Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mark W Sij, DO

Individual provider Internal Medicine Physician · NPI 1396705919

Mark W Sij, DO is an Internal Medicine in Kaufman, Texas. Graduated from University of North Texas Hsc, College of Osteopathic Med in 1998, 28 years ago. Practices with Texas Health Physicians Group, a 1,356-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
28
Trained at
University of North Texas Hsc, College of Osteopathic Med
Licensed in
TX
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

874 ED Hall Dr Ste B-108
Kaufman, TX 75142-1861
Phone: (972) 932-5555
Fax: (972) 932-5557
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence K9421 (TX)

Record details

NPI number1396705919
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 27, 2006
Last updated in NPPESAugust 5, 2011
Mailing address874 Ed Hall Dr Ste B-108, Kaufman, TX 75142-1861

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NORTH TEXAS HSC, COLLEGE OF OSTEOPATHIC MED
Graduated 1998 (28 years in practice)
Group practice Texas Health Physicians Group — 1356 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Kaufman