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Internal Medicine

Fady M. Elshikh, MD

Works at hospitals in Greenbrae, CA · Novato, CA · Sonoma, CA … · California

Summary

Dr. Fady M. Elshikh, MD is an internal medicine doctor at 250 Bon Air Rd, Greenbrae, CA 94904. Phone: (415) 925-7000. Accepts Medicare assignment. In 2024, Fady M. Elshikh had 372 Original Medicare patients and 416 services. NPI 1811371081. 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 Fady M. Elshikh, 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 Fady M. Elshikh accept Medicare assignment?
Yes. Medicare's clinician data says Fady M. Elshikh 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 Fady M. Elshikh see?
In 2024, CMS data shows 372 Original Medicare patients and 416 services for Fady M. Elshikh. This counts Original Medicare only and measures volume, not quality.
What is Fady M. Elshikh's NPI number?
1811371081. 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 Fady M. Elshikh, 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 patients372
Services billed to Medicare416
Different services or procedures4
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)408 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%
  • Diabetes59%
  • Chronic kidney disease56%
  • Ischemic heart disease51%
  • Arthritis44%

Hospitals where Fady M. Elshikh works

Medicare's Facility Affiliation Data lists Fady M. Elshikh 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.

  • Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050360
  • Novato Community HospitalNovato, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050131
  • Sonoma Valley HospitalSonoma, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050090
  • UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050454

Practice locations

Addresses where Fady M. Elshikh is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Fady M. Elshikh as a member of this group (CMS data updated October 2, 2026).

  • Galen Inpatient Physicians PC1,077 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Greenbrae

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

All internal medicine doctors in Greenbrae →

Other clinicians in Galen Inpatient Physicians PC

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811371081
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