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Family Practice

Clair S. Segui, MD

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

Summary

Clair S. Segui, MD (Family Practice) is listed by Medicare at 2 hospitals in Fremont, CA and San Leandro, CA. NPI 1811939598. 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 Clair S. Segui, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
30Years since medical school (graduated 1996)
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Which hospitals does Clair S. Segui work at?
Medicare's official clinician data lists Clair S. Segui 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 Clair S. Segui see patients?
Medicare's clinician data lists 1 practice location in Richmond, CA. Call before your visit to confirm the address.
What is Clair S. Segui's specialty?
Medicare lists Family Practice as the primary specialty.
Does Clair S. Segui accept Medicare assignment?
Yes. Medicare's clinician data says Clair S. Segui 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 Clair S. Segui offer telehealth?
Medicare's clinician data says Clair S. Segui offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Clair S. Segui?
(510) 307-1500, as listed in official Medicare / NPI Registry data.
What is Clair S. Segui's NPI number?
1811939598. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Clair S. Segui works

Medicare's Facility Affiliation Data lists Clair S. Segui 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 Clair S. Segui is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Clair S. Segui as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Richmond

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

All family doctors in Richmond →

Clinician information

CredentialMD
Graduation year1996
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1811939598
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