Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Ellen O'Malley Kato, FNP

Individual provider Registered Nurse · NPI 1598044844

Ellen O'Malley Kato, FNP is a Nurse Practitioner in San Francisco, California. Qualified in 2011, 15 years ago. Practices with One Medical Group Inc, a 328-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Licensed in
CA
In the registry since
2011
Specialties on file
3
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

2 Embarcadero Ctr Lbby Level
San Francisco, CA 94111-3823
Phone: (888) 663-6331
Fax: (415) 252-7176
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 21049 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 761433 (CA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 21049 (CA)

Record details

NPI number1598044844
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedAugust 4, 2011
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice One Medical Group Inc — 328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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