NPPES file of Aug 9, 2026

Sleep Medicine (Internal Medicine) Physician in Tennessee

27 NPPES records list sleep medicine (internal medicine) physician with a practice address in Tennessee, 0.4 per 100,000 residents, the 23rd highest rate of 48. Nashville and Memphis have the most; each record links to the provider's NPI and the Tennessee license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RS0012X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Nashville has the most, 9

  1. Nashville9
  2. Memphis6
  3. Knoxville4
  4. Cookeville2
  5. Brentwood1

Sleep Medicine (Internal Medicine) Physician records in Tennessee

  1. James Andrews, MDMemphis, TN 381571255312336
  2. Kelly Carden, MDNashville, TN 372031811978737
  3. James Davis, MDCookeville, TN 385011811938160
  4. Laura Donahue, MDNashville, TN 372321538795521
  5. Rosemarie Dudenhofer, M.D.Nashville, TN 372321760643803
  6. Mitchell Gigandet, MDNashville, TN 372321831726009
  7. Bert Hampton, M.D.Knoxville, TN 379161932245743
  8. James Haynes, MDNashville, TN 372031104810274
  9. David Henson, M.D.Cookeville, TN 385011801899224
  10. Prashant James, M.D.Knoxville, TN 379091609250562
  11. Bijoy John, MDBrentwood, TN 370271467456228
  12. Melissa Khalil, MDJohnson City, TN 376041346877289
  13. Lily Kim, MDNashville, TN 372321245736032
  14. Ariel Long, D.O.Memphis, TN 381051548657281
  15. Gary Lovelady, M.D.Tullahoma, TN 373881619057528
  16. William Mariencheck, MDMemphis, TN 381571467432203
  17. Kevin Martinolich, MDKnoxville, TN 379201659388197
  18. Matthew Mascioli, DOKnoxville, TN 379091225615933
  19. John McGehee, M.D.Memphis, TN 381201265470462
  20. Ngoc Thanh Tu Nguyen, MDKingsport, TN 376601396307492
  21. William Noah, MDMurfreesboro, TN 371291801808597
  22. Cherridan Rambally, M.D.Oak Ridge, TN 378301619015575
  23. Kaung SanNashville, TN 372041720519820
  24. James Sheller, MDNashville, TN 372321538268974
  25. Paula Watson, MDNashville, TN 372321780776104
  26. Merrill Wise, M.D.Memphis, TN 381571922089192
  27. Syed Zaidi, M.D.Memphis, TN 381571164634838

Source: CMS NPPES, primary taxonomy 207RS0012X: records by practice city and the list of records, file of Aug 9, 2026.

Tennessee ranks 23 of 48 per resident

  1. Maryland0.4
  2. Iowa0.4
  3. Indiana0.4
  4. Tennessee0.4
  5. Arizona0.4
  6. Mississippi0.4
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207RS0012X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

85.2% of these records appear in a Medicare file, against 84.4% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Tennessee85.2%
  2. United States84.4%

Sleep Medicine (Internal Medicine) Physician records in Tennessee, measured

  • In a Medicare file23 of 27 · 85.2% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file19 · 70.4% here, 70.6% nationally
  • Not updated in five years or more11 · 40.7% here, 43.7% nationally
  • Median graduation year1999 · the 19 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RS0012X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

27 NPPES records list sleep medicine (internal medicine) physician (207RS0012X) as their primary taxonomy with a practice address in Tennessee: 0.4 per 100,000 residents against 0.3 nationally (50 states and D.C.). Nashville has 9 of them (33%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. New Jersey27
  2. Wisconsin27
  3. Arizona28
  4. Indiana26

States with a similar rate per 100,000

  1. Mississippi0.4
  2. Colorado0.4
  3. Iowa0.4
  4. Illinois0.3

The largest states

  1. California129
  2. Pennsylvania58
  3. New York57
  4. Texas56
  5. Ohio53

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.