TZU-JEN TZAO M.D.
NPI 1548453814
Emergency Medicine in Los Angeles, CA
About Tzu-jen Tzao M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TZU-JEN TZAO M.D. (NPI 1548453814) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A96855) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in Playa Vista.
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 (PECOS)
Tzu-jen Tzao M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Tzu-jen Tzao reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90059
- Reassigned Medicare billing, California enrollment
- 67 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 169 clinicians in this Medicare group
Dinuba, CA 93618
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Vohra Wound Physicians Of Ca PC
- 26 clinicians in this Medicare group
San Francisco, CA 94111
- Reassigned Medicare billing, California enrollment
- 407 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 2
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 90059 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 90059
LOS ANGELES, CA 90059
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 Tzu-jen Tzao's NPI number?
The NPI number for Tzu-jen Tzao is 1548453814. It was assigned to this individual provider in the NPPES registry on August 21, 2007.
Where is Tzu-jen Tzao located?
Tzu-jen Tzao practices at 1680 E 120th St, Los Angeles, CA 90059. The listed phone number is (424) 338-8144.
What is Tzu-jen Tzao's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Tzu-jen Tzao enrolled in Medicare?
Yes. Tzu-jen Tzao is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Tzu-jen Tzao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tzu-jen Tzao reassigns Medicare benefits to 4 organizations: Vep Mlk Emergency Medical Group Inc (Los Angeles, CA), Golden State Emergency Physicians Inc (Los Angeles, CA), Vohra Wound Physicians Of Ca, P.C. (Dinuba, CA) and Signify Health Medical Associates Of California, PC (San Francisco, 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 Tzu-jen Tzao'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 Tzu-jen Tzao was last updated on June 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Tzu-Jen Tzao, M.D. · NPI 1548453814
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since August 21, 2007.
## Identity
- **NPI:** 1548453814 (Entity type: Individual)
- **Enumerated:** August 21, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A96855 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1680 E 120TH ST, Los Angeles, CA 90059-3026
- **Phone:** (424) 338-8144
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Vep Mlk Emergency Medical Group Inc (NPI 1841679289, Los Angeles, CA); Golden State Emergency Physicians Inc (NPI 1770886558, Los Angeles, CA); Vohra Wound Physicians Of Ca, P.C. (NPI 1841599339, Dinuba, CA); Signify Health Medical Associates Of California, PC (NPI 1124685169, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 18, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1548453814) · Data from the CMS NPPES public registry.