Ricardo Mestres, M.D.
NPI 1841579414 · Emergency Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ricardo Mestres, M.D. is a Emergency Medicine Physician provider in Los Angeles, CA (NPI 1841579414).
Provider details
- NPI number
- 1841579414
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A117564 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | 22 |
| Ondansetron Hcl | 20 | 20 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 11 | 11 |
| Cefpodoxime Proxetil | 11 | 11 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 11 | 11 |
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 11 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-08-12
- Last updated
- 2021-11-29
- Certified
- 2021-11-29
Frequently asked questions
- What is Ricardo Mestres's NPI number?
- Ricardo Mestres's National Provider Identifier (NPI) is 1841579414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ricardo Mestres's specialty?
- Ricardo Mestres is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ricardo Mestres located?
- Ricardo Mestres's practice location on file with NPPES is 1200 N State St Rm 1018, Los Angeles, CA 90033-1029.
- What is Ricardo Mestres's phone number?
- The practice phone number listed in the NPPES registry for Ricardo Mestres is (323) 226-6937.
- Does Ricardo Mestres accept Medicare?
- Ricardo Mestres is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ricardo Mestres's NPI active?
- Yes — Ricardo Mestres's NPI (1841579414) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.