Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

MS. Elliza Marie Tolome Ong, CRNA

Individual provider Registered Nurse · NPI 1821273780

MS. Elliza Marie Tolome Ong, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in San Francisco, California. Qualified in 2006, 20 years ago. Practices with University of California Sfgh Medical Group, a 571-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Licensed in
CA
In the registry since
2008
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

1001 Potrero Ave Rm 3C38
San Francisco, CA 94110 Not confirmed with CMS for 18 years — call before visiting
Phone: (415) 206-8163
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 550980 (CA)

Record details

NPI number1821273780
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJanuary 9, 2008
Last updated in NPPESJanuary 11, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice University Of California Sfgh Medical Group — 571 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients119
Services billed 126 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of California Sfgh Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 571 clinicians in the practice; 12 are shown here.

Other providers in San Francisco