George Brian Gennaoui, D.O
Rheumatology Physician · Dearborn, MI
George Brian Gennaoui, D.O is a rheumatology physician with a practice address in Dearborn, Michigan, and NPI 1861928681, issued on May 11, 2017. Check the license (Michigan 5101027962, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- George Brian Gennaoui
- Credential
- D.O
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 5101027962 MI
02008468A IN
79972 MN
34.015633 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4700 Schaefer RD Ste 270, Dearborn, MI 48126
- Phone
- (947) 523-4670
- Enumerated
- May 11, 2017
- Record last updated
- Jul 31, 2026
- Fax
- (313) 943-2915
- Medicare enrollment
- Enrolled (PECOS I20251001001283); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 226 in Michigan → Look up another NPI →
Verify George Brian Gennaoui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101027962Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% more Medicare Part D claims than the average rheumatology physician in 2024
2,700 Medicare Part D claims for 582 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 290 claims were for opioids.
Most prescribed
- Prednisone425 claims
- Methotrexate244 claims
- Tizanidine Hcl196 claims
- Tramadol Hcl182 claims
- Hydroxychloroquine Sulfate180 claims
- Duloxetine Hcl150 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,237.16
52 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
4 hospitals and group practices
- Perry County Memorial HospitalTell City, IN · Critical Access Hospitals2 of 5 stars
- Allina Health SystemCoon Rapids, MN
- Beaumont Medical Group- Specialty ServicesDearborn, MI
- Christiana Care Health Services IncWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
George Brian Gennaoui among 226 rheumatology physician records in Michigan
George Brian Gennaoui, D.O is one of 226 rheumatology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 90% of them.
- NPI issued2017 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2017 · median 2003 among the 156 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Michigan
There are 226 rheumatology physician records in Michigan.
All 226 in Michigan → Every provider in Dearborn → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Imad Alazem, M.D.Dearborn, MI 481261265402630
- Joel Shavell, DODearborn, MI 481261346296951
- Luis Torregrosa, MDDearborn, MI 481261891765608
- Ali Dagher, M.D.Dearborn, MI 481241790730257
- Paul Goerke, D.O.Dearborn, MI 481241538135256
- Fazleomar Mahmood, MDChelsea, MI 481181275585200
- James Dowd, MDBrighton, MI 481161750482162
- Anne Carlton, MDAnn Arbor, MI 481091003436031
Common questions
What is George Brian Gennaoui, D.O's NPI number?
George Brian Gennaoui, D.O's National Provider Identifier (NPI) is 1861928681, issued on May 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is George Brian Gennaoui, D.O located?
The NPPES record lists a practice address at 4700 Schaefer RD Ste 270, Dearborn, MI, 48126. Phone: (947) 523-4670. Providers update this record themselves, so call before visiting.
How can I verify George Brian Gennaoui, D.O's license?
NPPES lists Michigan license number 5101027962, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does George Brian Gennaoui, D.O prescribe under Medicare Part D?
In 2024, George Brian Gennaoui, D.O had 2,700 Medicare Part D claims for 582 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.