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Emergency Medicine

Theresa E. Sexton, DO

Works at hospitals in Fremont, CA · San Leandro, CA · California

Summary

Theresa E. Sexton, DO (Emergency Medicine) is listed by Medicare at 2 hospitals in Fremont, CA and San Leandro, CA. NPI 1336501345. 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 Theresa E. Sexton, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
10Years since medical school (graduated 2016)
Michigan State University College Of Osteopathic MedicineMedical school
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Which hospitals does Theresa E. Sexton work at?
Medicare's official clinician data lists Theresa E. Sexton at 2 hospitals: Kaiser Foundation Hospital - Fremont and Kaiser Foundation Hospital - San Leandro. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Theresa E. Sexton see patients?
Medicare's clinician data lists 1 practice location in Fremont, CA. Call before your visit to confirm the address.
What is Theresa E. Sexton's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Theresa E. Sexton accept Medicare assignment?
Yes. Medicare's clinician data says Theresa E. Sexton 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 Theresa E. Sexton?
(510) 248-3000, as listed in official Medicare / NPI Registry data.
What is Theresa E. Sexton's NPI number?
1336501345. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Theresa E. Sexton works

Medicare's Facility Affiliation Data lists Theresa E. Sexton 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 Theresa E. Sexton is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Theresa E. Sexton as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Fremont

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

All emergency medicine doctors in Fremont →

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2016
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336501345
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