Viet Sean Nguyen, MD - Medicare General Practice in Riverside, CA

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Viet Sean Nguyen, MD is a medicare enrolled "General Practice" physician in Riverside, California. His current practice location is 4445 Magnolia Ave, Riverside, California. You can reach out to his office (for appointments etc.) via phone at (951) 788-3000.

Viet Sean Nguyen is licensed to practice in California (license number A189934) 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 1902556855.

Contact Information

Viet Sean Nguyen, MD
4445 Magnolia Ave,
Riverside, CA 92501-4135
(951) 788-3000
Not Available

Map and Direction




Physician's Profile

Full NameViet Sean Nguyen
GenderMale
SpecialityGeneral Practice
Location4445 Magnolia Ave, Riverside, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1902556855
  • Provider Enumeration Date: 03/24/2022
  • Last Update Date: 07/28/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6305355561
  • Enrollment ID: I20250530002300

Medical Identifiers

Medical identifiers for Viet Sean Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902556855NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A189934 (California)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
208D00000XGeneral Practice A189934 (California)Primary

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. Viet Sean Nguyen allows following entities to bill medicare on his behalf.
Entity NameMountain View Emergency Physicians Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619923653
PECOS PAC ID: 5092606376
Enrollment ID: O20040324000887
Entity NameMountain View Urgent Care Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023306784
PECOS PAC ID: 7214107861
Enrollment ID: O20110908002279

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. Viet Sean 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
Viet Sean Nguyen, MD
4445 Magnolia Ave,
Riverside, CA 92501-4135

Ph: () -		Viet Sean Nguyen, MD
4445 Magnolia Ave,
Riverside, CA 92501-4135

Ph: (951) 788-3000

Reviews and Comments


General Practice Doctors in Riverside, CA

Joann Schneider, M.D.
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 6848 Magnolia Ave, Ste 130, Riverside, CA 92506
Phone: 951-683-1174    Fax: 951-682-1253
David Lee, M.D.
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 7164 Magnolia Ave, Riverside, CA 92504
Phone: 951-787-8030    
William John Montgomery, MD
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 4300 Central Ave, Riverside, CA 92506
Phone: 951-222-2206    Fax: 951-222-2106
Cameron Hand, MD
General Practice
Medicare: Medicare Enrolled
Practice Location: 10800 Magnolia Ave, Riverside, CA 92505
Phone: 951-353-3981    Fax: 951-353-5838
Dr. Prabha Dhalla, M.D.
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 4343 Market St, Suite A, Riverside, CA 92501
Phone: 951-787-4880    Fax: 951-787-8628
Dr. David Farfan, MD
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 7877 Trey Ave, Riverside, CA 92503
Phone: 951-790-9226    
Dee W. Lim, MD
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 10800 Magnolia Ave, Riverside, CA 92505
Phone: 909-353-2000    

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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