YING ZHANG
NPI 1427337229
Pediatrics in San Francisco, CA
About Ying Zhang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YING ZHANG (NPI 1427337229) is an individual pediatrics provider in San Francisco, California, licensed in California (A130526) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ying Zhang is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ying Zhang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94133
- Reassigned Medicare billing, California enrollment
- 176 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 94133 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.
SAN FRANCISCO, CA 94133
SAN FRANCISCO, CA 94133
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 Ying Zhang's NPI number?
The NPI number for Ying Zhang is 1427337229. It was assigned to this individual provider in the NPPES registry on August 10, 2011.
Where is Ying Zhang located?
Ying Zhang practices at 1520 Stockton St, San Francisco, CA 94133. The listed phone number is (415) 391-9686.
What is Ying Zhang's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ying Zhang enrolled in Medicare?
Yes. Ying Zhang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ying Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ying Zhang reassigns Medicare benefits to North East Medical Services (San Francisco, 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 Ying Zhang'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 Ying Zhang was last updated on July 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Ying Zhang · NPI 1427337229
Pediatrics physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 10, 2011.
## Identity
- **NPI:** 1427337229 (Entity type: Individual)
- **Enumerated:** August 10, 2011
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** A130526 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1520 STOCKTON ST, San Francisco, CA 94133-3354
- **Phone:** (415) 391-9686
## 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:** North East Medical Services (NPI 1518911304, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 14, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1427337229) · Data from the CMS NPPES public registry.