Vivian Nguyen, MD - Medicare Hospitalist in Westminster, CA

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Vivian Nguyen, MD is a medicare enrolled "Internal Medicine" physician in Westminster, California. She graduated from medical school in 2004 and has 21 years of diverse experience with area of expertise as Hospitalist. She is a member of the group practice Desert Valley Medical Group Inc and her current practice location is 8419 Westminster Blvd, Westminster, California. You can reach out to her office (for appointments etc.) via phone at (714) 248-9558.

Vivian Nguyen is licensed to practice in California (license number A102097) 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 1689869570.

Contact Information

Vivian Nguyen, MD
8419 Westminster Blvd,
Westminster, CA 92683-3308
(714) 248-9558
(714) 248-9740

Map and Direction




Physician's Profile

Full NameVivian Nguyen
GenderFemale
SpecialityHospitalist
Experience21 Years
Location8419 Westminster Blvd, Westminster, 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 Nguyen graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1689869570
  • Provider Enumeration Date: 09/13/2007
  • Last Update Date: 05/18/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9739247057
  • Enrollment ID: I20081015000172

Medical Identifiers

Medical identifiers for Vivian Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689869570NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 249741 (New York)Secondary
207R00000XInternal Medicine TL001670 (Georgia)Secondary
207R00000XInternal Medicine A102097 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Desert Valley HospitalVictorville, CAHospital
Victor Valley Global Medical CenterVictorville, CAHospital
St Jude Medical CenterFullerton, CAHospital
Kindred Hospital Brea D/p SnfBrea, CANursing home

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 Nguyen allows following entities to bill medicare on her behalf.
Entity NameDesert Valley Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639117864
PECOS PAC ID: 4880595875
Enrollment ID: O20040113000803
Entity NameGalen Inpatient Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689320459
PECOS PAC ID: 3678464633
Enrollment ID: O20040322000680
Entity NameHospitalist Medicine Physicians Of California Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184663965
PECOS PAC ID: 8426062027
Enrollment ID: O20060202000956
Entity NameKansal Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043510183
PECOS PAC ID: 6406089739
Enrollment ID: O20140512001295
Entity NameInpatient Specialists Of California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952792475
PECOS PAC ID: 3476864448
Enrollment ID: O20150617000915
Entity NameHospitalist Medicine Physicians Of California - Apple Valley, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447738075
PECOS PAC ID: 2567715972
Enrollment ID: O20181101002570
Entity NameVivian Nguyen Md Professional Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033878384
PECOS PAC ID: 6709270523
Enrollment ID: O20220221002329

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 Nguyen 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 Nguyen, MD
8419 Westminster Blvd,
Westminster, CA 92683-3308

Ph: (714) 248-9558		Vivian Nguyen, MD
8419 Westminster Blvd,
Westminster, CA 92683-3308

Ph: (714) 248-9558

Reviews and Comments


Internal Medicine Doctors in Westminster, CA

Theresa Thanh Ngoc Nguyen, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 15576 Brookhurst St Ste B, Westminster, CA 92683
Phone: 714-775-8090    Fax: 714-775-2998
Dr. Hieu N Tram, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 15355 Brookhurst Street, Suite 102, Westminster, CA 92683
Phone: 714-775-3060    Fax: 714-531-0959
Dr. Vu Le, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 9938 Bolsa Ave, Suite 205, Westminster, CA 92683
Phone: 714-531-9515    Fax: 714-531-9510
Dr. Loc Dac Bui, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8900 Bolsa Ave, Suite B, Westminster, CA 92683
Phone: 714-897-2623    Fax: 714-379-0343
Paul T. Duong, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9433 Bolsa Ave, Suite # A, Westminster, CA 92683
Phone: 714-839-7332    
David N Pham, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 14120 Beach Blvd 101, Westminster, CA 92683
Phone: 714-887-0400    Fax: 714-887-0701
Phuong-chi Phan, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 14571 Magnolia St, Suite 207, Westminster, CA 92683
Phone: 714-890-9241    Fax: 714-890-9541

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.