William W Wang, MD - Medicare Internal Medicine in Santa Clara, CA

William W Wang, MD is a medicare enrolled "Hospitalist" physician in Santa Clara, California. He went to Jefferson Medical College Of Thomas Jefferson University and graduated in 1995 and has 29 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 900 Kiely Blvd, Santa Clara, California. You can reach out to his office (for appointments etc.) via phone at (408) 236-6400.

William W Wang is licensed to practice in California (license number A56372) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1487730313.

Contact Information

William W Wang, MD
900 Kiely Blvd,
Santa Clara, CA 95051-5329
(408) 236-6400
Not Available

Map and Direction




Physician's Profile

Full NameWilliam W Wang
GenderMale
SpecialityInternal Medicine
Experience29 Years
Location900 Kiely Blvd, Santa Clara, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William W Wang attended and graduated from Jefferson Medical College Of Thomas Jefferson University in 1995
  NPI Data:
  • NPI Number: 1487730313
  • Provider Enumeration Date: 10/31/2006
  • Last Update Date: 12/10/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 6800075235
  • Enrollment ID: I20110131001009

Medical Identifiers

Medical identifiers for William W Wang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487730313NPI-NPPES
00A563720MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist A56372 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital-santa ClaraSanta clara, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102257800

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. William W Wang 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. William W Wang 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
William W Wang, MD
1800 Harrison St Fl 7,
Oakland, CA 94612-3466

Ph: (510) 625-6262
William W Wang, MD
900 Kiely Blvd,
Santa Clara, CA 95051-5329

Ph: (408) 236-6400

Reviews and Comments


Hospitalist Doctors in Santa Clara, CA

David Clarke, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 900 Kiely Blvd, Santa Clara, CA 95051
Phone: 408-236-6400    
Joseph S. Chou, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 900 Kiely Blvd, Santa Clara, CA 95051
Phone: 408-236-6400    
Farhana Ahmed, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 710 Lawrence Expy, Santa Clara, CA 95051
Phone: 408-851-7222    
Gurpreet K. Ahluwalia, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 900 Kiely Blvd, Santa Clara, CA 95051
Phone: 408-236-6400    
Smita V. Gavaskar, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 900 Kiely Blvd, Santa Clara, CA 95051
Phone: 408-236-6400    
Anna Park, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 700 Lawrence Expy, Hospital Medicine 3rd Floor, Santa Clara, CA 95051
Phone: 408-851-7679    
Farida T. Madraswala, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 900 Kiely Blvd, Santa Clara, CA 95051
Phone: 408-236-6400    

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.