YUN CHEONG CHANG MD
NPI 1790472454
Pediatrics - Neonatal-Perinatal Medicine in San Francisco, CA
About Yun Cheong Chang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YUN CHEONG CHANG MD (NPI 1790472454) is an individual neonatal-perinatal medicine provider in San Francisco, California, licensed in California (A209264) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS and is a graduate of University Of South Florida College Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Yun Cheong Chang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Yun Cheong Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orinda, CA 94563
- Reassigned Medicare billing, California enrollment
- 4,479 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94103
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 Yun Cheong Chang's NPI number?
The NPI number for Yun Cheong Chang is 1790472454. It was assigned to this individual provider in the NPPES registry on April 21, 2023.
Where is Yun Cheong Chang located?
Yun Cheong Chang practices at 350 Rhode Island St Ste 200, San Francisco, CA 94103. The listed phone number is (415) 600-6420.
What is Yun Cheong Chang's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Yun Cheong Chang enrolled in Medicare?
Yes. Yun Cheong Chang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Yun Cheong Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yun Cheong Chang reassigns Medicare benefits to Sutter Bay Medical Foundation (Orinda, 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 Yun Cheong Chang'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 Yun Cheong Chang was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Yun Cheong Chang, MD · NPI 1790472454
Neonatal-Perinatal Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 21, 2023.
## Identity
- **NPI:** 1790472454 (Entity type: Individual)
- **Enumerated:** April 21, 2023
- **Primary specialty:** Pediatrics - Neonatal-Perinatal Medicine · taxonomy 2080N0001X
- **State license:** A209264 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 350 RHODE ISLAND ST STE 200, San Francisco, CA 94103-5188
- **Phone:** (415) 600-6420
## 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:** Sutter Bay Medical Foundation (NPI 1366898538, Orinda, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** August 10, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1790472454) · Data from the CMS NPPES public registry.