Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Gregory Modrall, MD

Individual provider Surgery Physician · NPI 1457435398

John Gregory Modrall, MD practises Vascular Surgery in Dallas, Texas. Graduated from University of Colorado School of Medicine, Denver in 1989, 37 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group and accepts Medicare assignment. Licensed in Arkansas and Texas.

Years since qualifying
37
Trained at
University of Colorado School of Medicine, Denver
Licensed in
AR, 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.

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Practice location Address checks out

5323 Harry Hines Blvd
Dallas, TX 75390-7208 Not confirmed with CMS for 11 years — call before visiting
Phone: (214) 645-0538
Fax: (214) 645-0546
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Vascular Surgery Physician (primary) Taxonomy 2086S0129X · Licence K6159 (TX)
Surgery Physician Taxonomy 208600000X · Licence K6159 (TX)
Vascular Surgery Physician Taxonomy 2086S0129X · Licence E-7074 (AR)

Record details

NPI number1457435398
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 25, 2006
Last updated in NPPESOctober 19, 2015

Medicare enrollment

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

Medicare specialtyVASCULAR SURGERY
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1989 (37 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 locations4 on file with Medicare

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 $82 1 payment · 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.

  • Ut Of Texas Southwestern University Hospital - William P. Clements Jr. Hospital · Dallas, TX

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