Expertise in
8
conditions

Dr. Thomas C. Callahan

Family Medicine
Callahan Clinic PC
1240 E 100 S Ste 15A, 
Saint George, UT 
Accepting New Patients
Expertise in
8
conditions
Callahan Clinic PC
1240 E 100 S Ste 15A, 
Saint George, UT 

Overview

Thomas Callahan is a primary care provider, practicing in Family Medicine in Saint George, Utah.

Dr. Callahan is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Hypothyroidism, Sitosterolemia, Obesity in Children, Glucocorticoid-Remediable Aldosteronism, and Bone Marrow Aspiration.

He is actively involved in clinical research, co-authoring 4 peer reviewed articles. Dr. Callahan is currently accepting new patients.

Specialties

Family Medicine

Licenses

Family Medicine in AZ

Hospital Affiliations

St. George Regional Hospital

Languages Spoken

English

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
Deseret Mutual Benefit Administrators
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
EMI Health
  • PPO
Geisinger
  • HMO
  • POS
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Kaiser Permanente
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
SelectHealth
  • HMO
  • POS
Steward Health Care
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
Tufts
  • HMO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
University of Utah Health
  • EPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 21 Less Insurance Carriers -

Locations

Callahan Clinic PC
1240 E 100 S Ste 15A, Saint George, UT 84790

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

4 Total Publications

Enhancing conventional biopsies: ultrasound-guided percutaneous bone marrow biopsy and aspiration.
Enhancing conventional biopsies: ultrasound-guided percutaneous bone marrow biopsy and aspiration.
Journal: Journal of ultrasound
Published: August 08, 2025
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Before you request

Callahan Clinic PC

1240 E 100 S Ste 15A, 
Saint George, UT 
 (0.1 miles away)
435-656-5323
Languages Spoken:
English, Japanese
See accepted insurances
Accepting New Patients

Douglas Callahan is a primary care provider, practicing in Family Medicine in Saint George, Utah. Dr. Callahan is highly rated in 43 conditions, according to our data. His clinical expertise encompasses Sitosterolemia, Hypothyroidism, Hypertension, and Familial Hypertension. Dr. Callahan is currently accepting new patients.

Expertise in
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Dr. R T. Hansen
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Expertise in
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Dr. R T. Hansen
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Dixie Hospitalists

1380 E Medical Center Dr, 
St George, UT 
 (0.6 miles away)
435-251-2992
Languages Spoken:
English, Thai
See accepted insurances
Accepting New Patients
Offers Telehealth

Broad-spectrum family medicine with in-office surgical procedures. Dr. Hansen is highly rated in 3 conditions, according to our data. His clinical expertise encompasses Klippel-Feil Syndrome, Frontonasal Dysplasia Klippel Feil Syndrome, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Myringotomy. Dr. Hansen is board certified in American Osteopathic Board Of Family Physicians and American Board Of Family Medicine. Dr. Hansen is currently accepting new patients.

Frequently Asked Questions about Dr. Thomas C. Callahan

How do I make an appointment with Dr. Thomas C. Callahan?

You can book an appointment with Dr. Thomas C. Callahan by calling their office at 435-656-5323. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Thomas C. Callahan a top-rated expert for Hypothyroidism?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Thomas C. Callahan is classified as an Advanced expert for Hypothyroidism, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Thomas C. Callahan specialize in?

While Dr. Thomas C. Callahan is a Family Medicine, they have specific expertise in Hypothyroidism, Sitosterolemia, and Obesity in Children. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Family Medicine.

Does Dr. Thomas C. Callahan participate in research or clinical trials?

Yes. Dr. Thomas C. Callahan has published 4 articles and abstracts on conditions like Hypothyroidism. You can view a list of Dr. Thomas C. Callahan's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Thomas C. Callahan accept my insurance?

Dr. Thomas C. Callahan accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 435-656-5323 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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