James Thomas Kirby, MD
Internal Medicine Physician · Knoxville, TN
James Thomas Kirby, MD is an internal medicine physician with a practice address in Knoxville, Tennessee, and NPI 1497791438, issued on Jun 20, 2006. Check the license (Tennessee 34935, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Thomas Kirby
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 34935 TN
Self-reported in NPPES; status is on the state search - Practice location
- 9333 Park West Blvd, Knoxville, TN 37923
- Phone
- (865) 531-4600
- Enumerated
- Jun 20, 2006
- Record last updated
- May 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 3864630 TN
- Medicare enrollment
- Enrolled (PECOS I20050311000884); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 9333 Park West Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lauren Brown, APRN-BCAdult Health Nurse Practitioner1275667412
- Diana Brown Taylor, LCWSClinical Social Worker1073847836
- Udit Chaudhuri, MDInternal Medicine Physician1083640569
- Kellie Chernikow, DPTPhysical Therapist1144650284
- Hollis Cotton, MDInternal Medicine Physician1437194792
Verify James Thomas Kirby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 34935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average internal medicine physician in 2024
12,207 Medicare Part D claims for 771 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 134 claims were for opioids.
Most prescribed
- Levothyroxine Sodium649 claims
- Amlodipine Besylate559 claims
- Atorvastatin Calcium520 claims
- Omeprazole355 claims
- Metoprolol Succinate303 claims
- Losartan Potassium285 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: $2,114.51
143 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 2 group practices
- Summit Medical Group, PLLCKnoxville, TN
- Volunteer Healthcare Services, Inc.Morristown, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Thomas Kirby among 2,596 internal medicine physician records in Tennessee
James Thomas Kirby, MD is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2003 among the 1,705 with a school on file
- Record last updated2008 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (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 2,596 in Tennessee → Every provider in Knoxville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Udit Chaudhuri, MDKnoxville, TN 379231083640569
- Hollis Cotton, MDKnoxville, TN 379231437194792
- Edward Good, MDKnoxville, TN 379231376589903
- Ketan Hira, DOKnoxville, TN 379231346285608
- Jessica Ivey, MDKnoxville, TN 379231124096136
- Jerome McKenzie, MDKnoxville, TN 379231528003761
- Robert Montgomery, MDKnoxville, TN 379231124064167
- Karen Rader, M.D.Knoxville, TN 379231790733277
Common questions
What is James Thomas Kirby, MD's NPI number?
James Thomas Kirby, MD's National Provider Identifier (NPI) is 1497791438, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Thomas Kirby, MD located?
The NPPES record lists a practice address at 9333 Park West Blvd, Knoxville, TN, 37923. Phone: (865) 531-4600. Providers update this record themselves, so call before visiting.
How can I verify James Thomas Kirby, MD's license?
NPPES lists Tennessee license number 34935, 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 James Thomas Kirby, MD prescribe under Medicare Part D?
In 2024, James Thomas Kirby, MD had 12,207 Medicare Part D claims for 771 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.