Dr. Karen Chojnacki, M.D.
What this data tells you about Dr. Chojnacki
Dr. Karen Chojnacki is a surgery specialist in Philadelphia, PA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Chojnacki performed 319 Medicare services across 304 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chojnacki received a total of $4,418 from 5 pharmaceutical and/or device companies across 18 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in surgery. 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. Chojnacki 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. |
80 | $65 | $190 |
| 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. |
64 | $83 | $275 |
| 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. |
53 | $127 | $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. |
35 | $101 | $275 |
| 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. |
18 | $378 | $1,247 |
| Laparoscopic gallbladder removal Surgical removal of the gallbladder using a small camera and instruments inserted through tiny incisions in the abdomen. |
16 | $532 | $1,850 |
| 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. |
16 | $66 | $130 |
| 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. |
14 | $109 | $245 |
| Endoscopic hernia repair with mesh A minimally invasive procedure to repair a hernia at the junction of the esophagus and stomach using an endoscope and mesh implantation. |
12 | $1,480 | $4,500 |
| 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. |
11 | $220 | $895 |
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 ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
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. Chojnacki is a clinical cardiology specialist, with moderate Medicare volume, 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
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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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