Summary

Dr. John Showalter specializes in internal medicine, providing comprehensive care for adult patients. He earned his medical degree from the University of Kansas School of Medicine and completed his residency at the prestigious Mayo Clinic and Medical School. With 29 years of experience treating patients, Dr. Showalter brings extensive knowledge to his practice. He is fluent in both English and Spanish.

Dr. Showalter practices at Summit Medical Associates and maintains affiliations with Parkwest Medical Center and Tennova Healthcare Turkey Creek Medical Center in Knoxville, Tennessee. His expertise includes managing complex conditions such as type 2 diabetes and providing care for patients with Alzheimer's disease and dementia. He offers comprehensive health assessments through blood tests and incorporates physical therapy and strength training into patient treatment plans. Patients have given him an average rating of 4.3 out of 5 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 29 years of experience
  • speaks English, Spanish
  • Mayo Clinic And Medical School
  • 8 written reviews
  • 1 specialty
  • 7 areas of expertise
  • 2 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. John C Showalter has 2 locations

Summit Medical Associates

9333 Park West BlvdKnoxville, TN 37923
Mon7:00 am - 4:00 pm
Tue7:00 am - 4:00 pm
Wed7:00 am - 4:00 pm
Thu7:00 am - 4:00 pm
Fri7:00 am - 4:00 pm
SatClosed
SunClosed

Parkwest Medical Center

9352 Park West BlvdKnoxville, TN 37923

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Dr. John C Showalter, MD
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Dr. John C Showalter, MDEric HarkerDr. James Richard Delashmit, MDMichelle M Holmes
Internal MedicineInternal MedicineEmergency MedicineNurse Practitioner
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
29 Years of Experience 25 Years of Experience 53 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English Speaks English
Knoxville , TNLyons , COMaryville , TNKnoxville , TN
Med School: University Of Kansas School Of Medicine Med School: Duke University School Of Medicine Med School: University Of Tennessee Health Science Center College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John C Showalter

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. John C Showalter has the following specialty

Specialty Expertise

Dr. John C Showalter has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

29 Years Experience

Dr. John C Showalter holds an expired medical license in the state of Tennessee.

Medical License

Medical Doctor with an expired medical license in the state of Tennessee that expired in 2026.

Education & Training

Residency

Completed their residency at Mayo Clinic And Medical School.

Medical School

Graduated from University Of Kansas School Of Medicine in 1997.

NPI Number

Dr. Showalter's NPI number is 1104862002.

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Frequently Asked Questions

Which hospitals is Dr. John Showalter affiliated with?
Dr. John Showalter is affiliated with Parkwest Medical Center and Tennova Healthcare Turkey Creek Medical Center.
Where is Dr. John Showalter's office located?
Dr. John Showalter's office is located at 9333 Park West Blvd, Knoxville, TN, 37923.
Does Dr. John Showalter accept virtual/telehealth appointments?
Dr. John Showalter has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. John Showalter accept my insurance?
You can see the insurance plans that Dr. John Showalter accepts on their Vitals profile.
What languages does Dr. John Showalter speak?
Dr. John Showalter speaks English and Spanish.

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