Mazen Najjar, M.D.

Infectious Disease Internal Medicine

Internal Medicine

Also practices: INTERNAL MEDICINE

(810) 606-7125Grand Blanc, MI
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

With over 35 years in internal medicine, Mazen Najjar, M.D. is a long-established infectious disease specialist in Grand Blanc. He has been in practice for 35+ years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and kidney disease (per CMS data).

1 of 82 Internal Medicine providers in MISee all Internal Medicine in Grand Blanc35+ years experienceNPI since 2006

Older · 6788dNPPES updated 2007-10-05 · verify on CMS

Contact & Location

Practice Location

4644 Genesys Pkwy, Grand Blanc, MI 48439-8067

Fax: (810) 606-7131
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

517

Unique beneficiaries

High volume

Prescription Recipients

178

Patients prescribed

Prescriptions Written

896

Total claims

Total Medicare drug cost: $785k

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Chronic Kidney Disease.

Hypertension
75%

High blood pressure — a leading risk factor for heart disease and stroke

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Chronic Kidney Disease
58%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

Heart Failure
56%

The heart cannot pump blood efficiently enough to meet the body's needs

Arthritis
56%

Joint inflammation causing pain, swelling, and stiffness

Diabetes
53%

A condition where the body cannot properly regulate blood sugar levels

Ischemic Heart Disease
53%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Mood Disorders
51%

Conditions affecting emotional state, including depression and bipolar disorder

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$515 received from industry

32 transactions reported in 2024 ·Moderate tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Mazen Najjar's NPI.

Community Context

Social Vulnerability Index: 0.54 / 1.00

Moderate vulnerability

He practices in a community where the CDC measures social vulnerability across socioeconomic status, household composition, racial/ethnic minority status, and housing/transportation factors. A higher index indicates more residents may face barriers accessing care.

Source: CDC/ATSDR Social Vulnerability Index.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. 35 years in practice

    Senior practitioner

Internal MedicineInfectious Disease in Grand BlancAllopathic & Osteopathic Physicians

Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, antibiotic-resistant infections (MRSA), post-surgical infections, and travel-related illnesses. They also provide pre-travel vaccination counseling and manage infections in immunocompromised patients.

Taxonomy: 207RI0200X

Practice Footprint

Mailing address

3495 S Center Rd, Burton, MI 48519-1455

Differs from practice location

Virtual Infectious Disease Care With Mazen Najjar

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Mazen Najjar for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Grand Blanc required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Mazen Najjar

Dr. Najjar is listed as active in the NPI registry with telehealth listed in Grand Blanc, MI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (810) 606-7125.

Verified across 7 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator · HRSA HPSA · CDC SVI. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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