MARC K ECKSTEIN M.D.
NPI 1922010867
Emergency Medicine in Los Angeles, CA
About Marc K Eckstein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARC K ECKSTEIN M.D. (NPI 1922010867) is an individual emergency medicine provider in Los Angeles, California, licensed in California (G69852) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marc K Eckstein M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Marc Eckstein reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 clinicians in this Medicare group
West Hills, CA 91307
- Reassigned Medicare billing, California enrollment
- 49 clinicians in this Medicare group
Thousand Oaks, CA 91360
- Reassigned Medicare billing, California enrollment
- 70 clinicians in this Medicare group
Delano, CA 93215
- Reassigned Medicare billing, California enrollment
- 301 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marc Eckstein's NPI number?
The NPI number for Marc Eckstein is 1922010867. It was assigned to this individual provider in the NPPES registry on August 12, 2006.
Where is Marc Eckstein located?
Marc Eckstein practices at 1200 N State St Suite 1011, Los Angeles, CA 90033. The listed phone number is (323) 226-6667.
What is Marc Eckstein's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Marc Eckstein enrolled in Medicare?
Yes. Marc Eckstein is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Marc Eckstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Eckstein reassigns Medicare benefits to 4 organizations: Usc Care Medical Group, Inc (Los Angeles, CA), West Hills Emergency Medical Associates, Inc (West Hills, CA), Los Robles Emergency Physicians Medical Group (Thousand Oaks, CA) and Team Physicians Of California Medical Group Inc (Delano, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Eckstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marc Eckstein was last updated on December 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Marc K Eckstein, M.D. · NPI 1922010867
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since August 12, 2006.
## Identity
- **NPI:** 1922010867 (Entity type: Individual)
- **Enumerated:** August 12, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G69852 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1200 N STATE ST, SUITE 1011, Los Angeles, CA 90033-1029
- **Phone:** (323) 226-6667
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA); West Hills Emergency Medical Associates, Inc (NPI 1275761249, West Hills, CA); Los Robles Emergency Physicians Medical Group (NPI 1417983552, Thousand Oaks, CA); Team Physicians Of California Medical Group Inc (NPI 1447288345, Delano, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 1989
## Record status
- **NPPES last updated:** December 16, 2021
- **Other identifiers:** Medicaid 00G698520 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1922010867) · Data from the CMS NPPES public registry.