Summary

Dr. Thomas Showalter is a board-certified oncologist and internal medicine physician with 21 years of experience treating cancer patients. He earned his medical degree from Oklahoma State University Center for Health Sciences College of Osteopathic Medicine, where he developed expertise in both cancer care and comprehensive internal medicine. Dr. Showalter speaks both Spanish and English, enabling him to serve diverse patient populations throughout Oklahoma City.

Dr. Showalter practices at Integris Baptist Medical Center and maintains additional locations throughout Oklahoma City, including Lakeside Women's Hospital and Integris Community Hospital Council Crossing. He specializes in treating lung cancer and liver cancer, with particular expertise in helping patients overcome tobacco use disorder. His diagnostic capabilities include performing CT scans, chest imaging, and abdominal scans to accurately identify and monitor cancer progression. Patients have given Dr. Showalter an average rating of 4.3 stars, reflecting their confidence in his compassionate cancer care.
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AI-generated from data on this provider profile.

Quick Facts

  • 4.3
  • 21 years of experience
  • 33 insurance plans accepted
  • speaks Spanish, English
  • Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med
  • 2 written reviews
  • 2 specialties
  • 10 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 4 office locations
  • Male

Office Locations

Dr. Thomas Ammen Showalter has 4 locations

Dr. Thomas Ammen Showalter

5911 W Memorial RdOklahoma City, OK 73142
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

Lakeside Womens Hospital

11200 N Portland AveOklahoma City, OK 73120

Integris Baptist Medical Center

3300 Nw ExpresswayOklahoma City, OK 73112

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Dr. Thomas Ammen Showalter, DO
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Dr. Thomas Ammen Showalter, DODr. Gonzalo Alvarez-Del Real, MDDr. William Gentry Thurman, MDDr. Thomas Neil Lynn Jr, MD
OncologyAllergy & ImmunologyPediatricsPublic Health & General Preventive Medicine
4.3 
21 Years of Experience 30 Years of Experience 71 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English
Oklahoma City , OKEdmond , OKOklahoma City , OKOklahoma City , OK
Med School: Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med Med School: Universidad De La Salle Med School: University of Oklahoma
Current Profile
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Insurance Plans Accepted by Dr. Thomas Ammen Showalter

  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna - Medicare
  • Aetna Better Health
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Oklahoma
  • CHAMPVA
  • Cigna
  • Contra Costa Health Plan
  • Global Health
  • Global Health - Medicare
  • Healthcare Highways Health Plan
  • HealthChoice
  • HealthChoice Oklahoma
  • HealthSmart
  • Humana
  • Humana - Medicaid (Managed)
  • Medica
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medical Mutual
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Mutual of Omaha
  • Optum Health
  • Physicians Mutual
  • STLDentalPlan| LLC
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • Wellcare

Medical Specialties

Dr. Thomas Ammen Showalter has the following 2 specialties

Specialty Expertise

Dr. Thomas Ammen Showalter has the following 10 areas of expertise

  • Cancer
  • Check-up
  • Heartburn
  • Immunization
  • Internal Medicine
  • Leukemia
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

21 Years Experience

MEDICAL LICENSE

Doctor Of Osteopathy, Oklahoma, 2026, Active

EDUCATION & TRAINING

Medical School

Oklahoma State Univ Center For Health Sciences College Of Osteopathic MedGraduated in 2005

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Frequently Asked Questions

Is Dr. Thomas Showalter accepting new patients?
Dr. Thomas Showalter has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Thomas Showalter accept my insurance?
You can see the insurance plans that Dr. Thomas Showalter accepts on their Vitals profile.
What languages does Dr. Thomas Showalter speak?
Dr. Thomas Showalter speaks Spanish and English.
Which hospitals is Dr. Thomas Showalter affiliated with?
Dr. Thomas Showalter is affiliated with Integris Baptist Medical Center.
Where is Dr. Thomas Showalter's office located?
Dr. Thomas Showalter's office is located at 5911 W Memorial Rd, Oklahoma City, OK, 73142.

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