LOI DOAN DO
NPI 1316523178
Family Medicine in Costa Mesa, CA
About Loi Doan Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LOI DOAN DO (NPI 1316523178) is an individual family medicine provider in Costa Mesa, California, licensed in California (20A22333) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Loi Doan Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Loi Doan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fountain Valley, CA 92708
- Reassigned Medicare billing, California enrollment
- 948 clinicians in this Medicare group
Eastvale, CA 92880
- Reassigned Medicare billing, California enrollment
- 349 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92626 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COSTA MESA, CA 92626
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Loi Doan's NPI number?
The NPI number for Loi Doan is 1316523178. It was assigned to this individual provider in the NPPES registry on March 22, 2021.
Where is Loi Doan located?
Loi Doan practices at 722 Baker St, Costa Mesa, CA 92626. The listed phone number is (714) 557-6300.
What is Loi Doan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Loi Doan enrolled in Medicare?
Yes. Loi Doan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Loi Doan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Loi Doan reassigns Medicare benefits to 2 organizations: Memorialcare Medical Foundation (Fountain Valley, CA) and Riverside Medical Clinic, Inc (Eastvale, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Loi Doan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Loi Doan was last updated on August 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Loi Doan, DO · NPI 1316523178
Family Medicine physician in Costa Mesa, California. Individual provider, active in the CMS NPPES registry since March 22, 2021.
## Identity
- **NPI:** 1316523178 (Entity type: Individual)
- **Enumerated:** March 22, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 20A22333 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 722 BAKER ST, Costa Mesa, CA 92626-4320
- **Phone:** (714) 557-6300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Memorialcare Medical Foundation (NPI 1205167350, Fountain Valley, CA); Riverside Medical Clinic, Inc (NPI 1972845535, Eastvale, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1316523178) · Data from the CMS NPPES public registry.