Dr John Chao-chung Wu, MD - Medicare Emergency Medicine in Westminster, CA

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Dr John Chao-chung Wu, MD is a medicare enrolled "Emergency Medicine" physician in Westminster, California. His current practice location is 200 Hospital Cir, Westminster, California. You can reach out to his office (for appointments etc.) via phone at (818) 340-9988.

Dr John Chao-chung Wu is licensed to practice in California (license number A93845) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1295804201.

Contact Information

Dr John Chao-chung Wu, MD
200 Hospital Cir,
Westminster, CA 92683-3910
(818) 340-9988
(818) 587-2493

Map and Direction




Physician's Profile

Full NameDr John Chao-chung Wu
GenderMale
SpecialityEmergency Medicine
Location200 Hospital Cir, Westminster, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1295804201
  • Provider Enumeration Date: 11/06/2006
  • Last Update Date: 03/15/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6103826532
  • Enrollment ID: I20070108000469

Medical Identifiers

Medical identifiers for Dr John Chao-chung Wu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295804201NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 2614 (Minnesota)Secondary
207P00000XEmergency Medicine 318967 (New York)Secondary
207P00000XEmergency Medicine A93845 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr John Chao-chung Wu allows following entities to bill medicare on his behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458
Entity NameFranciscan Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366539421
PECOS PAC ID: 0547173866
Enrollment ID: O20230421002260

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. Dr John Chao-chung Wu is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr John Chao-chung Wu, MD
Po Box 4419,
Woodland Hills, CA 91365-4419

Ph: (818) 340-9988		Dr John Chao-chung Wu, MD
200 Hospital Cir,
Westminster, CA 92683-3910

Ph: (818) 340-9988

Reviews and Comments


Emergency Medicine Doctors in Westminster, CA

Dr. Jamie Barton Lewis, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 15464 Goldenwest St, Westminster, CA 92683
Phone: 714-891-9008    Fax: 714-893-2239
Dr. Eduardo D. Lam, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 200 Hospital Cir, Westminster, CA 92683
Phone: 818-340-9988    Fax: 818-587-2493
Alan Conway Sonne, M.D
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 15464 Goldenwest St, Westminster, CA 92683
Phone: 714-891-9008    
Perry Le Dinh, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 14281 Beach Blvd, Westminster, CA 92683
Phone: 718-893-8800    
Dr. Travis Hamilton Parker, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 200 Hospital Cir, Westminster, CA 92683
Phone: 818-340-9988    Fax: 818-587-2493
Andrew S Givner, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 Hospital Cir, Westminster, CA 92683
Phone: 714-893-4541    Fax: 818-587-2493

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.