Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Kathryn D. Simms, NP

Works at hospitals in Castro Valley, CA · Stanford, CA · Pleasanton, CA · California

Summary

Kathryn D. Simms, NP (Nurse Practitioner) is listed by Medicare at 3 hospitals in Castro Valley, CA, Stanford, CA and Pleasanton, CA. NPI 1447770359. 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 Kathryn D. Simms, 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
YesOffers telehealth
9Years since medical school (graduated 2017)
FemaleGender (as listed)
Stanford Health CareGroup practice

Quick answers

Which hospitals does Kathryn D. Simms work at?
Medicare's official clinician data lists Kathryn D. Simms at 3 hospitals: Eden Medical Center, Stanford Health Care and Stanford Health Care Tri-Valley. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Kathryn D. Simms see patients?
Medicare's clinician data lists 1 practice location in Stanford, CA. Call before your visit to confirm the address.
What is Kathryn D. Simms's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Kathryn D. Simms accept Medicare assignment?
Yes. Medicare's clinician data says Kathryn D. Simms 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.
Does Kathryn D. Simms offer telehealth?
Medicare's clinician data says Kathryn D. Simms offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Kathryn D. Simms?
(650) 723-4000, as listed in official Medicare / NPI Registry data.
What is Kathryn D. Simms's NPI number?
1447770359. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kathryn D. Simms works

Medicare's Facility Affiliation Data lists Kathryn D. Simms 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 Kathryn D. Simms is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Kathryn D. Simms as a member of this group (CMS data updated 2026-10-02).

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, California →

Other nurse practitioners in Stanford

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

All nurse practitioners in Stanford →

Clinician information

CredentialNP
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1447770359
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