Dr William Thieu, MD, MS - Medicare Urology in Sacramento, CA

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Dr William Thieu, MD, MS is a medicare enrolled "Urology" physician in Sacramento, California. He went to University Of California, Davis School Of Medicine and graduated in 2014 and has 10 years of diverse experience with area of expertise as Urology. He is a member of the group practice County Of Santa Clara and his current practice location is 4860 Y St, Suite 2200, Sacramento, California. You can reach out to his office (for appointments etc.) via phone at (310) 876-2888.

Dr William Thieu is licensed to practice in California (license number 1) 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 1912273996.

Contact Information

Dr William Thieu, MD, MS
4860 Y St, Suite 2200,
Sacramento, CA 95817-2307
(310) 876-2888
Not Available

Map and Direction




Physician's Profile

Full NameDr William Thieu
GenderMale
SpecialityUrology
Experience10 Years
Location4860 Y St, Sacramento, 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:
  • Dr William Thieu attended and graduated from University Of California, Davis School Of Medicine in 2014
  NPI Data:
  • NPI Number: 1912273996
  • Provider Enumeration Date: 03/24/2012
  • Last Update Date: 11/19/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 7719318534
  • Enrollment ID: I20200512001490

Medical Identifiers

Medical identifiers for Dr William Thieu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912273996NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 1 (California)Secondary
208800000XUrology 1 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Santa Clara Valley Medical CenterSan jose, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Santa Clara1254244973722

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 William Thieu allows following entities to bill medicare on his behalf.
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659450955
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000757
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699885079
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000784
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Other Medical Care Group
Entity IdentifiersNPI Number: 1629301346
PECOS PAC ID: 1254244973
Enrollment ID: O20110318000170

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 William Thieu 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 William Thieu, MD, MS
4860 Y St, Suite 2200,
Sacramento, CA 95817-2307

Ph: () -		Dr William Thieu, MD, MS
4860 Y St, Suite 2200,
Sacramento, CA 95817-2307

Ph: (310) 876-2888

Reviews and Comments


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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.