MISSION VIEJO EMERGENCY MEDICAL ASSOCIATES
NPI 1073542916
Emergency Medicine in Mission Viejo, CA
About Mission Viejo Emergency Medical Associates NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MISSION VIEJO EMERGENCY MEDICAL ASSOCIATES (NPI 1073542916) is a healthcare organization registered as an emergency medicine in Mission Viejo, California and active in the NPI registry since July 2006. The organization lists Jennifer Chastain, Director Of Provider Enrollment, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mission Viejo Emergency Medical Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
86Medicare enrollment records show 86 clinicians reassign Medicare billing to Mission Viejo Emergency Medical Associates, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 20 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 4
Nearest to this location (20)
See all 86San Juan Capistrano, CA 92675
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mission Viejo Emergency Medical Associates's NPI number?
The NPI number for Mission Viejo Emergency Medical Associates is 1073542916. It was assigned to this organization in the NPPES registry on July 2, 2006.
Where is Mission Viejo Emergency Medical Associates located?
Mission Viejo Emergency Medical Associates is located at 27700 Medical Center Rd, Mission Viejo, CA 92691. The listed phone number is (844) 474-4019.
What is Mission Viejo Emergency Medical Associates's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mission Viejo Emergency Medical Associates enrolled in Medicare?
Yes. Mission Viejo Emergency Medical Associates is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mission Viejo Emergency Medical Associates?
According to the CMS Revalidation Reassignment List (October 2026 release), 86 clinicians in 4 Medicare specialties reassign their Medicare billing to Mission Viejo Emergency Medical Associates. A 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 the clinician's services. The largest specialties are Emergency Medicine (74), Nurse Practitioner (10) and Family Practice (1). Of these, 9 practice at this address and 20 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mission Viejo Emergency Medical Associates was last updated on February 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.