Has John Knab, MD received payments from drug or device companies?

Yes. Drug and device makers reported $9,160 in general payments to John Knab, MD across 233 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean John Knab, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about John Knab, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

John Knab, MD

Interventional Pain Medicine · Wilmington, NCNPI 1265437008

Payments from drug & device makers

What this record shows

This record is dominated by food and beverage: $6,802 of the $9,160 with a category attached, or 74.3%. 18 manufacturers reported payments, led by Boston Scientific at 40.7% of the total.

$9,160in general payments, 2019–2025

Across 233 payments — averaging $39.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Boston Scientific$4K
Nevro Corp.$3K
Abbott$1K
Relievant Medsystems, Inc.$358
Globus Medical$150
Comsort, Inc$100
plus $503 from 12 others

What the payments were for

Consulting fees$1,26914%
Travel & lodging$1,08912%
Food & beverage$6,80274%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

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
Boston Scientific	96	$3,732
Nevro Corp.	40	$3,102
Abbott	64	$1,215
Relievant Medsystems, Inc.	4	$358
Globus Medical	6	$150
Comsort, Inc	1	$100
Curonix LLC	1	$98
Biotronik NRO, Inc.	4	$89
Vertos Medical, Inc.	3	$59
Stryker	3	$57
Saluda Medical Americas, Inc.	2	$40
Medtronic(2 entities)	2	$33
Painteq LLC	2	$30
SPR Therapeutics, Inc	1	$27
Nalu Medical, Inc.	1	$20
Sonex Health, Inc.	1	$18
Stimwave Technologies Incorporated	1	$16
Collegium Pharmaceutical, Inc.	1	$15

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.

Senza Spinal Cord Stimulation System$1,845
WaveWriter Alpha Prime 16$1,169
Intracept$1,148
Omnia$239
Senza$117
GENERAL PAIN MANAGEMENT$102
BRIDION$100

How this compares

$9,160 in reported general payments places this provider in the 75th percentile of 45 interventional pain medicine providers in North Carolina.

See all interventional pain medicine providers in North Carolina →

Medicare billing

Part B allowed, 2024

$507,942

Medicare patients

541

Services billed

17,158

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
Fentanyl	13	$1,260
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen	52	$1,137
Morphine Sulfate ErMorphine Sulfate	16	$493
Gabapentin	40	$423
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen	28	$391
Oxycodone Hcl	17	$382
Methadone Hcl	12	$218
Tizanidine Hcl	21	$145
Methocarbamol	16	$76
Topiramate	16	$70
Meloxicam	19	$61
Pregabalin	11	$58
Tramadol Hcl	14	$48
Diazepam	18	$21

Paid to pharmacies, not to this prescriber.

Other interventional pain medicine in Wilmington

Sunil AroraWilmington$6K
Francis PecoraroWilmington$3K
Charles DanielsWilmington$2K
Timothy ChafinAhoskie$59K
Robert WilsonSalisbury$37K
John MansfieldAsheville$25K
Erin ChaneyJacksonville$22K
Kevin CostelloGreenville$22K
Scott JohnstonJacksonville$20K
Harsh GovilStatesville$19K

See the full list for North Carolina →

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.

Is this you, or does something look wrong? →