KE-YOU ZHANG MD
NPI 1922492388
Pediatrics - Pediatric Gastroenterology in Palo Alto, CA
About Ke-you Zhang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KE-YOU ZHANG MD (NPI 1922492388) is an individual pediatric gastroenterology provider in Palo Alto, California, licensed in California (A149148) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS and is a graduate of University Of Connecticut School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 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
Ke-you Zhang Md 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
2Medicare enrollment records show Ke-you Zhang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 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 94304 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.
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 Ke-you Zhang's NPI number?
The NPI number for Ke-you Zhang is 1922492388. It was assigned to this individual provider in the NPPES registry on March 24, 2015. The provider is also known as Yoyo Zhang.
Where is Ke-you Zhang located?
Ke-you Zhang practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.
What is Ke-you Zhang's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.
Is Ke-you Zhang enrolled in Medicare?
Yes. Ke-you Zhang 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 Ke-you Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ke-you Zhang reassigns Medicare benefits to 2 organizations: Lpch Medical Group Div Of Lucile (Palo Alto, CA) and Stanford Health Care (Stanford, 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 Ke-you 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 Ke-you Zhang was last updated on April 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Ke-You Zhang, MD · NPI 1922492388
Pediatric Gastroenterology physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since March 24, 2015.
## Identity
- **NPI:** 1922492388 (Entity type: Individual)
- **Enumerated:** March 24, 2015
- **Primary specialty:** Pediatrics - Pediatric Gastroenterology · taxonomy 2080P0206X
- **State license:** A149148 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 725 WELCH RD, Palo Alto, CA 94304-1601
- **Phone:** (650) 497-8000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Lpch Medical Group Div Of Lucile (NPI 1417907940, Palo Alto, CA); Stanford Health Care (NPI 1437292927, Stanford, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** April 10, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1922492388) · Data from the CMS NPPES public registry.