Vivian Tien, MD - Medicare Infectious Disease in Stanford, CA

Vivian Tien, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Stanford, California. She went to Washington University School Of Medicine and graduated in 2015 and has 9 years of diverse experience with area of expertise as Infectious Disease. She is a member of the group practice Permanente Medical Group Inc and her current practice location is 300 Pasteur Dr, Stanford, California. You can reach out to her office (for appointments etc.) via phone at (650) 498-3333.

Vivian Tien is licensed to practice in California (license number A145002) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1588058184.

Contact Information

Vivian Tien, MD
300 Pasteur Dr,
Stanford, CA 94305
(650) 498-3333
Not Available

Map and Direction




Physician's Profile

Full NameVivian Tien
GenderFemale
SpecialityInfectious Disease
Experience9 Years
Location300 Pasteur Dr, Stanford, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Vivian Tien attended and graduated from Washington University School Of Medicine in 2015
  NPI Data:
  • NPI Number: 1588058184
  • Provider Enumeration Date: 03/23/2015
  • Last Update Date: 02/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1759659105
  • Enrollment ID: I20210208001313

Medical Identifiers

Medical identifiers for Vivian Tien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588058184NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease A145002 (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 Inc89219102258376

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. Vivian Tien allows following entities to bill medicare on her 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. Vivian Tien 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
Vivian Tien, MD
710 Lawrence Expy,
Santa Clara, CA 95051-5173

Ph: (650) 725-8338
Vivian Tien, MD
300 Pasteur Dr,
Stanford, CA 94305

Ph: (650) 498-3333

Reviews and Comments


Internal Medicine Doctors in Stanford, CA

Prista Charuworn, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 300 Pasteur Dr, Alway Build M211, Mc 5187, Stanford, CA 94305
Phone: 650-723-6661    
Yu Kuang Lai, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Andrea Lorenze, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Drive, Lane 154, Stanford, CA 94305
Phone: 650-723-6661    Fax: 650-498-6205
Audra Horomanski, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    Fax: 650-498-6205
Meghan Brady Marmor, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Lauren Michelle Ulsh, MD
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Ann M Chen, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, A149, Mc5202, Stanford, CA 94305
Phone: 650-725-3376    Fax: 650-723-8305

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.