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

Thomas Dee Callahan, MD

Individual provider Family Medicine Physician · NPI 1043328123

Thomas Dee Callahan, MD is a Family Practice in St George, Utah. Graduated from University of Utah School of Medicine in 1975, 51 years ago. Practices with Callahan Clinic, PC, a 4-clinician group and accepts Medicare assignment. Licensed in Utah.

Years since qualifying
51
Trained at
University of Utah School of Medicine
Licensed in
UT
In the registry since
2006
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

1240 E 100 S Ste 15A
St George, UT 84790-3001
Phone: (435) 656-5323
Fax: (435) 656-5127
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 159420-1205 (UT)

Record details

NPI number1043328123
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 28, 2006
Last updated in NPPESJanuary 8, 2013
Mailing address1240 E 100 S, Suite 15a, St George, UT 84790-3001

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF UTAH SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Group practice Callahan Clinic, Pc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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