Opal Caldwell
Nurse Practitioner · Morristown, TNNPI 1548784945
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $16,400 of the $23,803 with a category attached, or 68.9%. Phathom Pharmaceuticals, Inc. accounts for 80.3% of it on its own, with 22 other manufacturers making up the rest. 2025 is the largest year on record at $11,190, more than ten times the $1,004 reported in 2021. Among nurse practitioner clinicians in TN with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 418 payments — averaging $56.94 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Phathom Pharmaceuticals, Inc.$19K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$2K
- AbbVie$919
- Gilead$688
- Johnson & Johnson$520
- Ardelyx, Inc.$146
- plus $807 from 17 others
What the payments were for
- Speaking & faculty fees$16,40069%
- Travel & lodging$1,7127%
- Food & beverage$5,59424%
- Education$970%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | 66 | $19,104 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 147 | $1,618 |
| AbbVie | 62 | $919 |
| Gilead | 66 | $688 |
| Johnson & Johnson | 26 | $520 |
| Ardelyx, Inc. | 7 | $146 |
| Madrigal Pharmaceuticals | 4 | $112 |
| Takeda Pharmaceuticals U.S.A., Inc. | 7 | $103 |
| Aimmune Therapeutics, Inc. | 5 | $100 |
| Bristol Myers Squibb | 7 | $95 |
| Nestle Healthcare Nutrition Inc. | 4 | $79 |
| Redhill Biopharma Inc. | 4 | $60 |
| Esperion Therapeutics, Inc. | 3 | $54 |
| Sanofi | 1 | $33 |
| Lucid Diagnostics Inc. | 1 | $27 |
| Sandoz | 1 | $22 |
| Evoke Pharma, Inc. | 1 | $21 |
| Lilly USA, LLC | 1 | $20 |
| Intra-sana Laboratories | 1 | $18 |
| Merck | 1 | $17 |
| Ferring Pharmaceuticals Inc. | 1 | $17 |
| Novo Nordisk | 1 | $16 |
| Braintree Laboratories, Inc. | 1 | $14 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- VOQUEZNA$17,948
How this compares
$23,803 in reported general payments places this provider in the 95th percentile of 2,662 nurse practitioner providers in Tennessee.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| LinzessLinaclotide | 157 | $118,426 |
| XifaxanRifaximin | 38 | $114,507 |
| IbsrelaTenapanor Hcl | 18 | $44,441 |
| ZenpepLipase/Protease/Amylase | 16 | $37,290 |
| Dexlansoprazole DrDexlansoprazole | 122 | $23,850 |
| TrulancePlecanatide | 20 | $11,240 |
| SutabSod Sulf/Pot Chloride/Mag Sulf | 51 | $8,417 |
| Lubiprostone | 69 | $6,028 |
| Omeprazole | 483 | $5,933 |
| Sucralfate | 210 | $5,525 |
| CholestyramineCholestyramine (With Sugar) | 48 | $4,081 |
| Famotidine | 327 | $3,777 |
| Esomeprazole Magnesium | 62 | $3,131 |
| Pantoprazole Sodium | 351 | $3,049 |
| Tenofovir Disoproxil Fumarate | 26 | $2,691 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan, Trulance | $1,618 | $125,74758 claims |
| AbbVieLinzess | $919 | $118,426157 claims |
| Ardelyx, Inc.Ibsrela | $146 | $44,44118 claims |
| Aimmune Therapeutics, Inc.Zenpep | $100 | $37,29016 claims |
| Braintree Laboratories, Inc.Sutab | $14 | $8,41751 claims |
| SandozLansoprazole | $22 | $1,03357 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 2,662 nurse practitioner providers in Tennessee.
Other nurse practitioner in Morristown
- Amy HatcherMurfreesboro$1.1M
- Karen RodenKnoxville$265K
- Susan UtleyNashville$194K
- Whitney EricksonMemphis$159K
- Erica HembreeKnoxville$125K
- Brooke FaughtNashville$87K
- Lauren WelchNashville$71K
- Cara StoutKingsport$71K
- S Marie HamiltonOoltewah$64K
- Cynthia WilsonChattanooga$62K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.