# Mark W Sij, DO

Source: https://ourhealthnetwork.com/doctor/mark-sij-do-1396705919
NPI: 1396705919
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Mark W Sij, DO is a internal medicine based in Kaufman, TX practicing at Texas Health Physicians Group with NPI 1396705919 and offers telehealth visits.

## Profile

- Primary specialty: Internal Medicine
- Credential: DO
- Gender: Male
- Medical school: UNIVERSITY OF NORTH TEXAS HSC, COLLEGE OF OSTEOPATHIC MED
- Graduation year: 1998
- Telehealth: Yes
- NPI: 1396705919 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1396705919))

## Practice and contact

- Practice name: Texas Health Physicians Group
- Address: 874 Ed Hall Dr, Suite B108, Kaufman, TX, 751421861
- Phone: (972) 932-5555
- Group practice size: 1348 members

## Insurance accepted (7 networks)

This provider is in network with the following insurance carriers, based on federal Transparency in Coverage filings and FHIR provider directories:

- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 13 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 11 plans
- [HCSC: BCBS Texas](https://ourhealthnetwork.com/insurance/hcsc-bcbs-texas) — 8 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 7 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 3 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Mark W Sij, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1396705919).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 115 disclosed payments from medical industry sources totaling approximately $2,009.

Largest disclosed payer: AstraZeneca Pharmaceuticals LP ($272 cumulative).

Source: CMS Open Payments program (federal financial-transparency dataset). Industry payment disclosures do not imply any wrongdoing; many are legitimate consulting fees, research support, or speaker honoraria.

## Related on OurHealthNetwork

- [More Internal Medicine doctors in KAUFMAN, TX](https://ourhealthnetwork.com/internal-medicine/tx/kaufman)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1396705919)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)