William Blalock, MD
Cardiovascular Disease · Chattanooga, TNNPI 1740254820
Payments from drug & device makers
Across 637 payments — averaging $40.11 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$14K
- Novartis$1K
- Lantheus Medical Imaging, Inc.$1K
- Boston Scientific$858
- Pfizer$823
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$810
- plus $7K from 43 others
What the payments were for
- Speaking & faculty fees$11,90047%
- Travel & lodging$9914%
- Food & beverage$12,47249%
- Education$1891%
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.
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.
- XARELTO$13,048
- Definity$315
- AURORA EV-ICD MRI SURESCAN$173
- ENSITE PRECISION$125
- Repatha$122
- LINQ II$117
- Kerendia$114
- Ozempic$108
- ANDEXXA$104
How this compares
$25,552 in reported general payments places this provider in the 80th percentile of 429 cardiovascular disease 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 |
|---|---|---|
| EliquisApixaban | 108 | $84,384 |
| XareltoRivaroxaban | 52 | $45,631 |
| EntrestoSacubitril/Valsartan | 46 | $31,832 |
| MultaqDronedarone Hcl | 16 | $18,180 |
| Repatha SureclickEvolocumab | 11 | $14,639 |
| BrilintaTicagrelor | 12 | $14,420 |
| FarxigaDapagliflozin Propanediol | 13 | $13,060 |
| Ranolazine ErRanolazine | 29 | $5,540 |
| Nebivolol Hcl | 33 | $3,577 |
| Fenofibric AcidFenofibric Acid (Choline) | 14 | $1,618 |
| Metoprolol Succinate | 109 | $1,586 |
| Isosorbide Mononitrate ErIsosorbide Mononitrate | 101 | $1,584 |
| ClopidogrelClopidogrel Bisulfate | 97 | $1,345 |
| Atorvastatin Calcium | 70 | $1,310 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 26 | $1,182 |
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 |
|---|---|---|
| PfizerEliquis | $823 | $84,384108 claims |
| Johnson & JohnsonXarelto | $13,925 | $45,63152 claims |
| NovartisEntresto | $1,280 | $31,83246 claims |
| AstraZenecaBrilinta, Farxiga | $464 | $27,48025 claims |
| Sanofi-aventis U.S. LLCMultaq | $215 | $18,18016 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 80th percentile of 429 cardiovascular disease providers in Tennessee.
Other cardiovascular disease in Chattanooga
- Selcuk TombulChattanooga$204K
- Patrick StevensChattanooga$103K
- Brian LindmanNashville$5.5M
- David MetzgerKingsport$4.8M
- Christopher EllisNashville$4.1M
- Dinesh GuptaNashville$3.2M
- Joann LindenfeldNashville$2.2M
- Frank McGrewMemphis$2.1M
- Rebecca HungNashville$1.8M
- Mohsin AlhaddadJackson$1.8M
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.