John D. Carroll, M.D.
Internal Medicine Physician · Knoxville, TN
John D. Carroll, M.D. is an internal medicine physician with a practice address in Knoxville, Tennessee, and NPI 1508811860, issued on May 24, 2006. Check the license (Tennessee MD38722, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John D. Carroll
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD38722 TN
Self-reported in NPPES; status is on the state search - Practice location
- 10689 Hardin Valley RD, Knoxville, TN 37932
- Phone
- (865) 692-1220
- Enumerated
- May 24, 2006
- Record last updated
- Dec 18, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (865) 692-1499
- Medicare enrollment
- Enrolled (PECOS I20041118000846); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 10689 Hardin Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alanah Bell, PA-CPhysician Assistant1235679036
- Madison Woodard, PA-CMedical Physician Assistant1932090685
Verify John D. Carroll in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license MD38722Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
6,736 Medicare Part D claims for 536 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 116 claims were for opioids.
Most prescribed
- Levothyroxine Sodium319 claims
- Atorvastatin Calcium312 claims
- Rosuvastatin Calcium246 claims
- Omeprazole233 claims
- Gabapentin207 claims
- Amlodipine Besylate171 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.
Industry payments in 2024: $63.48
3 payments; by number, the most common kind was food and beverage; the largest payer was Antares Pharma, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Summit Medical Group, PLLCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
237 internal medicine physician records list a practice address in Knoxville
They are 237 of the 14,339 NPPES records with a practice address in Knoxville, and 2,596 internal medicine physician records in Tennessee.
All 237 in Knoxville → All 2,596 in Tennessee → Every provider in Knoxville →
Other internal medicine physician records in Tennessee
- John Aaron, MDClarksville, TN1629019922
- Damon Abaray, MDNashville, TN1275680134
- Samuel Abbas, MDHixson, TN1497105373
- Matthew Abbate, MDNashville, TN1982796306
- Sarmed Abdullah, M.D.Lexington, TN1588755359
- Temidayo Abe, MDNashville, TN1366947798
- Ahad Abid, MDNashville, TN1316500176
- Mouna Abouamara, MDJohnson City, TN1447324603
- Betty Abraham, MDChattanooga, TN1093923633
- Rawan Abu-Zeitoon, M.DKingsport, TN1265621072
Common questions
What is John D. Carroll, M.D.'s NPI number?
John D. Carroll, M.D.'s National Provider Identifier (NPI) is 1508811860, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. Carroll, M.D. located?
The NPPES record lists a practice address at 10689 Hardin Valley RD, Knoxville, TN, 37932. Phone: (865) 692-1220. Providers update this record themselves, so call before visiting.
How can I verify John D. Carroll, M.D.'s license?
NPPES lists Tennessee license number MD38722, 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 D. Carroll, M.D. prescribe under Medicare Part D?
In 2024, John D. Carroll, M.D. had 6,736 Medicare Part D claims for 536 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.