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MR. RICARDO ANGELO MESTRES III M.D.
NPI 1841579414
Emergency Medicine in Los Angeles, CA

Active since August 12, 2011PECOS Enrolled
1200 N STATE ST RM 1018, DEPT OF EMERGENCY MEDICINE, LOS ANGELES, CA 90033(323) 226-6937 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mr. Ricardo Angelo Mestres Iii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. RICARDO ANGELO MESTRES III M.D. (NPI 1841579414) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A117564) and active in the NPI registry since August 2011. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841579414
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMR. RICARDO ANGELO MESTRES IIICredential: M.D.
Location Address1200 N STATE ST RM 1018, DEPT OF EMERGENCY MEDICINELos Angeles, CA 90033-1029
Mailing Address151 Voyage MallMarina Del Rey, CA 90292-7296 · (310) 600-0141
Phone(323) 226-6937
Sole ProprietorYes
Enumeration DateAugust 12, 2011
Last NPPES UpdateNovember 29, 2021
NPPES CertifiedNovember 29, 2021
✔ NPI 1841579414 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A117564
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1200 N STATE ST RM 1018, Los Angeles, CA 90033
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Ricardo Angelo Mestres Iii M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ricardo Mestres reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
5.5 mi
Health Maintenance Organization
4760 W SUNSET BLVD
Los Angeles, CA 90027
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1134151657 (323) 783-4011

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 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.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Ricardo Mestres's NPI number?

The NPI number for Ricardo Mestres is 1841579414. It was assigned to this individual provider in the NPPES registry on August 12, 2011.

Where is Ricardo Mestres located?

Ricardo Mestres practices at 1200 N State St Rm 1018 Dept Of Emergency Medicine, Los Angeles, CA 90033. The listed phone number is (323) 226-6937.

What is Ricardo Mestres's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Ricardo Mestres enrolled in Medicare?

Yes. Ricardo Mestres is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ricardo Mestres's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ricardo Mestres reassigns Medicare benefits to Southern California Permanente Medical Group (Los Angeles, CA). The 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 Ricardo Mestres'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 Ricardo Mestres was last updated on November 29, 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.