NPPES file of Aug 9, 2026

Tennessee Medicare prescriber rankings

29,866 Tennessee prescribers billed $7.1 billion in Medicare Part D drugs in 2024, the 13th largest of 56 states and territories. Opioids were 4.38 of every 100 of those claims (CMS), above the national 3.52.

CMS Medicare Part D Prescribers, 2024; CMS NPPES · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).
  • Prescribers29,866
  • Part D drug cost$7.1 billion
  • Average per prescriber$238,997
  • Wrote an opioid (CMS)18,281 (61.29%)
  • Opioid claims per 100 claims (CMS)4.38

Reading the Tennessee tables

Tennessee's 29,866 prescribers wrote 44,346,934 Part D claims in 2024, about $238,997 in drug cost per prescriber. A high total usually reflects specialty practice, such as cancer, rheumatology or HIV care, or vaccines: 1 of the 50 largest totals are mostly vaccines, which pharmacies often bill under a standing order naming one clinician. These are billing tables, not quality ratings. PlainDoctor does not rank named prescribers by opioid share; the state's opioid figures above come from CMS's own totals.

The 50 highest Part D drug-cost totals

Prescriber (NPPES taxonomy)Drug costClaims
1Marc WatkinsOccupational Medicine Physicianmostly vaccines, often billed by pharmacies under a standing order naming this clinician$45.3 million192,474
2Kathryn DahirEndocrinology, Diabetes & Metabolism Physician$21.9 million760
3Rebecca HungCardiovascular Disease Physician$18.5 million6,548
4Wahid HannaHematology (Internal Medicine) Physician$18.1 million3,438
5Dirk DavidsonSpecialist$15.3 million4,457
6James GoreRheumatology Physician$15.0 million9,144
7John SwisherPulmonary Disease Physician$14.7 million2,942
8Paul EberUrology Physician$13.8 million3,973
9Timothy LeroyUrology Physician$13.7 million4,365
10David MorrisUrology Physician$12.5 million6,174
11James TollePulmonary Disease Physician$11.7 million1,895
12Bertrand AnzHematology & Oncology Physician$11.5 million3,134
13Tulio BertoriniNeurology Physician$10.4 million3,701
14Michael StipanovHematology & Oncology Physician$10.3 million2,582
15Christy ParkRheumatology Physician$10.0 million3,535
16Yanjun MaMedical Oncology Physician$9.9 million2,697
17Syed RazaRheumatology Physician$9.6 million3,697
18Jason ChandlerMedical Oncology Physician$9.4 million2,898
19Mark GreenbergerUrology Physician$9.3 million10,155
20Sivalingam KanagasegarRheumatology Physician$9.3 million10,480
21Randall TrudellNeurology Physician$8.8 million4,854
22Glenn DouglasRheumatology Physician$8.6 million3,955
23Gregory SuttonHematology & Oncology Physician$8.6 million2,986
24Donald VollmerGeriatric Medicine (Family Medicine) Physician$8.6 million204,192
25Mitchell MartinHematology & Oncology Physician$8.5 million2,649
26Robert JohnsonHematology & Oncology Physician$8.5 million2,022
27Jeffry BieberRheumatology Physician$8.5 million2,277
28Dana ThompsonMedical Oncology Physician$8.3 million1,888
29Marcum CollinsRheumatology Physician$8.3 million2,872
30Gautam JayramUrology Physician$8.2 million1,764
31William DonnellanHematology & Oncology Physician$8.2 million2,626
32Muhammad RazaHematology & Oncology Physician$8.2 million2,376
33Walter RayfordUrology Physician$8.2 million6,567
34Mathew JosephHematology & Oncology Physician$8.1 million2,400
35Shiva NatarajanNeurology Physician$8.1 million10,008
36Jarvis ReedHematology & Oncology Physician$8.1 million2,408
37Robert GrahamHematology & Oncology Physician$8.1 million3,168
38Eli SteigelfestRheumatology Physician$7.9 million5,825
39Ian FlinnHematology & Oncology Physician$7.8 million960
40David SchwartzGastroenterology Physician$7.8 million1,205
41Dharmen PatelHematology & Oncology Physician$7.7 million910
42Joseph FoucheMedical Oncology Physician$7.6 million3,740
43Dawn Borromeo BeaulieuGastroenterology Physician$7.6 million1,151
44Jesus BerdejaHematology & Oncology Physician$7.2 million735
45Archie WrightHematology & Oncology Physician$7.2 million2,716
46Ryan CarrHematology & Oncology Physician$7.2 million1,487
47Vanessa GalvezNurse Practitioner$7.1 million1,651
48Mark SaslawskyUrology Physician$7.1 million2,648
49Patrick StevensCardiovascular Disease Physician$7.1 million4,232
50Mark WomackHematology & Oncology Physician$6.9 million2,136

Source: CMS Medicare Part D Prescribers by Provider, 2024 (data.cms.gov), matched to CMS NPPES by NPI; vaccine share from the prescriber's top drugs in the CMS by-provider-and-drug file. Specialty is the taxonomy the clinician reported to NPPES.

Common questions

How many Medicare prescribers are in Tennessee?

Tennessee has 29,866 Medicare Part D prescribers who filed 44,346,934 claims totaling $7.1 billion in drug costs.

What is the opioid prescribing rate in Tennessee?

Opioids were 4.38 of every 100 Medicare Part D claims written by Tennessee prescribers in 2024, against 3.52 nationally (CMS). 18,281 of the state's 29,825 Part D prescribers in CMS's geography file (61.29%) wrote at least one opioid.

Checking a prescriber

Open the prescriber's record for the full NPI entry and prescribing detail, then confirm the license on the state board search. The Part D file covers Medicare Part D only; commercial, Medicaid, VA and cash prescriptions are not in it.

Prescriber rankings in other states

  1. Alabama
  2. Alaska
  3. American Samoa
  4. Arizona
  5. Arkansas
  6. California
  7. Colorado
  8. Connecticut
  9. Delaware
  10. District of Columbia
  11. Florida
  12. Georgia
  13. Guam
  14. Hawaii
  15. Idaho
  16. Illinois
  17. Indiana
  18. Iowa
  19. Kansas
  20. Kentucky
  21. Louisiana
  22. Maine
  23. Maryland
  24. Massachusetts
  25. Michigan
  26. Minnesota
  27. Mississippi
  28. Missouri
  29. Montana
  30. Nebraska
  31. Nevada
  32. New Hampshire
  33. New Jersey
  34. New Mexico
  35. New York
  36. North Carolina
  37. North Dakota
  38. Northern Mariana Islands
  39. Ohio
  40. Oklahoma
  41. Oregon
  42. Pennsylvania
  43. Puerto Rico
  44. Rhode Island
  45. South Carolina
  46. South Dakota
  47. Tennessee
  48. Texas
  49. Utah
  50. Vermont
  51. Virgin Islands
  52. Virginia
  53. Washington
  54. West Virginia
  55. Wisconsin
  56. Wyoming

National prescriber rankings · All rankings

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 Medicare Part D data year 2024 (CMS).