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Emergency Medicine

Maia Winkel, MD

Works at hospitals in Greenbrae, CA · Stanford, CA · California

Summary

Maia Winkel, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Greenbrae, CA and Stanford, CA. NPI 1114554888. 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 Maia Winkel, 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
6Years since medical school (graduated 2020)
FemaleGender (as listed)
Stanford Health CareGroup practice

Quick answers

Which hospitals does Maia Winkel work at?
Medicare's official clinician data lists Maia Winkel at 2 hospitals: Marinhealth Medical Center and Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Maia Winkel see patients?
Medicare's clinician data lists 1 practice location in Stanford, CA. Call before your visit to confirm the address.
What is Maia Winkel's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Maia Winkel accept Medicare assignment?
Yes. Medicare's clinician data says Maia Winkel 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 Maia Winkel?
(650) 723-4000, as listed in official Medicare / NPI Registry data.
What is Maia Winkel's NPI number?
1114554888. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Maia Winkel works

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

Group practices

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

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Stanford

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

All emergency medicine doctors in Stanford →

Clinician information

CredentialMD
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114554888
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