Physician Profile
Unclaimed ProfileAbout SHOWALTER
John C Showalter, MD practises internal medicine in Knoxville, TN. John is a 1997 graduate of University of Kansas School of Med (Kc/Wich/Sal).
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Showalter's specialty?
Dr. Showalter is an internal medicine in Knoxville, TN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Showalter?
Dr. Showalter is listed at 9303 PARKWEST BLVD. SUITE 100, Knoxville, TN 37923. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Showalter?
The number on file is (865) 690-6451. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Showalter's NPI number?
Dr. Showalter's National Provider Identifier is 1104862002. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Showalter's medical education?
Dr. Showalter attended University of Kansas School of Med (Kc/Wich/Sal), graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Showalter been practising?
Dr. Showalter has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Showalter known for?
According to Medicare billing data, Dr. Showalter performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as x-ray of chest, 2 views; provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Showalter confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Showalter. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (865) 690-6451
- Email not available
Practice Locations
9303 PARKWEST BLVD. SUITE 100
Knoxville, TN 37923
Procedures Most Often Billed to Medicare
11,917 services · 6,103 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
1,014 |
| X-ray of chest, 2 views | Imaging | 71046 |
106 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
166 |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
2,400 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
84 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
909 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
905 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
809 |
| Blood test, thyroid stimulating hormone (tsh) | Lab test | 84443 |
699 |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
669 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Other internal medicines in Knoxville 8
Same specialty, same city.
Trained at University of Kansas School of Med (Kc/Wich/Sal) 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1997 at University of Kansas School of Med (Kc/Wich/Sal) 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in TN who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.