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Rheumatology

George Gennaoui, DO

Works at hospitals in Dearborn, MI · Taylor, MI · Tell City, IN · Michigan, Indiana

Summary

Dr. George Gennaoui, DO is a rheumatologist at 18101 Oakwood Blvd, Dearborn, MI 48124. Phone: (763) 236-7130. Accepts Medicare assignment. In 2024, George Gennaoui had 263 Original Medicare patients and 29,677 services. NPI 1861928681. 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 George Gennaoui, 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 George Gennaoui accept Medicare assignment?
Yes. Medicare's clinician data says George Gennaoui 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 George Gennaoui see?
In 2024, CMS data shows 263 Original Medicare patients and 29,677 services for George Gennaoui. This counts Original Medicare only and measures volume, not quality.
What is George Gennaoui's NPI number?
1861928681. 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 George Gennaoui, 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 patients263
Services billed to Medicare29,677
Different services or procedures67
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)1,500 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)328 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)163 services
  4. Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg (J0702)142 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)79 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).

  • Arthritis75%
  • High blood pressure73%
  • High cholesterol73%
  • Depression30%
  • Chronic kidney disease30%
  • Diabetes29%

Hospitals where George Gennaoui works

Medicare's Facility Affiliation Data lists George Gennaoui 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 George Gennaoui is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists George Gennaoui as a member of these groups (CMS data updated October 2, 2026).

  • Allina Health System3,842 clinicians in the group
  • Christiana Care Health Services Inc1,483 clinicians in the group
  • Beaumont Medical Group- Specialty Services847 clinicians in the group
  • Perry County Memorial Hospital28 clinicians in the group

Specialties

Find other Rheumatology doctors in Michigan →

Other rheumatologists in Dearborn

Clinicians with the same Medicare primary specialty in Dearborn, MI — not a recommendation.

All rheumatologists in Dearborn →

Other clinicians in Allina Health System

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

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861928681
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