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

Medical Oncology

Marwan G. Fakih, MD

Sees patients in Duarte, CA · Newport Beach, CA · South Pasadena, CA · California

Summary

Dr. Marwan G. Fakih, MD is an oncologist at 1500 Duarte Rd, Duarte, CA 91010. Phone: (626) 256-4673. Accepts Medicare assignment. In 2024, Marwan G. Fakih had 281 Original Medicare patients and 949 services. NPI 1861498271. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Oncologist (Medicare lists Medical Oncology)
  • Address: 1500 Duarte Rd, Duarte, CA 91010 · Directions (3 more locations)
  • Phone: (626) 256‑4673
  • Medicare: Accepts Medicare assignment
  • Group practice: City of Hope Medical Foundation
  • Medical school: graduated 1992 (34 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Marwan G. Fakih, 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 Marwan G. Fakih accept Medicare assignment?
Yes. Medicare's clinician data says Marwan G. Fakih 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 Marwan G. Fakih see?
In 2024, CMS data shows 281 Original Medicare patients and 949 services for Marwan G. Fakih. This counts Original Medicare only and measures volume, not quality.
What is Marwan G. Fakih's NPI number?
1861498271. 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 Marwan G. Fakih, 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 patients281
Services billed to Medicare949
Different services or procedures14
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)493 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)343 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)43 services
  4. Telephone medical discussion with physician, 11-20 minutes (99442)17 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).

  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High blood pressure68%
  • High cholesterol62%
  • Arthritis35%
  • Diabetes30%
  • Ischemic heart disease25%

Practice locations

Addresses where Marwan G. Fakih is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marwan G. Fakih as a member of this group (CMS data updated October 2, 2026).

  • City of Hope Medical Foundation982 clinicians in the group

Specialties

Find other Medical Oncology doctors in California →

Other oncologists in Duarte

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

All oncologists in Duarte →

Other clinicians in City of Hope Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1992 (34 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861498271
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians