GEORGE BRIAN GENNAOUI, D.O — NPI 1861928681 (Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician) in DEARBORN, MI)

CMS-1500 Box 24J / 33a • NPI

1861928681

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

207RR0500X (CMS 11)

Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician)

Box 32 Service Location & ZIP+4

4700 SCHAEFER RD STE 270, DEARBORN, MI, 48126-3743

✓ 9-Digit EDI 837 ZIP+4 (48126-3743)

Practice Phone & Referral Fax

(947) 523-4670

Fax: (313) 943-2915

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1861928681 (GEORGE BRIAN GENNAOUI, D.O) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).

CMS Medicare Order & Referring PECOS Eligibility

This practitioner does not currently appear in the CMS individual Order & Referring PECOS file (may practice in pediatrics, commercial-only networks, or hospital-employed settings).

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1861928681` (NPI-1 Individual Practitioner)
Provider / Legal Name	GEORGE BRIAN GENNAOUI, D.O
Plain-English Specialty	Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician) NUCC Code: `207RR0500X` (Internal Medicine, Rheumatology)
Certifying / Licensing Body	American Board of Internal Medicine (ABIM)
Practice Location Address	4700 SCHAEFER RD STE 270, DEARBORN, MI, 48126-3743
Practice Telephone / Fax	Tel: (947) 523-4670 \| Fax: (313) 943-2915
Administrative Mailing Address	26901 BEAUMONT BLVD STE 3D, SOUTHFIELD, MI, 48033-3849
Enumeration & Last Sync	Enumerated: 2017-05-11 \| CMS Record Updated: 2026-07-31

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

4700 SCHAEFER RD STE 270, DEARBORN, MI, 48126-3743

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Plain-English Taxonomy & CMS Crosswalk (207RR0500X)

What Does Taxonomy Code 207RR0500X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 207RR0500X translates to:
"Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician)"

CMS-1500 Medicare Specialty Crosswalk: CMS Code 11 (Physician/Internal Medicine) • CMS Code 66 (Physician/Rheumatology)
Certifying / Accrediting Authority: American Board of Internal Medicine (ABIM)
Clinical Scope: Managing multiple adult chronic conditions (diabetes, high blood pressure, high cholesterol, thyroid disorders) or investigating unexplained adult symptoms.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (GEORGE BRIAN GENNAOUI, D.O)

Typical CPT / Diagnostic Procedures:

Complex Multi-System Adult Diagnostic Workup (CPT 99204–99215)
Preoperative Medical Risk Assessment & Cardiac Clearance
Chronic Kidney, Hepatic & Metabolic Panel Interpretation
Adult Inpatient Hospitalist Management & Discharge Coordination

Common Therapeutic Classes:

Antihypertensives (ACE Inhibitors, ARBs, Calcium Channel Blockers, Thiazides)
Oral Antidiabetic Agents, Basal/Bolus Insulins & Lipid-Lowering Statins
Direct Oral Anticoagulants (Apixaban, Rivaroxaban) & Antiplatelets
Levothyroxine (Hypothyroidism) & Proton Pump Inhibitors (Pantoprazole)

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English Description	State License & Primary Status
`207RR0500X` — Internal Medicine, Rheumatology Plain English: Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician)	State: MN \| License: `79972` \| Primary: Secondary
`207RR0500X` — Internal Medicine, Rheumatology Plain English: Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician)	State: IN \| License: `02008468A` \| Primary: Secondary
`207RR0500X` — Internal Medicine, Rheumatology Plain English: Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician)	State: MI \| License: `5101027962` \| Primary: Yes (Primary)
`207RR0500X` — Internal Medicine, Rheumatology Plain English: Board-Certified Internist (Adult Diagnostic & Chronic Disease Physician)	State: OH \| License: `34.015633` \| Primary: Secondary

Medical Billing, RCM & Hospital Credentialing Teams:

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GEORGE BRIAN GENNAOUI, D.O (NPI #1861928681)