Summary

Dr. Gibran Mahmud is a board-certified oncologist who also specializes in hospital medicine and internal medicine. With 18 years of experience in patient care, he graduated from Ross University School of Medicine and has dedicated his career to treating cancer patients and providing comprehensive internal medicine services. Dr. Mahmud is fluent in both English and Spanish, enabling him to serve a diverse patient population.

Dr. Mahmud practices at multiple locations throughout Illinois, including Centralia, Fairfield, Salem, and O'Fallon, and maintains affiliations with SSM Health Care. His expertise focuses on treating various forms of lung cancer, including both non-small cell and small cell lung cancer. He performs essential diagnostic procedures such as complete blood counts and chemistry panels to monitor patient health and treatment progress.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 18 years of experience
  • 65 insurance plans accepted
  • speaks English, Spanish
  • Ross University School Of Medicine
  • 3 specialties
  • 8 areas of expertise
  • 3 board certifications
  • 1 hospital affiliation
  • 5 office locations
  • Male

Office Locations

Dr. Gibran Hamid Mahmud has 5 locations

Centralia Oncology Clinic

1052 M L King Dr Ste 2Centralia, IL 62801
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Cancer Care Specialists Of Illinois

213 NW 10th St Ste DFairfield, IL 62837
MonClosed
Tue8:00 am - 4:30 pm
WedClosed
ThuClosed
FriClosed
SatClosed
SunClosed

Salem Township Hospital

1201 Ricker RdSalem, IL 62881
MonClosed
TueClosed
Wed8:00 am - 4:30 pm
ThuClosed
FriClosed
SatClosed
SunClosed

Cancer Care Center Of Ofallon

321 Regency ParkO Fallon, IL 62269
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Hshs Saint Elizabeths Hospital

1 Saint Elizabeth BlvdO Fallon, IL 62269

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Dr. Gibran Hamid Mahmud, MDDr. Timothy Robert Lockso, MDDr. Jeffrey Glenn Shanes, MDDr. David L Neighbors, MD
OncologyInternal MedicineInterventional CardiologySports Medicine
Accepts New Patients Accepts New Patients
1.5 
18 Years of Experience 50 Years of Experience 42 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish Speaks English
Centralia , ILMount Vernon , ILMount Vernon , ILBreese , IL
Med School: Ross University School Of Medicine Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences Med School: University Of Illinois At Chicago College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Gibran Hamid Mahmud

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • ACE
  • Aetna
  • Aetna - Medicare
  • Aetna Better Health
  • Aetna Better Health - Medicaid
  • Aetna Better Health - Medicaid (Managed)
  • Aetna Better Health - Medicare (Advantage HMO)
  • Aflac
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - EPO
  • Blue Cross Blue Shield - PPO
  • Blue Cross Blue Shield of Illinois
  • BLUE CROSS of CALIFORNIA
  • Blue Shield of California
  • CHAMPVA
  • CHAMPVA - HMO
  • Cigna
  • Companion Life
  • Dean Health Plan
  • Dean Health Plan - HMO
  • Dean Health Plan - PPO
  • ESSENCE Healthcare
  • ESSENCE Healthcare - Medicare
  • ESSENCE Healthcare - Medicare (Advantage HMO)
  • GEHA
  • Health Alliance
  • Healthlink
  • Healthlink - HMO
  • Healthlink - PPO
  • Humana
  • Humana - Medicare
  • Humana - Medicare (Advantage HMO)
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medical Associates Health Plans
  • Medicare
  • Medicare - Medicare
  • Medicare - Medicare (Advantage HMO)
  • Meridian Health Plan
  • Meridian Health Plan - Medicaid (Managed)
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicaid (Managed)
  • Molina Healthcare - Medicare (Advantage HMO)
  • Mutual of Omaha
  • Optum Health
  • Oscar Health Insurance
  • Palmetto GBA
  • Palmetto GBA - Medicare
  • Premera Blue Cross
  • State Farm
  • Superior HealthPlan
  • The Health Plan of the Upper Ohio Valley, Inc.
  • Three Rivers Providers Network (TRPN)
  • Transamerica
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • US Health Group
  • Wellcare
  • WPS Health Plan

Medical Specialties

Dr. Gibran Hamid Mahmud has the following 3 specialties

Specialty Expertise

Dr. Gibran Hamid Mahmud has the following 8 areas of expertise

  • Check-up
  • Heartburn
  • Hospital Medicine
  • Immunization
  • Internal Medicine
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

18 Years Experience

MEDICAL LICENSE

Medical Doctor, Illinois, 2026, Active

EDUCATION & TRAINING

Medical School

Ross University School Of MedicineGraduated in 2008

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Frequently Asked Questions

Does Dr. Gibran Mahmud accept my insurance?
You can see the insurance plans that Dr. Gibran Mahmud accepts on their Vitals profile.
What languages does Dr. Gibran Mahmud speak?
Dr. Gibran Mahmud speaks English and Spanish.
Which hospitals is Dr. Gibran Mahmud affiliated with?
Dr. Gibran Mahmud is affiliated with Ssm Health Care.
How can I make an appointment with Dr. Gibran Mahmud?
You can find contact information for Dr. Gibran Mahmud here on Vitals.
Is Dr. Gibran Mahmud accepting new patients?
Dr. Gibran Mahmud is accepting new patients on Vitals. View Dr. Gibran Mahmud's profile on Vitals to make an appointment.

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