Dr. Mark Sij, D.O.
What this data tells you about Dr. Sij
Dr. Mark Sij is an internal medicine in Kaufman, TX, with 20 years in practice. Based on federal Medicare data, Dr. Sij performed 2,476 Medicare services across 1,464 unique beneficiaries.
Between the years covered by Open Payments, Dr. Sij received a total of $24,182 from 61 pharmaceutical and/or device companies across 678 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. 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. Sij is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. 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 |
|---|---|---|---|
| EKG interpretation and report | 1,145 | $6 | $28 |
| Office visit, established patient (30-39 min) | 621 | $77 | $323 |
| Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | 171 | $26 | $128 |
| Flu vaccine, high-dose | 95 | $72 | $90 |
| Flu vaccine administration | 94 | $30 | $60 |
| Drug injection, under skin or into muscle | 70 | $9 | $73 |
| Injection, methylprednisolone acetate, 80 mg | 69 | $8 | $20 |
| Ceftriaxone antibiotic injection | 64 | $0 | $3 |
| Joint injection, major joint | 39 | $34 | $267 |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 32 | $39 | $167 |
| Office visit, established patient (20-29 min) | 31 | $44 | $218 |
| Automated urinalysis | 29 | $2 | $10 |
| New patient office visit (45-59 min) | 16 | $97 | $500 |
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)
Associated products mentioned in payments ›
The majority of payments (56%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in internal medicine and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 4% for internal medicine in TX.
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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Sij is a clinical cardiology specialist, with above-average Medicare volume (top 14% in TX), and high industry engagement (speaking/promotional, top 4%), with 20 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Sij experienced with ekg interpretation and report?
Does Dr. Sij receive payments from pharmaceutical companies?
How do Dr. Sij's costs compare to other internal medicines in Kaufman?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
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. The Transparency Score measures 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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology