ELENA LUO CHAN MD
NPI 1346738267
Obstetrics & Gynecology in Hayward, CA
About Elena Luo Chan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELENA LUO CHAN MD (NPI 1346738267) is an individual obstetrics & gynecology provider in Hayward, California, licensed in California (A163465) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Mountain View, and is a graduate of Loma Linda University School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Elena Luo Chan 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 Reassignment
Medicare enrollment records show Elena Chan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Emeryville, CA 94608
- Reassigned Medicare billing, California enrollment
- 79 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 94545 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 10
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 Elena Chan's NPI number?
The NPI number for Elena Chan is 1346738267. It was assigned to this individual provider in the NPPES registry on April 26, 2018.
Where is Elena Chan located?
Elena Chan practices at 27225 Calaroga Ave, Hayward, CA 94545. The listed phone number is (408) 259-5950.
What is Elena Chan's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Elena Chan enrolled in Medicare?
Yes. Elena Chan 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 organization bills Medicare for Elena Chan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elena Chan reassigns Medicare benefits to Ucsf Health Medical Foundation (Emeryville, 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 Elena Chan'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 Elena Chan was last updated on February 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Elena Luo Chan, MD · NPI 1346738267
Obstetrics & Gynecology physician in Hayward, California. Individual provider, active in the CMS NPPES registry since April 26, 2018.
## Identity
- **NPI:** 1346738267 (Entity type: Individual)
- **Enumerated:** April 26, 2018
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A163465 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 27225 CALAROGA AVE, Hayward, CA 94545-4338
- **Phone:** (408) 259-5950
## 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:** Ucsf Health Medical Foundation (NPI 1043628316, Emeryville, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** February 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1346738267) · Data from the CMS NPPES public registry.