MS. AESIL CHEUN NP
NPI 1184946741
Nurse Practitioner - Family in Martinez, CA
About Ms. Aesil Cheun Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. AESIL CHEUN NP (NPI 1184946741) is an individual family provider in Martinez, California, licensed in California (17611) and active in the NPI registry since February 2010. 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)
Ms. Aesil Cheun Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Aesil Cheun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Martinez, CA 94553
- Reassigned Medicare billing, California enrollment
- 530 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 94553 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.
MARTINEZ, CA 94553
MARTINEZ, CA 94553
MARTINEZ, CA 94553
MARTINEZ, CA 94553
MARTINEZ, CA 94553
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 Aesil Cheun's NPI number?
The NPI number for Aesil Cheun is 1184946741. It was assigned to this individual provider in the NPPES registry on February 24, 2010.
Where is Aesil Cheun located?
Aesil Cheun practices at 597 Center Ave Suite 200, Martinez, CA 94553. The listed phone number is (925) 765-9247.
What is Aesil Cheun's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Aesil Cheun enrolled in Medicare?
Yes. Aesil Cheun is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Aesil Cheun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aesil Cheun reassigns Medicare benefits to Contra Costa County (Martinez, 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 Aesil Cheun'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 Aesil Cheun was last updated on November 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Ms. Aesil Cheun, NP · NPI 1184946741
Family physician in Martinez, California. Individual provider, active in the CMS NPPES registry since February 24, 2010.
## Identity
- **NPI:** 1184946741 (Entity type: Individual)
- **Enumerated:** February 24, 2010
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 17611 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 597 CENTER AVE, SUITE 200, Martinez, CA 94553-4640
- **Phone:** (925) 765-9247
## 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:** Contra Costa County (NPI 1750509162, Martinez, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 14, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1184946741) · Data from the CMS NPPES public registry.