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

Mazen Hassan, MD

Individual provider General Practice Physician · NPI 1003311093

Mazen Hassan, MD is an Internal Medicine in Dallas, Texas. Graduated from University of Texas Medical School at San Antonio in 2018, 8 years ago. Practices with Healthtexas Provider Network, a 2,539-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
8
Trained at
University of Texas Medical School at San Antonio
Licensed in
TX
In the registry since
2018
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3600 Gaston Ave Ste 550
Dallas, TX 75246-1905
Phone: (214) 821-1177
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence S7228 (TX)
General Practice Physician Taxonomy 208D00000X · Licence S7228 (TX)
Hospitalist Physician Taxonomy 208M00000X · Licence S7228 (TX)

Record details

NPI number1003311093
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2018
Last updated in NPPESMarch 3, 2023
Certification dateMarch 3, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 2018 (8 years in practice)
Group practice Healthtexas Provider Network — 2539 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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