John Stewart Adams, M.D.
Infectious Disease Physician · Knoxville, TN
John Stewart Adams, M.D. is an infectious disease physician with a practice address in Knoxville, Tennessee, and NPI 1578542338, issued on Jan 11, 2006. Check the license (Tennessee 18808, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Stewart Adams
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 18808 TN
MD018808 TN
Self-reported in NPPES; status is on the state search - Practice location
- 501 19TH Street, Knoxville, TN 37916
- Phone
- (865) 331-9160
- Enumerated
- Jan 11, 2006
- Record last updated
- Jun 13, 2025
- Fax
- (865) 374-2203
- Medicaid IDs
- Q000002 TN
3721924 TN - Medicare enrollment
- Enrolled (PECOS I20101222000102); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 194 in Tennessee → Look up another NPI →
Also registered at 501 19TH Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roy Broady, M.D.Obstetrics & Gynecology Physician1033130018
- Lindsay Gilligan, NPAcute Care Nurse Practitioner1265184451
- Jeannette Groschel-Snead, NPNurse Practitioner1730460262
- Jerrie Haney-Weaver, M.D.Obstetrics Physician1528086097
- Andrea Janoyan, FNP-CFamily Nurse Practitioner1164772695
- Ernest Kemp, M.D.Infectious Disease Physician1790764637
Verify John Stewart Adams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 18808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average infectious disease physician in 2024
1,002 Medicare Part D claims for 136 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Cephalexin62 claims
- Genvoya60 claims
- Cefuroxime53 claims
- Odefsey51 claims
- Cefazolin Sodium37 claims
- Biktarvy36 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Covenant Medical Group IncKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Stewart Adams among 194 infectious disease physician records in Tennessee
John Stewart Adams, M.D. is one of 194 infectious disease physician records with a practice address in Tennessee. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1981 · median 2005 among the 145 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Tennessee
There are 194 infectious disease physician records in Tennessee.
All 194 in Tennessee → Every provider in Knoxville → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Mark IrwinKnoxville, TN 379161104453588
- Ernest Kemp, M.D.Knoxville, TN 379161790764637
- Jamison NorwoodKnoxville, TN 379161902293038
- Catherine Sarbah, M.D.Knoxville, TN 379161821002429
- Henry Shiflett, D.O.Knoxville, TN 379161528421658
- Megan Edwards, M.D.Knoxville, TN 379171730446535
- John Narro, MDKnoxville, TN 379201295815512
- Mark Rasnake, MDKnoxville, TN 379201962464644
Common questions
What is John Stewart Adams, M.D.'s NPI number?
John Stewart Adams, M.D.'s National Provider Identifier (NPI) is 1578542338, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Stewart Adams, M.D. located?
The NPPES record lists a practice address at 501 19TH Street, Knoxville, TN, 37916. Phone: (865) 331-9160. Providers update this record themselves, so call before visiting.
How can I verify John Stewart Adams, M.D.'s license?
NPPES lists Tennessee license number 18808, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Stewart Adams, M.D. prescribe under Medicare Part D?
In 2024, John Stewart Adams, M.D. had 1,002 Medicare Part D claims for 136 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.