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Emergency Medicine

Marc K. Eckstein, MD

Works at hospitals in Thousand Oaks, CA · California

Summary

Marc K. Eckstein, MD (Emergency Medicine) is listed by Medicare at 1 hospital in Thousand Oaks, CA. NPI 1922010867. 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 Marc K. Eckstein, 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
37Years since medical school (graduated 1989)
Icahn School Of Medicine At Mount SinaiMedical school
MaleGender (as listed)
Team Physicians of California Medical Group IncGroup practice

Quick answers

Which hospitals does Marc K. Eckstein work at?
Medicare's official clinician data lists Marc K. Eckstein at 1 hospital: Los Robles Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Marc K. Eckstein see patients?
Medicare's clinician data lists 1 practice location in Thousand Oaks, CA. Call before your visit to confirm the address.
What is Marc K. Eckstein's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Marc K. Eckstein accept Medicare assignment?
Yes. Medicare's clinician data says Marc K. Eckstein 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 Marc K. Eckstein?
(805) 497-2727, as listed in official Medicare / NPI Registry data.
What is Marc K. Eckstein's NPI number?
1922010867. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marc K. Eckstein works

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

Group practices

Medicare enrollment lists Marc K. Eckstein as a member of this group (CMS data updated 2026-10-02).

  • Team Physicians of California Medical Group Inc98 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Thousand Oaks

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

All emergency medicine doctors in Thousand Oaks →

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year1989
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1922010867
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