JOHN C SHOWALTER MD NPI 1104862002

NPI Information

  • NPI: 1104862002
  • Provider Name: JOHN C SHOWALTER, MD
  • Classification: Internal Medicine - 207R00000X
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 9303 PARKWEST BLVD.
    SUITE 100
    KNOXVILLE, TN
    ZIP 37923
  • Phone: (865) 690-6451

Map and Directions

Get Directions

NPI Details

John C Showalter, MD is an internal medicine in Knoxville, TN with 29 years of experience. The provider is a physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. John C Showalter, MD NPI is 1104862002. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: UNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduation Year:1997

The provider's business location address is:

9303 PARKWEST BLVD.
SUITE 100
KNOXVILLE, TN
ZIP 37923
Phone: (865) 690-6451
Fax: (865) 694-2613

The NPI 1104862002 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

  • Insertion of needle into vein for collection of blood sample (HCPCS:36415)
  • Blood test, comprehensive group of blood chemicals (HCPCS:80053)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS:85025)
  • Blood test, thyroid stimulating hormone (tsh) (HCPCS:84443)
  • Established patient office or other outpatient visit, 20-29 minutes (HCPCS:99213)
  • Blood test, lipids (cholesterol and triglycerides) (HCPCS:80061)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Cyanocobalamin (vitamin b-12) level (HCPCS:82607)
  • Vitamin d-3 level (HCPCS:82306)
  • Folic acid level, serum (HCPCS:82746)
  • Hemoglobin a1c level (HCPCS:83036)
  • Automated urinalysis test (HCPCS:81003)
  • Measurement c-reactive protein for detection of infection or inflammation (HCPCS:86140)
  • Manual urinalysis test with examination using microscope, automated (HCPCS:81001)
  • Injection of drug or substance under skin or into muscle (HCPCS:96372)
  • Psa (prostate specific antigen) measurement, total (HCPCS:84153)
  • X-ray of chest, 2 views (HCPCS:71046)
  • Thyroxine (thyroid chemical), free (HCPCS:84439)
  • Iron level (HCPCS:83540)
  • Transferrin (iron binding protein) level (HCPCS:84466)
  • Ferritin (blood protein) level (HCPCS:82728)
  • Creatine kinase (cardiac enzyme) level, total (HCPCS:82550)
  • Telephone medical discussion with physician, 11-20 minutes (HCPCS:99442)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS:G0439)
  • Administration of influenza virus vaccine (HCPCS:G0008)
  • Blood test, clotting time (HCPCS:85610)
  • Magnesium level (HCPCS:83735)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)
  • Testosterone (hormone) level, total (HCPCS:84403)
  • Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage (HCPCS:90694)
  • Red blood cell sedimentation rate, to detect inflammation, automated (HCPCS:85652)
  • Uric acid level, blood (HCPCS:84550)
  • Injection, regadenoson, 0.1 mg (HCPCS:J2785)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS:93000)
  • Natriuretic peptide (heart and blood vessel protein) level (HCPCS:83880)
  • Lipase (fat enzyme) level (HCPCS:83690)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS:93306)
  • Telephone medical discussion with physician, 21-30 minutes (HCPCS:99443)
  • Injection, methylprednisolone acetate, 80 mg (HCPCS:J1040)
  • Measure of severe acute respiratory syndrome coronavirus 2 (covid-19) antibody (HCPCS:86769)
  • C-peptide (protein) level (HCPCS:84681)
  • Prostate cancer screening; prostate specific antigen test (psa) (HCPCS:G0103)
  • Technetium tc-99m sestamibi, diagnostic, per study dose (HCPCS:A9500)
  • Adm sarscov2 50mcg/0.25mlbst (HCPCS:0064A)
  • Rheumatoid factor level (HCPCS:86431)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test (HCPCS:85027)
  • Fee covid-19 vac 13 res (HCPCS:0124A)
  • Fee covid-19 vac 14 res (HCPCS:0134A)
  • Dxa bone density measurement of hip, pelvis, spine (HCPCS:77080)
  • Glutamyltransferase (liver enzyme) level (HCPCS:82977)
  • Red blood count, automated test (HCPCS:85045)
  • Amylase (enzyme) level (HCPCS:82150)
  • Aspiration and/or injection of fluid from large joint (HCPCS:20610)
  • Phosphate level (HCPCS:84100)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (HCPCS:78452)
  • Exercise or drug-induced heart stress test with electrocardiogram (ecg) (HCPCS:93017)
  • Adm sarscov2 30mcg/0.3ml bst (HCPCS:0004A)
  • Removal of impacted ear wax by washing (HCPCS:69209)
  • Prealbumin (protein) level (HCPCS:84134)
  • X-ray of hip, 2-3 views (HCPCS:73502)
  • Screening test for mononucleosis (mono) (HCPCS:86308)
  • Heart rhythm recording of continous external ekg over 8-15 days (HCPCS:93246)
  • Influenza vaccine split virus, preservative free (HCPCS:90662)

The enumeration date for this NPI number is 6/21/2006 and was last updated on 6/3/2010.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1207R00000XInternal Medicine34349TENNESSEEYes

Other Identifiers

The following information regarding additional identifiers associated to this NPI record includes the other identifier number, identifier type, identifier state and issuer.

No. Other Provider Identifier Other Provider Identifier Type Other Provider Identifier State Other Provider Identifier Issuer
1G82821MEDICARE UPIN
23851852MEDICARE ID-TYPE UNSPECIFIEDTENNESSEELEGACY PIN
33717541MEDICARE ID-TYPE UNSPECIFIEDTENNESSEELEGACY GROUP
4110205240OTHERTENNESSEERR MEDICARE PIN
53851852MEDICAIDTENNESSEE

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

NPI Synchronization or Removal

All materials and services on this site are provided on an "as is" and "as available" basis without warranty of any kind. The NPI record is maintained by the National Plan & Provider Enumeration System (NPPES) and anyone may request this information and other NPPES health care provider data from HHS under The Freedom of Information Act (FOIA), Title 5 of the United States Code, section 552. To update the NPI records please contact the NPPES.