MICHAEL RYAN PEREZ MD
NPI 1851754196
Emergency Medicine in Los Angeles, CA
About Michael Ryan Perez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL RYAN PEREZ MD (NPI 1851754196) is an individual emergency medicine provider in Los Angeles, California, licensed in California (151861) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of University Of California, San Francisco School Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Michael Ryan Perez 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
5Medicare enrollment records show Michael Perez reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Santa Monica, CA 90404
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1386750578 (California)
- 1,204 clinicians in this Medicare group
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Torrance, CA 90503
- Reassigned Medicare billing, California enrollment
- 69 clinicians in this Medicare group
Newport Beach, CA 92663
- Reassigned Medicare billing, California enrollment
- 61 clinicians in this Medicare group
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 200 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 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Michael Perez's NPI number?
The NPI number for Michael Perez is 1851754196. It was assigned to this individual provider in the NPPES registry on April 4, 2016.
Where is Michael Perez located?
Michael Perez practices at 757 Westwood Plz Ste 1517, Los Angeles, CA 90095. The listed phone number is (310) 825-9111.
What is Michael Perez's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Michael Perez enrolled in Medicare?
Yes. Michael Perez 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 Michael Perez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Perez reassigns Medicare benefits to 5 organizations: Cep America - California (Santa Monica, CA), Southern California Permanente Medical Group (Los Angeles, CA), Emergency Specialist Physicians Medical Associates, Inc (Torrance, CA), Emergency Physicians Of Orange County (Newport Beach, CA) and Pinnacle Emergency Physicians Of Bakersfield, A Professional Corp (Bakersfield, 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 Michael Perez'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 Michael Perez was last updated on April 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Michael Ryan Perez, MD · NPI 1851754196
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 4, 2016.
## Identity
- **NPI:** 1851754196 (Entity type: Individual)
- **Enumerated:** April 4, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 151861 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 757 WESTWOOD PLZ STE 1517, Los Angeles, CA 90095-1029
- **Phone:** (310) 825-9111
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Cep America - California (NPI 1063081545, Santa Monica, CA); Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA); Emergency Specialist Physicians Medical Associates, Inc (NPI 1518917913, Torrance, CA); Emergency Physicians Of Orange County (NPI 1912771569, Newport Beach, CA); Pinnacle Emergency Physicians Of Bakersfield, A Professional Corp (NPI 1386980415, Bakersfield, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** April 1, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1851754196) · Data from the CMS NPPES public registry.