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

Dr. Isabel Cristina Rojas Santamaria, MD

Individual provider Pediatrics Physician · NPI 1548307481

Dr. Isabel Cristina Rojas Santamaria, MD practises Pediatric Medicine in Dallas, Texas. Qualified in 1994, 32 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group and accepts Medicare assignment. Licensed in Oklahoma and Texas.

Years since qualifying
32
Licensed in
OK, TX
In the registry since
2007
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

5323 Harry Hines Blvd
Dallas, TX 75390-7208 Not confirmed with CMS for 14 years — call before visiting
Phone: (214) 456-8000
Fax: (214) 456-8005
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Pediatric Gastroenterology Physician (primary) Taxonomy 2080P0206X · Licence N9945 (TX)
Pediatrics Physician Taxonomy 208000000X · Licence 24526 (OK)
Pediatrics Physician Taxonomy 208000000X · Licence N9945 (TX)

Record details

NPI number1548307481
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 31, 2007
Last updated in NPPESAugust 15, 2012

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice University Of Texas Southwestern Medical Center At Dallas — 3149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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.

Upper gastrointestinal (GI) endoscopy for acid reflux 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $158 7 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Texas Southwestern Medical Center at Dallas

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3149 clinicians in the practice; 12 are shown here.

Other providers in Dallas