Dr. Sami Hamamji, M.D.
What this data tells you about Dr. Hamamji
Dr. Sami Hamamji is a surgery specialist in Orange, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Hamamji performed 302 Medicare services across 282 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hamamji received a total of $3,986 from 10 pharmaceutical and/or device companies across 33 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in surgery. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Hamamji 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 |
|---|---|---|---|
| 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. |
81 | $59 | $167 |
| 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. |
78 | $45 | $113 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
42 | $109 | $236 |
| Laparoscopic gallbladder removal Surgical removal of the gallbladder using a small camera and instruments inserted through tiny incisions in the abdomen. |
30 | $543 | $1,867 |
| Groin hernia repair, age 5 or older Surgical repair of a hernia in the groin area for patients aged 5 years or older. |
20 | $441 | $1,060 |
| Endoscopic groin hernia repair A surgical procedure to repair a groin hernia using an endoscope, which allows the surgeon to view and operate through small incisions. |
19 | $415 | $1,274 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
18 | $41 | $100 |
| Initial repair of sliding abdominal hernia, less than 3 cm Surgical repair of a sliding hernia in the abdomen that is smaller than 3 centimeters. This is the first-time repair of this specific hernia. |
14 | $221 | $800 |
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 (75%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in surgery and does not inherently indicate bias, but patients may wish to be aware.
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. Hamamji is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement, with 19 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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