NPPES file of Aug 9, 2026

Stephen Dennis Clark, M.D.

Internal Medicine Physician · Crossville, TN

Stephen Dennis Clark, M.D. is an internal medicine physician with a practice address in Crossville, Tennessee, and NPI 1275727927, issued on Sep 5, 2007. Check the license (Tennessee 42144, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275727927
Name
Stephen Dennis Clark
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
42144 TN
Self-reported in NPPES; status is on the state search
Practice location
493 Lantana RD, Crossville, TN 38555
Phone
(931) 335-9919
Enumerated
Sep 5, 2007
Record last updated
May 4, 2026
Fax
(931) 335-9954
Medicaid IDs
3000928 TN
7100432890 KY
Medicare enrollment
Enrolled (PECOS I20071119000659); accepts Medicare assignment
Medical or professional school
East Tennessee State University Quillen College Of Medicine, 2005
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 493 Lantana RD

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

  1. Susan Pick, MDOrthopaedic Surgery Physician1568572675
  2. April Thornton, APNFamily Nurse Practitioner1952744740

Verify Stephen Dennis Clark 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 42144
    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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3.4 times the Medicare Part D claims of the average internal medicine physician in 2024

10,648 Medicare Part D claims for 652 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 201 claims were for opioids.

  1. Stephen Clark10,648
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium516 claims
  2. Amlodipine Besylate448 claims
  3. Atorvastatin Calcium393 claims
  4. Levothyroxine Sodium382 claims
  5. Lisinopril344 claims
  6. Losartan Potassium290 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: $482.05

29 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.

  1. Stephen Clark$482.05
  2. Specialty average$1,303.06

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

  1. 493 Internal Medicine PLLCCrossville, TN

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

Stephen Dennis Clark among 2,596 internal medicine physician records in Tennessee

Stephen Dennis Clark, M.D. 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 2007, is newer than 54% of them.

  • NPI issued2007 · 54% of these records are older, 37% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2005 · median 2003 among the 1,705 with a school on file
  • Record last updated2026 · 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).

19 internal medicine physician records list a practice address in Crossville

They are 19 of the 532 NPPES records with a practice address in Crossville, and 2,596 internal medicine physician records in Tennessee.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Thomas Clayton, M.D.Crossville, TN 385551295734382
  2. Tamara Collins, M.D.Crossville, TN 385551104971308
  3. Chad Conatser, M.D.Crossville, TN 385551760688923
  4. Joanna Gibbs, MDCrossville, TN 385551558372862
  5. Wesley Halford, MDCrossville, TN 385551699896886
  6. Amanda Halford, MDCrossville, TN 385551396868170
  7. Mark Lee, MDCrossville, TN 385551528079969
  8. Mehran Monazam Tavallaee, M.D.Crossville, TN 385551245437060

Common questions

What is Stephen Dennis Clark, M.D.'s NPI number?

Stephen Dennis Clark, M.D.'s National Provider Identifier (NPI) is 1275727927, issued on Sep 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Dennis Clark, M.D. located?

The NPPES record lists a practice address at 493 Lantana RD, Crossville, TN, 38555. Phone: (931) 335-9919. Providers update this record themselves, so call before visiting.

How can I verify Stephen Dennis Clark, M.D.'s license?

NPPES lists Tennessee license number 42144, 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 Stephen Dennis Clark, M.D. prescribe under Medicare Part D?

In 2024, Stephen Dennis Clark, M.D. had 10,648 Medicare Part D claims for 652 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.