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Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Gibran Mahmud
๐ŸŽ—๏ธ
MDIndividual

Gibran Mahmud, M.D.

NPI: 1518132489
Centralia, IL
10 years of data
Hematology-Oncology
$5.9M
Total Payments
42.6K
Beneficiaries
156.0K
Services
3.67x
Markup Ratio

Peer Comparison

97th
percentile in specialty
This provider$5.9M
Specialty median$339.6K

๐Ÿ“‹ Key Findings

1Billed $5.9M over 10 years
23.67x markup ratio (above median)
397th percentile in Hematology-Oncology by payments
462 services/day โ€” unusually high
5Payments surged 419% in 2017
612 procedures with >3x markup

This provider averages 62 services per working day

Based on 156.0K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $5.9M in total Medicare payments ranks in the 97th percentile of Hematology-Oncology providers nationally.

Averaging 62 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 768% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

๐Ÿ“ˆ

Notable: Payments increased 419% in 2017

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$225.40$85.972.62x$139.43$70.4K850568
2015$234.61$96.972.42x$137.64$96.8K1.2K733
2016$154.53$57.052.71x$97.48$132.5K2.0K1.0K
2017$327.82$83.553.92x$244.27$688.1K20.7K5.1K
2018$313.53$77.584.04x$235.95$777.4K21.1K5.5K
2019$301.65$73.724.09x$227.93$988.9K24.2K5.7K
2020$333.52$67.934.91x$265.59$965.1K23.4K5.9K
2021$342.44$58.615.84x$283.83$935.8K22.2K5.9K
2022$176.96$33.055.35x$143.91$600.2K19.1K5.9K
2023$142.96$25.945.51x$117.02$610.9K21.3K6.3K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$1.4M
15.9K services$85.57/svc2.22x markup
J2505Injection, pegfilgrastim, 6 mgโš  4.7x markup
$927.2K
295 services$3.1K/svc4.70x markup
G9678Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation
$565.5K
3.6K services$159.15/svc1.01x markup
96413Infusion of chemotherapy into a vein up to 1 hourโš  4.9x markup
$546.9K
5.3K services$102.87/svc4.87x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$267.3K
4.7K services$57.05/svc2.27x markup
G0498Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l
$214.8K
1.1K services$194.03/svc1.54x markup
99204New patient office or other outpatient visit, typically 45 minutes
$145.9K
1.2K services$120.96/svc2.50x markup
96365Infusion into a vein for therapy, prevention, or diagnosis up to 1 hourโš  4.1x markup
$143.9K
2.8K services$52.19/svc4.07x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$136.8K
1.7K services$81.19/svc2.65x markup
96367Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hourโš  6.0x markup
$109.4K
4.7K services$23.18/svc5.99x markup
96372Injection beneath the skin or into muscle for therapy, diagnosis, or preventionโš  4.5x markup
$92.8K
7.5K services$12.34/svc4.45x markup
99232Subsequent hospital inpatient care, typically 25 minutes per dayโš  3.1x markup
$89.3K
1.6K services$56.58/svc3.13x markup
80053Blood test, comprehensive group of blood chemicalsโš  6.6x markup
$87.6K
7.9K services$11.11/svc6.57x markup
96417Infusion of different chemotherapy drug or substance into a vein up to 1 hourโš  4.8x markup
$82.8K
1.6K services$50.34/svc4.81x markup
99222Initial hospital inpatient care, typically 50 minutes per day
$73.4K
691 services$106.22/svc2.99x markup
96360Hydration infusion into a vein 31 minutes to 1 hourโš  5.7x markup
$66.2K
2.2K services$29.54/svc5.65x markup
96375Injection of different drug or substance into a vein for therapy, diagnosis, or preventionโš  5.8x markup
$58.8K
4.5K services$13.01/svc5.76x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$55.7K
360 services$154.77/svc2.59x markup
96411Infusion of different chemotherapy drug or substance into a veinโš  4.9x markup
$42.5K
964 services$44.10/svc4.94x markup
96374Injection of drug or substance into a vein for therapy, diagnosis, or preventionโš  5.0x markup
$41.1K
1.4K services$30.30/svc4.95x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes15.9K$1.4M$85.572.22x
J2505Injection, pegfilgrastim, 6 mg295$927.2K$3.1K4.70x
G9678Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation3.6K$565.5K$159.151.01x
96413Infusion of chemotherapy into a vein up to 1 hour5.3K$546.9K$102.874.87x
99213Established patient office or other outpatient visit, typically 15 minutes4.7K$267.3K$57.052.27x
G0498Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l1.1K$214.8K$194.031.54x
99204New patient office or other outpatient visit, typically 45 minutes1.2K$145.9K$120.962.50x
96365Infusion into a vein for therapy, prevention, or diagnosis up to 1 hour2.8K$143.9K$52.194.07x
99233Subsequent hospital inpatient care, typically 35 minutes per day1.7K$136.8K$81.192.65x
96367Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hour4.7K$109.4K$23.185.99x
96372Injection beneath the skin or into muscle for therapy, diagnosis, or prevention7.5K$92.8K$12.344.45x
99232Subsequent hospital inpatient care, typically 25 minutes per day1.6K$89.3K$56.583.13x
80053Blood test, comprehensive group of blood chemicals7.9K$87.6K$11.116.57x
96417Infusion of different chemotherapy drug or substance into a vein up to 1 hour1.6K$82.8K$50.344.81x
99222Initial hospital inpatient care, typically 50 minutes per day691$73.4K$106.222.99x
96360Hydration infusion into a vein 31 minutes to 1 hour2.2K$66.2K$29.545.65x
96375Injection of different drug or substance into a vein for therapy, diagnosis, or prevention4.5K$58.8K$13.015.76x
99223Initial hospital inpatient care, typically 70 minutes per day360$55.7K$154.772.59x
96411Infusion of different chemotherapy drug or substance into a vein964$42.5K$44.104.94x
96374Injection of drug or substance into a vein for therapy, diagnosis, or prevention1.4K$41.1K$30.304.95x

Markup Analysis

Charge-to-Payment Ratio

3.67x

This provider submits charges 3.67 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.67x means for every $100 Medicare pays, this provider initially charges $367. This is higher than the national average.

Location

Centralia, IL

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Similar Providers

Other Hematology-Oncology providers in IL for peer comparison.

Gibran Mahmud (you)
$5.9M
Pramern Sriratana, M.D.
$33.5M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Pramern Sriratana, M.D.Normal, IL$33.5Mโœ“ Clear

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Data Sources

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

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