MS. ELLIZA MARIE TOLOME ONG CRNA
NPI 1821273780
Registered Nurse in San Francisco, CA
About Ms. Elliza Marie Tolome Ong Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ELLIZA MARIE TOLOME ONG CRNA (NPI 1821273780) is an individual registered nurse in San Francisco, California, licensed in California (550980) and active in the NPI registry since January 2008. She is a graduate of Other (2006).
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
Ms. Elliza Marie Tolome Ong Crna 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 Elliza Marie Ong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
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 Elliza Marie Ong's NPI number?
The NPI number for Elliza Marie Ong is 1821273780. It was assigned to this individual provider in the NPPES registry on January 9, 2008.
Where is Elliza Marie Ong located?
Elliza Marie Ong practices at 1001 Potrero Ave Room 3c38, San Francisco, CA 94110. The listed phone number is (415) 206-8163.
What is Elliza Marie Ong's specialty?
The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.
Is Elliza Marie Ong enrolled in Medicare?
Yes. Elliza Marie Ong 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 Elliza Marie Ong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elliza Marie Ong reassigns Medicare benefits to University Of California Sfgh Medical Group (San Francisco, 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 Elliza Marie Ong'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 Elliza Marie Ong was last updated on January 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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. Elliza Marie Tolome Ong, CRNA · NPI 1821273780
Registered Nurse provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since January 9, 2008.
## Identity
- **NPI:** 1821273780 (Entity type: Individual)
- **Enumerated:** January 9, 2008
- **Primary specialty:** Registered Nurse · taxonomy 163W00000X
- **State license:** 550980 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 POTRERO AVE, ROOM 3C38, San Francisco, CA 94110
- **Phone:** (415) 206-8163
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** January 11, 2008
---
Source: [NPI Profile](https://npiprofile.com/npi/1821273780) · Data from the CMS NPPES public registry.