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Nurse Practitioner

Ellen Kato, NP

Works at hospitals in San Francisco, CA · California

Summary

Ellen Kato, NP (Nurse Practitioner) is listed by Medicare at 1 hospital in San Francisco, CA. NPI 1598044844. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ellen Kato, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
FemaleGender (as listed)
One Medical Group IncGroup practice

Quick answers

Which hospitals does Ellen Kato work at?
Medicare's official clinician data lists Ellen Kato at 1 hospital: California Pacific Medical Center- Van Ness Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ellen Kato see patients?
Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
What is Ellen Kato's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Ellen Kato accept Medicare assignment?
Yes. Medicare's clinician data says Ellen Kato accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Ellen Kato?
(888) 663-6331, as listed in official Medicare / NPI Registry data.
What is Ellen Kato's NPI number?
1598044844. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ellen Kato works

Medicare's Facility Affiliation Data lists Ellen Kato at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Ellen Kato is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ellen Kato as a member of this group (CMS data updated 2026-10-02).

  • One Medical Group Inc331 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, California →

Other nurse practitioners in San Francisco

Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.

All nurse practitioners in San Francisco →

Clinician information

CredentialNP
Graduation year2011
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598044844
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians