CATTIEN NGOC PHAN DO
NPI 1992383525
Psychiatry & Neurology - Neurology in Irvine, CA
About Cattien Ngoc Phan Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATTIEN NGOC PHAN DO (NPI 1992383525) is an individual neurology provider in Irvine, California, licensed in California (20A20780) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Cattien Ngoc Phan 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 Reassignment
Medicare enrollment records show Cattien Phan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92618 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
IRVINE, CA 92618
IRVINE, CA 92618
IRVINE, CA 92618
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 Cattien Phan's NPI number?
The NPI number for Cattien Phan is 1992383525. It was assigned to this individual provider in the NPPES registry on April 2, 2021. The provider is also known as Cat Tien Ngoc Phan.
Where is Cattien Phan located?
Cattien Phan practices at 6670 Alton Pkwy, Irvine, CA 92618. The listed phone number is (833) 574-2273.
What is Cattien Phan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Cattien Phan enrolled in Medicare?
Yes. Cattien Phan 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 organization bills Medicare for Cattien Phan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cattien Phan reassigns Medicare benefits to Southern California Permanente Medical Group (Anaheim, CA). The 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 Cattien Phan'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 Cattien Phan was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Cattien Ngoc Phan, DO · NPI 1992383525
Neurology physician in Irvine, California. Individual provider, active in the CMS NPPES registry since April 2, 2021.
## Identity
- **NPI:** 1992383525 (Entity type: Individual)
- **Enumerated:** April 2, 2021
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 20A20780 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6670 ALTON PKWY, Irvine, CA 92618-3734
- **Phone:** (833) 574-2273
## 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:** Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1992383525) · Data from the CMS NPPES public registry.