Dr Andrew Khoi Nguyen, MD - Medicare Internal Medicine in Downey, CA

Dr Andrew Khoi Nguyen, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Downey, California. His current practice location is 11500 Brookshire Ave, Downey, California. You can reach out to his office (for appointments etc.) via phone at (714) 902-5641.

Dr Andrew Khoi Nguyen is licensed to practice in California (license number 151128) 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 1154784783.

Contact Information

Dr Andrew Khoi Nguyen, MD
11500 Brookshire Ave,
Downey, CA 90241-4917
(714) 902-5641
Not Available

Map and Direction




Physician's Profile

Full NameDr Andrew Khoi Nguyen
GenderMale
SpecialityInternal Medicine - Gastroenterology
Location11500 Brookshire Ave, Downey, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1154784783
  • Provider Enumeration Date: 03/31/2016
  • Last Update Date: 08/12/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2466783774
  • Enrollment ID: I20221019001793

Medical Identifiers

Medical identifiers for Dr Andrew Khoi Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154784783NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 11265647-1205 (Utah)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207RG0100XInternal Medicine - Gastroenterology 151128 (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. Dr Andrew Khoi Nguyen allows following entities to bill medicare on his behalf.
Entity NamePih Health Physicians
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609233899
PECOS PAC ID: 8426951328
Enrollment ID: O20040128001177

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 Andrew Khoi 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 Andrew Khoi Nguyen, MD
11500 Brookshire Ave,
Downey, CA 90241-4917

Ph: () -
Dr Andrew Khoi Nguyen, MD
11500 Brookshire Ave,
Downey, CA 90241-4917

Ph: (714) 902-5641

Reviews and Comments


Internal Medicine Doctors in Downey, CA

Brandon Lui,
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 9333 Imperial Hwy, Downey, CA 90242
Phone: 562-657-9000    
Mr. Nazar Al-bussam, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 11411 Brookshire Ave, Ste 503, Downey, CA 90241
Phone: 562-861-8853    Fax: 562-861-8820
Betzabe M Alday, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 7601 Imperial Hwy, Downey, CA 90242
Phone: 562-803-0124    Fax: 562-803-5569
Dr. Kiran Pandey, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 9333 Imperial Hwy, Downey, Downey, CA 90242
Phone: 877-608-0044    
Sohail Afra, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 9449 Imperial Hwy # C-228, Downey, CA 90242
Phone: 562-657-4958    
Ava Azimi, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 11500 Brookshire Ave, Downey, CA 90241
Phone: 562-904-5000    
Bhavik V Thakkar, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 11525 Brookshire Ave, Suite 400, Downey, CA 90241
Phone: 562-869-4497    Fax: 562-869-6317

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.