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

Dr. Mark Winston Smith, MD

Individual provider Internal Medicine Physician · NPI 1326111790

Dr. Mark Winston Smith, MD is a Critical Care (Intensivists) in Texarkana, Texas. Graduated from University of Southern California Keck School of Medicine in 2005, 21 years ago. Practices with Queens University Medical Group, a 623-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
21
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA, TX
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2602 Saint Michael Dr Ste 400
Texarkana, TX 75503
Phone: (903) 614-5670
Fax: (903) 614-5674
Show map & directions

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

Additional practice locations (4)

  • 401 S Fair Oaks Ave, Pasadena, CA 91105-2603 — (626) 795-2244
  • 600 Elizabeth St, Corpus Christi, TX 78404-2235 — (361) 881-3000
  • 619 S Fleishel Ave Ste 100, Tyler, TX 75701-2004 — (903) 606-2830
  • 800 E Dawson St, Tyler, TX 75701-2036 — (903) 606-5864

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence R3217 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence A96979 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence R3217 (TX)

Record details

NPI number1326111790
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 15, 2006
Last updated in NPPESJanuary 21, 2025
Certification dateJanuary 21, 2025
Mailing address2900 Saint Michael Dr Ste 401, Texarkana, TX 75503-5211

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesINTERNAL MEDICINE, PULMONARY DISEASE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Queens University Medical Group — 623 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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