NPPES file of Aug 9, 2026

Thomas C. McDonald, MD

Internal Medicine Physician · Lexington, TN

Thomas C. McDonald, MD is an internal medicine physician with a practice address in Lexington, Tennessee, and NPI 1124098488, issued on Jan 26, 2006. Check the license (Tennessee 23828, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124098488
Name
Thomas C. McDonald
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
23828 TN
23838 TN
Self-reported in NPPES; status is on the state search
Practice location
200 W Church St, Lexington, TN 38351
Phone
(731) 968-3646
Enumerated
Jan 26, 2006
Record last updated
Jun 14, 2024
Fax
(731) 968-1870
Medicare enrollment
Enrolled (PECOS I20031113000353); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 W Church St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aley Hamadani, MDEmergency Medicine Physician1659637924
  2. Reggie Henderson, M.D.Family Medicine Physician1528058765
  3. Anita Hurt, REGISTERED NURSEMedical-Surgical Registered Nurse1174024921
  4. Natasha LoftinFamily Nurse Practitioner1740551613
  5. Jeffrey Lundy, M.D.Family Medicine Physician1316940893
  6. Corey McNeilly, MDEmergency Medicine Physician1316567191

Verify Thomas C. McDonald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 23828
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Most of these Medicare Part D claims are vaccines, 81% of the cost of the top drugs

1,147 Medicare Part D claims for 262 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 29 claims were for opioids.

  1. Thomas McDonald1,147
  2. Specialty average3,176

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Cefdinir86 claims
  2. Shingrix71 claims
  3. Pantoprazole Sodium69 claims
  4. Potassium Chloride58 claims
  5. Haloperidol48 claims
  6. Quetiapine Fumarate48 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 48.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%96.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities20 of 40 points · 15%50.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Lexington Clinic CorpLexington, TN
  2. Lexington Hospital CorporationLexington, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Thomas C. McDonald among 2,596 internal medicine physician records in Tennessee

Thomas C. McDonald, 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
  • Graduated1994 · median 2003 among the 1,705 with a school on file
  • Record last updated2024 · 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).

4 internal medicine physician records list a practice address in Lexington

They are 4 of the 197 NPPES records with a practice address in Lexington, and 2,596 internal medicine physician records in Tennessee.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sarmed Abdullah, M.D.Lexington, TN 383511588755359
  2. Hannah Shelby-Kennedy, M.D.Lexington, TN 383511578785945
  3. Robert Winston, M.D.Lexington, TN 383511104890201
  4. Ryan Nerland, M.D.Medina, TN 383551972700748
  5. Nicolas Appleton, MDMilan, TN 383581700871480
  6. Joe Appleton, MDMilan, TN 383581275528952
  7. Caitlin Black, MDHuntingdon, TN 383441710568522
  8. Thomas Evans, MDHuntingdon, TN 383441841285228

Common questions

What is Thomas C. McDonald, MD's NPI number?

Thomas C. McDonald, MD's National Provider Identifier (NPI) is 1124098488, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas C. McDonald, MD located?

The NPPES record lists a practice address at 200 W Church St, Lexington, TN, 38351. Phone: (731) 968-3646. Providers update this record themselves, so call before visiting.

How can I verify Thomas C. McDonald, MD's license?

NPPES lists Tennessee license number 23828, 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 Thomas C. McDonald, MD prescribe under Medicare Part D?

In 2024, Thomas C. McDonald, MD had 1,147 Medicare Part D claims for 262 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Thomas C. McDonald, MD's MIPS final score?

The 2023 MIPS final score is 48.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.