SUMI WONG-YAP R.N., N.P.
NPI 1457696312
Nurse Practitioner - Adult Health in Oakland, CA
About Sumi Wong-yap R.n., N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUMI WONG-YAP R.N., N.P. (NPI 1457696312) is an individual adult health provider in Oakland, California, licensed in California (21015) and active in the NPI registry since December 2012. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2011).
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
Sumi Wong-yap R.n., N.p. 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 Sumi Wong-yap reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oakland, CA 94607
- Reassigned Medicare billing, California enrollment
- 130 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 94607 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Sumi Wong-yap's NPI number?
The NPI number for Sumi Wong-yap is 1457696312. It was assigned to this individual provider in the NPPES registry on December 4, 2012.
Where is Sumi Wong-yap located?
Sumi Wong-yap practices at 818 Webster St., Oakland, CA 94607. The listed phone number is (510) 986-6800.
What is Sumi Wong-yap's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Sumi Wong-yap enrolled in Medicare?
Yes. Sumi Wong-yap 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 Sumi Wong-yap's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sumi Wong-yap reassigns Medicare benefits to Asian Health Services (Oakland, 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 Sumi Wong-yap'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 Sumi Wong-yap was last updated on December 4, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Sumi Wong-Yap, R.N., N.P. · NPI 1457696312
Adult Health physician in Oakland, California. Individual provider, active in the CMS NPPES registry since December 4, 2012.
## Identity
- **NPI:** 1457696312 (Entity type: Individual)
- **Enumerated:** December 4, 2012
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 21015 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 818 WEBSTER ST., Oakland, CA 94607
- **Phone:** (510) 986-6800
## 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:** Asian Health Services (NPI 1841331402, Oakland, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** December 4, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1457696312) · Data from the CMS NPPES public registry.