NIRESH PERERA MD
NPI 1922689884
Emergency Medicine in Los Angeles, CA
About Niresh Perera Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NIRESH PERERA MD (NPI 1922689884) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A189078) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
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
Niresh Perera 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
3Medicare enrollment records show Niresh Perera reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 135 clinicians in this Medicare group
Santa Monica, CA 90405
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1780877613 (California)
- 1,939 clinicians in this Medicare group
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90095 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.
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 Niresh Perera's NPI number?
The NPI number for Niresh Perera is 1922689884. It was assigned to this individual provider in the NPPES registry on April 20, 2021.
Where is Niresh Perera located?
Niresh Perera practices at 757 Westwood Plz Ste 1517, Los Angeles, CA 90095. The listed phone number is (310) 282-5211.
What is Niresh Perera's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Niresh Perera enrolled in Medicare?
Yes. Niresh Perera 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 Niresh Perera's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Niresh Perera reassigns Medicare benefits to 3 organizations: Regents Of The Univ Of Ca Emer Med (Los Angeles, CA), County Of Los Angeles (Santa Monica, CA) and Southern California Permanente Medical Group (Los Angeles, 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 Niresh Perera'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 Niresh Perera was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Niresh Perera, MD · NPI 1922689884
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 20, 2021.
## Identity
- **NPI:** 1922689884 (Entity type: Individual)
- **Enumerated:** April 20, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A189078 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 757 WESTWOOD PLZ STE 1517, Los Angeles, CA 90095-2004
- **Phone:** (310) 282-5211
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The Univ Of Ca Emer Med (NPI 1104889138, Los Angeles, CA); County Of Los Angeles (NPI 1235323080, Santa Monica, CA); Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1922689884) · Data from the CMS NPPES public registry.