Dr Christopher Duong Bui, MD - Medicare Internal Medicine in Santa Ana, CA

Dr Christopher Duong Bui, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Santa Ana, California. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Duong Christopher Bui, Md, Inc. and his current practice location is 202 N. Euclid, 201, Santa Ana, California. You can reach out to his office (for appointments etc.) via phone at (714) 531-3535.

Dr Christopher Duong Bui is licensed to practice in California (license number A49625) 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 1811061468.

Contact Information

Dr Christopher Duong Bui, MD
202 N. Euclid, 201,
Santa Ana, CA 92703-3090
(714) 531-3535
(714) 531-5950

Map and Direction




Physician's Profile

Full NameDr Christopher Duong Bui
GenderMale
SpecialityInternal Medicine
Experience42 Years
Location202 N. Euclid, Santa Ana, 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 Christopher Duong Bui graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1811061468
  • Provider Enumeration Date: 11/17/2006
  • Last Update Date: 04/03/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 7012178320
  • Enrollment ID: I20120413000172

Medical Identifiers

Medical identifiers for Dr Christopher Duong Bui such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811061468NPI-NPPES
1568738219OtherCANPI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A49625 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Duong Christopher Bui, Md, Inc.90323703412

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 Christopher Duong Bui allows following entities to bill medicare on his behalf.
Entity NameGarden Grove Surgical Center Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1982931465
PECOS PAC ID: 5193860898
Enrollment ID: O20100305000451
Entity NameDuong Christopher Bui, Md, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568738219
PECOS PAC ID: 9032370341
Enrollment ID: O20120413000148

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 Christopher Duong Bui 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 Christopher Duong Bui, MD
202 N. Euclid, 201,
Santa Ana, CA 92703-3090

Ph: (714) 531-3535
Dr Christopher Duong Bui, MD
202 N. Euclid, 201,
Santa Ana, CA 92703-3090

Ph: (714) 531-3535

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.