ELAINE JAEKYUNG AHN NP
NPI 1639901739
Nurse Practitioner - Family in Hayward, CA
About Elaine Jaekyung Ahn Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELAINE JAEKYUNG AHN NP (NPI 1639901739) is an individual family provider in Hayward, California, licensed in California (95031021) and active in the NPI registry since August 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
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 and accepts Medicare assignment
Elaine Jaekyung Ahn Np 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 Elaine Ahn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fremont, CA 94538
- Reassigned Medicare billing, California enrollment
- 127 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 94541 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.
HAYWARD, CA 94541
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 Elaine Ahn's NPI number?
The NPI number for Elaine Ahn is 1639901739. It was assigned to this individual provider in the NPPES registry on August 16, 2024.
Where is Elaine Ahn located?
Elaine Ahn practices at 22331 Mission Blvd, Hayward, CA 94541. The listed phone number is (510) 471-5880.
What is Elaine Ahn's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Elaine Ahn enrolled in Medicare?
Yes. Elaine Ahn 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 Elaine Ahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elaine Ahn reassigns Medicare benefits to Bay Area Community Health (Fremont, 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 Elaine Ahn'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 Elaine Ahn was last updated on August 16, 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.
# Elaine Jaekyung Ahn, NP · NPI 1639901739
Family physician in Hayward, California. Individual provider, active in the CMS NPPES registry since August 16, 2024.
## Identity
- **NPI:** 1639901739 (Entity type: Individual)
- **Enumerated:** August 16, 2024
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95031021 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 22331 MISSION BLVD, Hayward, CA 94541-3911
- **Phone:** (510) 471-5880
## 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:** Bay Area Community Health (NPI 1184791998, Fremont, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** August 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1639901739) · Data from the CMS NPPES public registry.