ZACHARY CHEN DO
NPI 1235759366
Anesthesiology in W Hollywood, CA
About Zachary Chen Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHARY CHEN DO (NPI 1235759366) is an individual anesthesiology provider in W Hollywood, California, licensed in California (20A24069) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 2
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
Zachary Chen 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
5Medicare enrollment records show Zachary Chen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 131 clinicians in this Medicare group
Glendale, CA 91206
- Reassigned Medicare billing, California enrollment
- 164 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 1,905 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 2,237 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.
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.
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 Zachary Chen's NPI number?
The NPI number for Zachary Chen is 1235759366. It was assigned to this individual provider in the NPPES registry on April 18, 2020.
Where is Zachary Chen located?
Zachary Chen practices at 8700 Beverly Blvd Ste Sb290, W Hollywood, CA 90048. The listed phone number is (310) 423-5841.
What is Zachary Chen's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Zachary Chen enrolled in Medicare?
Yes. Zachary 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 organizations bill Medicare for Zachary Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Chen reassigns Medicare benefits to 5 organizations: Cedars-Sinai Medical Care Foundation (Los Angeles, CA), White Memorial Medical Center (Los Angeles, CA), Glendale Adventist Medical Center (Glendale, CA), The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). 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 Zachary 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 Zachary Chen was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Zachary Chen, DO · NPI 1235759366
Anesthesiology physician in W Hollywood, California. Individual provider, active in the CMS NPPES registry since April 18, 2020.
## Identity
- **NPI:** 1235759366 (Entity type: Individual)
- **Enumerated:** April 18, 2020
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 20A24069 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 8700 BEVERLY BLVD STE SB290, W Hollywood, CA 90048-1804
- **Phone:** (310) 423-5841
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA); White Memorial Medical Center (NPI 1215927470, Los Angeles, CA); Glendale Adventist Medical Center (NPI 1336138403, Glendale, CA); The University Of Chicago Medical Center (NPI 1033218128, Chicago, IL); University Of Chicago (NPI 1821048786, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1235759366) · Data from the CMS NPPES public registry.