Medicare Enrolled
Dr. Zahoor Makhdoom, MD
Gastroenterology · Carbondale, IL
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Makhdoom from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Makhdoom
Dr. Zahoor Makhdoom is a gastroenterology specialist in Carbondale, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Makhdoom performed 9,979 Medicare services across 5,328 unique beneficiaries.
Between the years covered by Open Payments, Dr. Makhdoom received a total of $1,614 from 17 pharmaceutical and/or device companies across 88 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Makhdoom 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.
✓ 20 years in practice
▲ Top 1% volume in IL
$1,614 industry payments
Medicare Practice Summary
Medicare Utilization ↗9,979
Medicare services
Top 1% in IL for gastroenterology
5,328
Unique beneficiaries
$85
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~499 Medicare services per year of practice
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 |
|---|---|---|---|
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
3,139 | $0 | $5 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
1,161 | $1 | $15 |
| Meperidine hydrochloride injection, per 100 mg An injection of meperidine hydrochloride, a pain-relieving medication, measured in 100 mg increments. |
1,143 | $6 | $10 |
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
1,093 | $54 | $175 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
557 | $141 | $1,150 |
| Colon polyp removal with endoscope and cautery This procedure removes polyps or growths from the large bowel using a flexible tube with a camera. Electrical cautery is used to stop bleeding during the removal. |
538 | $393 | $1,350 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
516 | $80 | $1,350 |
| Balloon dilation of esophagus, stomach, or upper small bowel, less than 3.0 cm A procedure using a flexible endoscope to widen a narrowed section of the esophagus, stomach, or upper small bowel with a balloon that is less than 3.0 cm in length. |
339 | $804 | $1,350 |
| 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. |
204 | $81 | $120 |
| Special stain test for organisms A laboratory test using special stains on tissue slides to identify microorganisms. The process includes the technical preparation of the slides and a professional interpretation of the results. |
199 | $85 | $175 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
171 | $95 | $1,350 |
| Special tissue stain and interpretation A laboratory test using special stains to examine tissue samples, including the pathologist's review and written report of the findings. |
161 | $61 | $175 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
126 | $140 | $750 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
119 | $236 | $750 |
| External hemorrhoid removal by rubber banding A procedure to remove external hemorrhoids using rubber bands to cut off blood supply. The affected tissue is tied off and eventually falls off. |
109 | $211 | $750 |
| Liver stiffness measurement A non-invasive test that uses ultrasound or similar technology to measure the stiffness of liver tissue. This measurement helps assess the degree of liver fibrosis or scarring. |
95 | $22 | $150 |
| Colonoscopy A diagnostic exam of the lower portion of the large bowel using a flexible endoscope. |
49 | $129 | $750 |
| Endoscopic removal of esophagus, stomach, or small bowel polyps This procedure uses an endoscope and a mechanical snare to remove polyps or growths from the esophagus, stomach, or upper small bowel. |
44 | $241 | $1,250 |
| 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. |
42 | $82 | $250 |
| MRI of abdomen with and without contrast An MRI scan of the abdomen using contrast dye before and after administration to create detailed images of internal structures. |
39 | $262 | $1,000 |
| Injection, fentanyl citrate, 0.1 mg | 22 | $1 | $5 |
| Endoscopy of digestive tract Imaging of the digestive tract performed from the inside using an endoscope. |
21 | $547 | $2,400 |
| Ultrasound scan of organ tissue for measuring elasticity This procedure uses ultrasound technology to assess the stiffness or elasticity of organ tissues. It helps evaluate tissue characteristics without invasive methods. |
19 | $76 | $250 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
17 | $23 | $300 |
| CT scan of large intestine, without contrast A computed tomography scan of the large intestine performed without the use of contrast dye to visualize the colon's structure. |
16 | $169 | $1,000 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
15 | $26 | $300 |
| Injection beneath large bowel lining via endoscope A flexible endoscope is used to inject medication or fluid beneath the lining of the large intestine. |
13 | $81 | $1,350 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
12 | $90 | $750 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$1,614
Total received (2018-2024)
Avg $231/year across 7 years
Top 49% in IL for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
17
Companies
88
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$1,614 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$503
2023
$228
2022
$184
2021
$50
2020
$84
2019
$177
2018
$389
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$218
Ipsen Biopharmaceuticals, Inc
$150
Gilead Sciences, Inc.
$110
AIMMUNE THERAPEUTICS, INC.
$25
Top 3 companies account for 95.1% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$312
Gilead Sciences, Inc.
$219
Medtronic, Inc.
$184
AbbVie, Inc.
$179
Allergan Inc.
$168
Ipsen Biopharmaceuticals, Inc
$150
UCB, Inc.
$106
Braintree Laboratories, Inc.
$102
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$36
CapsoVision, Inc.
$33
AIMMUNE THERAPEUTICS, INC.
$25
GENZYME CORPORATION
$24
Janssen Biotech, Inc.
$24
Shire North American Group Inc
$15
E.R. Squibb & Sons, L.L.C.
$13
AbbVie Inc.
$13
Novo Nordisk Inc
$13
Top 3 companies account for 44.3% of all-time payments
Associated products mentioned in payments ›
CREON · CapsoCam Plus · Cimzia · Creon · DUPIXENT · GATTEX · GI GENIUS · Humira · IQIRVO · LINZESS · MOTOFEN · RINVOQ · SKYRIZI · STELARA · SUPREP BOWEL PREP · SUTAB · Saxenda · TRULANCE · UCERIS · VIBERZI · ZENPEP
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Gastroenterologists within 10 mi
8
Per 100K population
15.2
County median income
$45,572
Nearest hospital
MEMORIAL HOSPITAL OF CARBONDALE
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | 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. Makhdoom is a mixed practice specialist, with above-average Medicare volume (top 1% in IL), with low-engagement industry engagement, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Makhdoom experienced with midazolam injection, per 1 mg?
Based on Medicare claims data, Dr. Makhdoom performed 3,139 midazolam injection, per 1 mg services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Makhdoom receive payments from pharmaceutical companies?
Yes. Dr. Makhdoom received a total of $1,614 from 17 companies across 88 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Makhdoom's costs compare to other gastroenterologists in Carbondale?
Dr. Makhdoom's average Medicare payment per service is $85. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Makhdoom) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): 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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