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

Clinton Warren Twaddell Jr., MD

Individual provider Surgery Physician · NPI 1437131901

Clinton Warren Twaddell Jr., MD practises General Surgery in Fort Worth, Texas. Graduated from University of Texas Southwestern Medical School at Dallas in 1988, 38 years ago. Practices with Johnson Regional Medical Center, a 17-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
38
Trained at
University of Texas Southwestern Medical School at Dallas
Licensed in
TX
In the registry since
2005
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

5801 Oakbend Trl Ste 180
Fort Worth, TX 76132-3915
Phone: (800) 991-6117
Fax: (888) 812-8199
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 220 N Ridgeway Dr, Cleburne, TX 76033-4115 — (817) 556-4800

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence H6668 (TX)

Record details

NPI number1437131901
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 18, 2005
Last updated in NPPESNovember 11, 2025
Certification dateNovember 11, 2025

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 1988 (38 years in practice)
Group practice Johnson Regional Medical Center — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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.

Varicose vein removal 43 times · 71st percentile
Colonoscopy 1–10 times
Hernia repair - groin (open) 1–10 times
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.

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 patients48
Services billed 84 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Johnson Regional Medical Center

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 Fort Worth