HONGYU ZHAO M.D.
NPI 1134660350
Internal Medicine - Nephrology in Downey, CA
About Hongyu Zhao M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HONGYU ZHAO M.D. (NPI 1134660350) is an individual nephrology provider in Downey, California, licensed in California (A157856) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (2017).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Hongyu Zhao M.d. 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.
Areas of Expertise CMS Part B claims
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 90242 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.
DOWNEY, CA 90242
DOWNEY, CA 90242
DOWNEY, CA 90242
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 Hongyu Zhao's NPI number?
The NPI number for Hongyu Zhao is 1134660350. It was assigned to this individual provider in the NPPES registry on March 20, 2017.
Where is Hongyu Zhao located?
Hongyu Zhao practices at 9449 Imperial Hwy, Downey, CA 90242. The listed phone number is (408) 851-1000.
What is Hongyu Zhao's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Hongyu Zhao enrolled in Medicare?
Yes. Hongyu Zhao 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.
When was this NPI record last updated?
The NPPES record for Hongyu Zhao was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.
# Hongyu Zhao, M.D. · NPI 1134660350
Nephrology physician in Downey, California. Individual provider, active in the CMS NPPES registry since March 20, 2017.
## Identity
- **NPI:** 1134660350 (Entity type: Individual)
- **Enumerated:** March 20, 2017
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** A157856 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9449 IMPERIAL HWY, Downey, CA 90242-2814
- **Phone:** (408) 851-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Rush Medical College Of Rush University, class of 2017
## Record status
- **NPPES last updated:** August 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1134660350) · Data from the CMS NPPES public registry.