PEGGY FENG MD
NPI 1922291822
Pediatrics in Fremont, CA
About Peggy Feng Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PEGGY FENG MD (NPI 1922291822) is an individual pediatrics provider in Fremont, California, licensed in California (A99126) and active in the NPI registry since August 2007. 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)
Peggy Feng Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Peggy Feng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Palo Alto, CA 94301
- 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94538 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.
FREMONT, CA 94538
FREMONT, CA 94538
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 Peggy Feng's NPI number?
The NPI number for Peggy Feng is 1922291822. It was assigned to this individual provider in the NPPES registry on August 23, 2007.
Where is Peggy Feng located?
Peggy Feng practices at 3200 Kearney St, Fremont, CA 94538. The listed phone number is (510) 490-1222.
What is Peggy Feng's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Peggy Feng enrolled in Medicare?
Yes. Peggy Feng is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Peggy Feng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peggy Feng reassigns Medicare benefits to Sutter Bay Medical Foundation (Palo Alto, 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 Peggy Feng'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 Peggy Feng was last updated on June 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.