

Full NameWillem Xu
GenderMale
SpecialityAnesthesiology
Location400 N Tustin Ave, Santa Ana, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1013570480
  • Provider Enumeration Date: 04/20/2019
  • Last Update Date: 06/17/2024

Medical Identifiers

Medical identifiers for Willem Xu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013570480NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology A187501 (California)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Willem Xu is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Willem Xu, MD
400 N Tustin Ave,
Santa Ana, CA 92705-3813

Ph: () -
Willem Xu, MD
400 N Tustin Ave,
Santa Ana, CA 92705-3813

Ph: (714) 619-5391

Reviews and Comments


Anesthesiology Doctors in Santa Ana, CA

Vedavathy Vallurupalli, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 400 N Tustin Ave Ste 400, Santa Ana, CA 92705
Phone: 714-619-5383    
Ji-guang Jin, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1001 N Tustin Ave, Santa Ana, CA 92705
Phone: 714-953-3500    
Tsung Ling Tsou, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1001 N Tustin Ave, Santa Ana, CA 92705
Phone: 714-953-3500    
Dr. Jim Nguyen, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 2514 S Maddock St, Santa Ana, CA 92704
Phone: 714-679-0852    
Angela Azar, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1001 N Tustin Ave, Santa Ana, CA 92705
Phone: 714-965-6611    
Michael Howard Lowenstein, MD
Anesthesiology
Medicare: May Accept Medicare Assignments
Practice Location: 1901 E. Fourth Street, Suite 210, Santa Ana, CA 92705
Phone: 714-542-5999    Fax: 714-475-6991

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.