Dr Christopher Wan, MD - Medicare Emergency Medicine in Hayward, CA

Dr Christopher Wan, MD is a medicare enrolled "Emergency Medicine" physician in Hayward, California. His current practice location is 27400 Hesperian Blvd, Kaiser Hayward Emergency Dept., Hayward, California. You can reach out to his office (for appointments etc.) via phone at (510) 784-4521.

Dr Christopher Wan is licensed to practice in Illinois (license number 036-108258) 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 1245346626.

Contact Information

Dr Christopher Wan, MD
27400 Hesperian Blvd, Kaiser Hayward Emergency Dept.,
Hayward, CA 94545-4235
(510) 784-4521
Not Available

Map and Direction




Physician's Profile

Full NameDr Christopher Wan
GenderMale
SpecialityEmergency Medicine
Location27400 Hesperian Blvd, Hayward, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1245346626
  • Provider Enumeration Date: 08/21/2006
  • Last Update Date: 12/09/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8022098904
  • Enrollment ID: I20051011000223

Medical Identifiers

Medical identifiers for Dr Christopher Wan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245346626NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 036-108258 (Illinois)Primary
207PE0004XEmergency Medicine - Emergency Medical Services A88069 (California)Secondary

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 Christopher Wan allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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 Christopher Wan 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 Christopher Wan, MD
27400 Hesperian Blvd, Kaiser Hayward Emergency Dept.,
Hayward, CA 94545-4235

Ph: (650) 248-5751
Dr Christopher Wan, MD
27400 Hesperian Blvd, Kaiser Hayward Emergency Dept.,
Hayward, CA 94545-4235

Ph: (510) 784-4521

Reviews and Comments


Emergency Medicine Doctors in Hayward, CA

Dr. Aaron Pessl, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4525    
Rameshchandra Naranbhai Patel, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4000    
Sarah Lynn Welsh, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 27200 Calaroga Ave, Hayward, CA 94545
Phone: 510-264-4026    
Dr. Shao-i Huang, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 27200 Calaroga Ave, Hayward, CA 94545
Phone: 510-264-4000    
Charles Getz, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4000    
Eric Anderson, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4000    

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).

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