DR. ETHAN MITCHELL ROSS MD
NPI 1780848507
Emergency Medicine in Los Angeles, CA
About Dr. Ethan Mitchell Ross Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ETHAN MITCHELL ROSS MD (NPI 1780848507) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A104876) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Hca Florida Blake Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Accepted Insurance
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
Dr. Ethan Mitchell Ross Md 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
15Medicare enrollment records show Ethan Ross reassigns Medicare billing to 15 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1396287082 (California)
- 13,921 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 1,001 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1386750578 (California)
- 1,204 clinicians in this Medicare group
Gardena, CA 90247
- Reassigned Medicare billing, California enrollment
- 57 clinicians in this Medicare group
Arcadia, CA 91007
- Reassigned Medicare billing, California enrollment
- 71 clinicians in this Medicare group
Redding, CA 96001
- Reassigned Medicare billing, California enrollment
- 63 clinicians in this Medicare group
Yreka, CA 96097
- Reassigned Medicare billing, California enrollment
- 140 clinicians in this Medicare group
Baker City, OR 97814
- Reassigned Medicare billing, Oregon enrollment
- Also billed through NPI 1386636355 (Oregon)
- 47 clinicians in this Medicare group
Elkhart, KS 67950
- Reassigned Medicare billing, Kansas enrollment
- Also billed through NPI 1770511297 (Kansas)
- 25 clinicians in this Medicare group
Wright, WY 82732
- Reassigned Medicare billing, Wyoming enrollment
- 285 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 2
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Florida Blake Hospital
Acute Care Hospitals · Bradenton, FLWesley Medical Center
Acute Care Hospitals · Wichita, KSLake Regional Health System
Acute Care Hospitals · Osage Beach, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90027 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 90027
LOS ANGELES, CA 90027
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 Ethan Ross's NPI number?
The NPI number for Ethan Ross is 1780848507. It was assigned to this individual provider in the NPPES registry on July 10, 2008.
Where is Ethan Ross located?
Ethan Ross practices at 4867 W Sunset Blvd, Los Angeles, CA 90027. The listed phone number is (323) 783-9221.
What is Ethan Ross's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ethan Ross enrolled in Medicare?
Yes. Ethan Ross 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 Ethan Ross's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Ross reassigns Medicare benefits to 15 organizations: Southern California Permanente Medical Group (Los Angeles, CA), Cedars-Sinai Medical Center (Los Angeles, CA), Cep America-California (Los Angeles, CA), Redondo Emergency Physicians, Inc. (Gardena, CA), Michael S. Agron, M.D., Inc. (Arcadia, CA) and 10 more organizations, listed in the Medicare section above. 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 Ethan Ross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ethan Ross accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Kansas, Inc. and Oscar Health Maintenance Organization of Florida list Ethan Ross as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ethan Ross affiliated with any hospitals?
According to CMS data, Ethan Ross is affiliated with Hca Florida Blake Hospital, Wesley Medical Center and Lake Regional Health System.
When was this NPI record last updated?
The NPPES record for Ethan Ross was last updated on June 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Dr. Ethan Mitchell Ross, MD · NPI 1780848507
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 10, 2008.
## Identity
- **NPI:** 1780848507 (Entity type: Individual)
- **Enumerated:** July 10, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A104876 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4867 W SUNSET BLVD, Los Angeles, CA 90027-5969
- **Phone:** (323) 783-9221
## 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:** 15 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1134151657, Los Angeles, CA); Cedars-Sinai Medical Center (NPI 1639172372, Los Angeles, CA); Cep America-California (NPI 1831040823, Los Angeles, CA); Redondo Emergency Physicians, Inc. (NPI 1376834937, Gardena, CA); Michael S. Agron, M.D., Inc. (NPI 1699716100, Arcadia, CA); and 10 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** June 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1780848507) · Data from the CMS NPPES public registry.