Dr Alexander Nguyen, MD - Medicare Gastroenterology in Torrance, CA

Dr Alexander Nguyen, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Torrance, California. He went to University Of California, Irvine, California College Of Medicine and graduated in 2014 and has 10 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice South Bay Gastroenterology Medical Group and his current practice location is 23456 Hawthorne Blvd Ste 300, Torrance, California. You can reach out to his office (for appointments etc.) via phone at (310) 539-2055.

Dr Alexander Nguyen is licensed to practice in California (license number A138402) 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 1427476233.

Contact Information

Dr Alexander Nguyen, MD
23456 Hawthorne Blvd Ste 300,
Torrance, CA 90505-4716
(310) 539-2055
(310) 539-1099

Map and Direction




Physician's Profile

Full NameDr Alexander Nguyen
GenderMale
SpecialityGastroenterology
Experience10 Years
Location23456 Hawthorne Blvd Ste 300, Torrance, 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 Alexander Nguyen attended and graduated from University Of California, Irvine, California College Of Medicine in 2014
  NPI Data:
  • NPI Number: 1427476233
  • Provider Enumeration Date: 03/31/2014
  • Last Update Date: 07/08/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1658643390
  • Enrollment ID: I20200507001399

Medical Identifiers

Medical identifiers for Dr Alexander Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427476233NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A138402 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Torrance Memorial Medical CenterTorrance, CAHospital
Providence Little Company Of Mary Med Ctr TorranceTorrance, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
South Bay Gastroenterology Medical Group418365137511

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 Alexander Nguyen allows following entities to bill medicare on his behalf.
Entity NameUsc Care Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902846306
PECOS PAC ID: 0446157747
Enrollment ID: O20050512000412
Entity NameSouth Bay Gastroenterology Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609893619
PECOS PAC ID: 4183651375
Enrollment ID: O20050719001139

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 Alexander 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
Dr Alexander Nguyen, MD
Po Box 31309,
Los Angeles, CA 90031-0309

Ph: (323) 442-5100
Dr Alexander Nguyen, MD
23456 Hawthorne Blvd Ste 300,
Torrance, CA 90505-4716

Ph: (310) 539-2055

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.