Summary

Dr. Thomas Showalter treats liver cancer, colorectal cancer, and colon cancer in Oklahoma City, Oklahoma. He practices oncology and internal medicine and has 21 years of experience. He is affiliated with Integris Baptist Medical Center, Lakeside Womens Hospital, and Integris Community Hospital Council Crossing. He earned his DO from Oklahoma State University Center for Health Sciences College of Osteopathic Medicine. Dr. Showalter speaks English and Spanish. Patients on Vitals rate Dr. Showalter 4.25 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 21 years of experience
  • speaks English, Spanish
  • Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med
  • 2 written reviews
  • 2 specialties
  • 10 areas of expertise
  • 3 hospital affiliations
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Thomas Ammen Showalter has 5 locations

Integris Health Cancer Institute

5911 W Memorial RdOklahoma City, OK 73142
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 3:00 pm
SatClosed
SunClosed

Dr. Thomas Ammen Showalter

5911 W Memorial RdOklahoma City, OK 73142

Lakeside Womens Hospital

11200 N Portland AveOklahoma City, OK 73120

Integris Baptist Medical Center

3300 Nw ExpresswayOklahoma City, OK 73112

Compare with Similar Doctors

Dr. Thomas Ammen Showalter III, DO
Dr. Celeste A Boeckman, DO
Dr. Thuy-Phuong Thi Nguyen, MD
Dr. Lindsey Schroeder
Dr. Thomas Ammen Showalter III, DODr. Celeste A Boeckman, DODr. Thuy-Phuong Thi Nguyen, MDDr. Lindsey Schroeder
OncologyNephrologyHospital MedicineDiagnostic Radiology
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
0 
0 
0 
21 Years of Experience 15 Years of Experience 12 Years of Experience 5 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish
Oklahoma City , OKOklahoma City , OKOklahoma City , OKChapel Hill , NC
Med School: Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med Med School: Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med Med School: Texas A&M University System Health Science Center College Of Medicine Med School: University Of Oklahoma College Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Thomas Ammen Showalter

  • Accepts Medicare
  • Accepts Medicaid

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

Dr. Thomas Ammen Showalter holds an expired medical license in the state of Oklahoma.

Medical License

Doctor Of Osteopathy with an expired medical license in the state of Oklahoma that expired in 2026.

Education & Training

Medical School

Graduated from Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med in 2005.

NPI Number

Dr. Showalter's NPI number is 1780853358.

Similar doctors

Frequently Asked Questions

Does Dr. Thomas Showalter accept virtual/telehealth appointments?
Dr. Thomas Showalter has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Thomas Showalter?
You can find contact information for Dr. Thomas Showalter here on Vitals.
What languages does Dr. Thomas Showalter speak?
Dr. Thomas Showalter speaks English and Spanish.
Is Dr. Thomas Showalter accepting new patients?
Dr. Thomas Showalter is accepting new patients on Vitals. View Dr. Thomas Showalter's profile on Vitals to make an appointment.
Does Dr. Thomas Showalter accept my insurance?
You can see the insurance plans that Dr. Thomas Showalter accepts on their Vitals profile.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.