Dr. Gibran Mahmud, M.D.
What this data tells you about Dr. Mahmud
Dr. Gibran Mahmud is an internal medicine specialist in Centralia, IL, with 18 years of NPI registration. Based on federal Medicare data, Dr. Mahmud performed 299,411 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Mahmud received a total of $19,625 from 77 pharmaceutical and/or device companies across 1142 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mahmud is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary — 2023
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
146,200 | $1 | $4 |
| Pembrolizumab injection (Keytruda) | 26,400 | $43 | $131 |
| Iron infusion (Feraheme) An injection of ferumoxytol used to treat iron deficiency anemia in patients not on dialysis. |
22,440 | $0 | $6 |
| Paclitaxel chemotherapy injection | 16,274 | $0 | $1 |
| Anti-nausea injection (aprepitant) | 13,000 | $1 | $8 |
| Iron sucrose injection (Venofer) An injection of iron sucrose used to replenish iron levels in the body. |
10,600 | $0 | $1 |
| Denosumab injection (Prolia/Xgeva) | 9,060 | $18 | $59 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
5,780 | $0 | $0 |
| Epoetin alfa injection (Procrit) for anemia An injection of epoetin alfa containing 1000 units for use in patients not on end-stage renal disease (ESRD) dialysis. |
5,440 | $6 | $64 |
| Epoetin alfa injection (Retacrit) for anemia An injection of a biosimilar form of epoetin alfa used for non-end-stage renal disease purposes. The dose administered is 1000 units. |
4,520 | $6 | $27 |
| Anti-nausea injection (ondansetron/Zofran) | 3,880 | $0 | $0 |
| Injection, docetaxel, 1 mg | 3,574 | $1 | $11 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
2,589 | $91 | $200 |
| Anti-nausea injection (Aloxi/palonosetron) | 2,490 | $1 | $12 |
| Injection, fulvestrant, 25 mg | 2,100 | $8 | $203 |
| Injection, leucovorin calcium, per 50 mg | 1,686 | $3 | $21 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
1,669 | $11 | $75 |
| Fluorouracil injection, 500 mg Administration of a 500 mg dose of fluorouracil medication via injection. |
1,345 | $2 | $13 |
| Injection, gemcitabine hydrochloride, not otherwise specified, 200 mg | 1,224 | $3 | $27 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,162 | $8 | $24 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,130 | $10 | $73 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
1,102 | $10 | $55 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
992 | $6 | $37 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
925 | $96 | $504 |
| Flow cytometry, additional marker An additional marker is tested during a flow cytometry procedure to analyze DNA or cells. This step adds specific data points to the initial analysis. |
920 | $17 | $149 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
794 | $1 | $2 |
| Manual white blood cell count A laboratory test that involves examining a sample under a microscope to manually count the number of white blood cells present. |
787 | $4 | $27 |
| Complete blood count (CBC), automated An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood. |
787 | $6 | $43 |
| Injection, potassium chloride, per 2 meq | 765 | $0 | $1 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
758 | $2 | $12 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
623 | $21 | $140 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
596 | $1 | $2 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
591 | $1 | $17 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
542 | $63 | $150 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
365 | $6 | $138 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
342 | $8 | $47 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
328 | $47 | $242 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
319 | $7 | $56 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
313 | $21 | $115 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
308 | $9 | $82 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
299 | $24 | $167 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
296 | $27 | $150 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
295 | $13 | $127 |
| Iron level test | 295 | $6 | $55 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
295 | $9 | $76 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
237 | $9 | $71 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
225 | $15 | $115 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
224 | $46 | $214 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
197 | $122 | $350 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
193 | $2 | $12 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 178 | $134 | $2,638 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
166 | $25 | $117 |
| Blood sample collection from implanted device This procedure involves drawing a blood sample directly from a medical device that has been surgically placed in the body. |
147 | $19 | $69 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
147 | $14 | $113 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
144 | $16 | $119 |
| Carcinoembryonic antigen (CEA) level test A blood test that measures the level of carcinoembryonic antigen (CEA) protein. This test is used to monitor certain types of cancer. |
143 | $18 | $138 |
| Intravenous push injection of new drug or substance A healthcare provider injects a new medication or substance directly into a vein using a push technique. |
125 | $41 | $218 |
| IV chemotherapy initiation with community continuation Initiation of an intravenous chemotherapy infusion in a clinic using clinic supplies, with continuation of the infusion in a community setting such as home or assisted living. |
121 | $197 | $514 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
102 | $53 | $190 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 | 89 | $20 | $148 |
| Beta-2 microglobulin level test A blood test that measures the level of beta-2 microglobulin, a protein produced by cells in the body. |
69 | $16 | $153 |
| Irrigation of implanted venous access device This procedure involves flushing an implanted venous access device to clear blockages or maintain patency. It ensures the device remains functional for delivering medications or fluids. |
69 | $17 | $88 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
66 | $29 | $279 |
| PSA test (prostate cancer screening) | 55 | $18 | $125 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
52 | $136 | $392 |
| Principal care management for high-risk disease, first 30 minutes This service covers the initial 30 minutes of clinical staff time per calendar month to manage a single high-risk disease. It is directed by a healthcare professional. |
44 | $47 | $128 |
| Flow cytometry DNA or cell analysis, first marker A laboratory test that uses a laser to analyze cells or DNA by detecting a specific marker on the cell surface or within the cell. |
35 | $51 | $251 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
35 | $4 | $13 |
| Bone marrow biopsy and aspiration A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions. |
29 | $131 | $633 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 125 | 29 | $20 | $154 |
| Automated red blood cell count An automated laboratory test that measures the number of red blood cells in a blood sample. |
26 | $4 | $38 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
26 | $60 | $164 |
| Additional 30 minutes of principal care management This service covers each additional 30 minutes of clinical staff time directed by a healthcare professional for managing a single high-risk disease, billed per calendar month. |
26 | $36 | $97 |
| Venipuncture for blood collection A procedure to draw blood from a vein for medical testing or analysis. |
24 | $60 | $157 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
23 | $91 | $235 |
| Telephone medical discussion, 5-10 minutes A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters. |
23 | $37 | $90 |
| Erythropoietin level test A blood test that measures the amount of erythropoietin, a protein produced by the kidneys that stimulates red blood cell production. |
21 | $18 | $177 |
| Haptoglobin level test A blood test that measures the amount of haptoglobin, a protein in the serum. It helps evaluate red blood cell breakdown. |
21 | $12 | $125 |
| Phosphate level test A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong. |
19 | $5 | $38 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
18 | $5 | $45 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
17 | $3 | $35 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
16 | $13 | $97 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
16 | $4 | $30 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
14 | $9 | $87 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Mahmud is a mixed practice specialist, with above-average Medicare volume (top 0% in IL), with 18 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
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This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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