ALEXANDER CHEN
NPI 1194256669
Psychiatry & Neurology - Psychiatry in Los Angeles, CA
About Alexander Chen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER CHEN (NPI 1194256669) is an individual psychiatry provider in Los Angeles, California, licensed in California (A160654) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Ventura, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Alexander Chen 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 Alexander Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 710 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 90033 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.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Alexander Chen's NPI number?
The NPI number for Alexander Chen is 1194256669. It was assigned to this individual provider in the NPPES registry on March 25, 2017.
Where is Alexander Chen located?
Alexander Chen practices at 1200 N State St Ct-A7d, Los Angeles, CA 90033. The listed phone number is (323) 452-3814.
What is Alexander Chen's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Alexander Chen enrolled in Medicare?
Yes. Alexander Chen 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 Alexander Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Chen reassigns Medicare benefits to County Of Ventura (Simi Valley, 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 Alexander Chen'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 Alexander Chen was last updated on May 3, 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.
# Alexander Chen · NPI 1194256669
Psychiatry physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 25, 2017.
## Identity
- **NPI:** 1194256669 (Entity type: Individual)
- **Enumerated:** March 25, 2017
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** A160654 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1200 N STATE ST, CT-A7D, Los Angeles, CA 90033-1029
- **Phone:** (323) 452-3814
## 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:** County Of Ventura (NPI 1013139658, Simi Valley, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** May 3, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1194256669) · Data from the CMS NPPES public registry.