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

Dr. Emily Triana Marx, MD

Individual provider Internal Medicine Physician · NPI 1144491002

Dr. Emily Triana Marx, MD practises Rheumatology in San Antonio, Texas. Graduated from University of Texas Medical School at Houston in 2003, 23 years ago. Practices with Rheumatology Associates of South Texas, PLLC, a 17-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Florida and Texas.

Years since qualifying
23
Trained at
University of Texas Medical School at Houston
Licensed in
FL, TX
In the registry since
2008
Specialties on file
2
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

19272 Stone Oak Pkwy Ste 101
San Antonio, TX 78258-3371
Phone: (210) 265-8851
Fax: (210) 265-8855
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence N3167 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME 100908 (FL)

Record details

NPI number1144491002
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 19, 2008
Last updated in NPPESJuly 29, 2024
Certification dateJuly 29, 2024

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 2003 (23 years in practice)
Group practice Rheumatology Associates Of South Texas, Pllc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients479
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Rheumatology Associates of South Texas, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

Other providers in San Antonio