Dr Michael Tieu Loi, DO - Medicare Internal Medicine in Irvine, CA

  1. Home
  2. Internal Medicine
  3. CA
  4. Irvine
Dr Michael Tieu Loi, DO is a medicare enrolled "Internal Medicine" physician in Irvine, California. He went to At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa and graduated in 2021 and has 4 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Riverside Faculty Medical Group Inc, Centers For Family Medicine Gp and his current practice location is 11 Technology Dr, Irvine, California. You can reach out to his office (for appointments etc.) via phone at (949) 923-3200.

Dr Michael Tieu Loi is licensed to practice in California (license number 20A22634) 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 1861057556.

Contact Information

Dr Michael Tieu Loi, DO
11 Technology Dr,
Irvine, CA 92618-2302
(949) 923-3200
Not Available

Map and Direction




Physician's Profile

Full NameDr Michael Tieu Loi
GenderMale
SpecialityInternal Medicine
Experience4 Years
Location11 Technology Dr, Irvine, 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 Michael Tieu Loi attended and graduated from At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa in 2021
  NPI Data:
  • NPI Number: 1861057556
  • Provider Enumeration Date: 05/08/2019
  • Last Update Date: 11/23/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2567803067
  • Enrollment ID: I20240515002227

Medical Identifiers

Medical identifiers for Dr Michael Tieu Loi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861057556NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A22634 (California)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Riverside University Health System-medical CenterMoreno valley, CAHospital
Mission Hospital Regional Med CenterMission viejo, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Riverside Faculty Medical Group Inc943625351576
Centers For Family Medicine Gp9931143799105

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 Michael Tieu Loi allows following entities to bill medicare on his behalf.
Entity NameHealthcare Partners Affiliates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659312593
PECOS PAC ID: 7315842002
Enrollment ID: O20031204001258
Entity NameCenters For Family Medicine Gp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467598243
PECOS PAC ID: 9931143799
Enrollment ID: O20050614000191
Entity NameRiverside Faculty Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124032461
PECOS PAC ID: 9436253515
Enrollment ID: O20070329000259

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 Michael Tieu Loi 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 Michael Tieu Loi, DO
Po Box 35380,
Las Vegas, NV 89133-5380

Ph: (702) 579-3203		Dr Michael Tieu Loi, DO
11 Technology Dr,
Irvine, CA 92618-2302

Ph: (949) 923-3200

Reviews and Comments


Internal Medicine Doctors in Irvine, CA

Akbar Nassiry, M.D., M.P.H.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4000 Barranca Parkway, Ste. 250, Irvine, CA 92604
Phone: 949-577-0047    Fax: 909-635-6085
Omid Vesal, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2500 Alton Parkway, Suite 101, Irvine, CA 92606
Phone: 949-222-2722    Fax: 949-222-9969
Dr. Maria Teresa Corpin Agner, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 11 Technology Dr, Irvine, CA 92618
Phone: 855-206-6764    Fax: 949-923-3575
Dr. Susan Davoodifar, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4199 Campus Dr, Suite 550, Irvine, CA 92612
Phone: 949-509-6503    Fax: 949-326-0103
Randa Serag, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4708 Barranca Pkwy, Irvine, CA 92604
Phone: 949-791-3101    Fax: 949-791-3112
Tara E Seery,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 16105 Sand Canyon Ave Ste 230, Irvine, CA 92618
Phone: 949-764-5347    Fax: 949-557-0221
Nadir Yusaf Qazi, DO
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 113 Waterworks Way Ste 105, Irvine, CA 92618
Phone: 949-336-7293    

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.