Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Mounir El Fatmi, MD

Works at hospitals in Ventura, CA · Oxnard, CA · California

Summary

Dr. Mounir El Fatmi, MD is an internal medicine doctor at 2309 Antonio Ave, Camarillo, CA 93010. Phone: (201) 658-8265. Accepts Medicare assignment. In 2024, Mounir El Fatmi had 152 Original Medicare patients and 3,001 services. NPI 1356406789. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Mounir El Fatmi, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mounir El Fatmi accept Medicare assignment?
Yes. Medicare's clinician data says Mounir El Fatmi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Mounir El Fatmi see?
In 2024, CMS data shows 152 Original Medicare patients and 3,001 services for Mounir El Fatmi. This counts Original Medicare only and measures volume, not quality.
What is Mounir El Fatmi's NPI number?
1356406789. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Mounir El Fatmi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients152
Services billed to Medicare3,001
Different services or procedures37
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Removal of skin and tissue, 20.0 sq cm or less (11042)505 services
  2. Removal of skin and tissue, each additional 20.0 sq cm or less (11045)499 services
  3. Removal of muscle and/or tissue, 20.0 sq cm or less (11043)368 services
  4. Removal of muscle and/or tissue, each additional 20.0 sq cm or less (11046)336 services
  5. Management of oxygen chamber therapy (99183)255 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis56%
  • Diabetes54%
  • Chronic kidney disease49%
  • Ischemic heart disease48%

Hospitals where Mounir El Fatmi works

Medicare's Facility Affiliation Data lists Mounir El Fatmi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Mounir El Fatmi is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Camarillo

Clinicians with the same Medicare primary specialty in Camarillo, CA — not a recommendation.

All internal medicine doctors in Camarillo →

Clinician information

CredentialMD
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356406789
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians