Dr. Gregory Dumanian, MD
What this data tells you about Dr. Dumanian
Dr. Gregory Dumanian is a vascular surgery specialist in Chicago, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Dumanian performed 379 Medicare services across 309 unique beneficiaries.
Between the years covered by Open Payments, Dr. Dumanian received a total of $69,633 from 26 pharmaceutical and/or device companies across 113 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular surgery. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Dumanian 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
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 |
|---|---|---|---|
| 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. |
83 | $69 | $219 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
80 | $45 | $132 |
| New patient office visit, 15-29 minutes An initial office visit for a new patient lasting 15 to 29 minutes. This code is used when the total time spent on the date of the encounter meets this duration threshold. |
68 | $54 | $225 |
| Muscle graft to trunk A surgical procedure involving the creation and placement of a muscle graft onto the trunk. |
46 | $1,040 | $9,562 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
39 | $93 | $330 |
| Nerve transfer to injured nerve, stage 1 of 2 A surgical procedure where a healthy nerve is connected to an injured nerve to restore function. This is the first stage of a two-stage process. |
25 | $634 | $5,038 |
| Initial repair of large abdominal sliding hernia Surgical repair of a sliding hernia in the abdomen that is larger than 10 centimeters. This procedure involves correcting the hernia defect during the initial operation. |
14 | $551 | $4,495 |
| Intermediate wound repair, face or mouth, 2.5 cm or less A medical procedure to close a wound on the face, ears, eyelids, nose, lips, or mouth that is 2.5 centimeters or smaller. This type of repair involves more than simple closure but is less complex than a major repair. |
13 | $246 | $1,245 |
| Reinforcement of fascia of abdominal wall with synthetic implant | 11 | $268 | $3,422 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
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 ›
The majority of payments (56%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 3% for vascular surgery in IL.
Geographic Context
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. Dumanian is a clinical cardiology specialist, with above-average Medicare volume (top 13% in IL), with consulting-driven industry engagement in the top 3% of IL peers, 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
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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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