Medicare Enrolled
Dr. John Knab, MD
Interventional Pain Medicine Physician · Wilmington, NC
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Knab from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Knab
Dr. John Knab is an interventional pain medicine physician in Wilmington, NC, with 21 years of NPI registration. Based on federal Medicare data, Dr. Knab performed 12,741 Medicare services across 3,250 unique beneficiaries.
Between the years covered by Open Payments, Dr. Knab received a total of $8,975 from 18 pharmaceutical and/or device companies across 192 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in interventional pain medicine physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Knab is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 21 years in practice
▲ Top 15% volume in NC
$8,975 industry payments
Medicare Practice Summary
Medicare Utilization ↗12,741
Medicare services
Top 15% in NC for interventional pain medicine physician
3,250
Unique beneficiaries
$33
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~607 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Injection, ropivacaine hydrochloride, 1 mg | 5,114 | $0 | $2 |
| Contrast dye for imaging, lower concentration | 1,462 | $0 | $4 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
963 | $89 | $260 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
853 | $0 | $4 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
728 | $1 | $4 |
| Ketorolac injection, per 15 mg An injection of ketorolac tromethamine, a nonsteroidal anti-inflammatory drug, administered in doses measured per 15 mg. |
381 | $0 | $10 |
| Injection, methylprednisolone acetate, 40 mg | 233 | $6 | $13 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
229 | $116 | $450 |
| Fluoroscopic guidance for needle placement Use of real-time X-ray imaging to guide the precise placement of a needle during a medical procedure. |
228 | $85 | $230 |
| Sacral spine nerve root injection with imaging guidance An injection of anesthetic and/or steroid medication into a sacral spine nerve root. The procedure uses imaging guidance to ensure accurate placement. |
219 | $212 | $700 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
197 | $49 | $200 |
| Viscosupplementation injection for joint An injection of hyaluronic acid or a derivative into a joint to provide lubrication and cushioning. |
182 | $57 | $300 |
| Injection of anesthetic or steroid into sacroiliac joint with imaging guidance This procedure involves injecting an anesthetic or steroid medication into the joint connecting the lower spine and hip bone. Imaging guidance is used to ensure accurate placement of the injection. |
167 | $148 | $500 |
| Methylprednisolone acetate injection, 20 mg A 20 mg injection of methylprednisolone acetate, a corticosteroid medication. This code specifies the drug and dosage administered. |
166 | $4 | $9 |
| Spine facet joint injection with imaging guidance, single level An injection is administered into a single facet joint of the lower or sacral spine while using imaging guidance to ensure accurate placement. |
146 | $167 | $565 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
138 | $10 | $50 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
129 | $43 | $150 |
| Facet joint injection, second level, with imaging guidance An injection into a lower or sacral spine facet joint using imaging guidance for the second level treated. |
128 | $90 | $305 |
| Facet joint nerve destruction, single joint A procedure to destroy nerves in a single lower or sacral spinal facet joint using imaging guidance to target pain signals. |
109 | $438 | $1,211 |
| Trigger point injection, 3 or more muscles Injection of medication into three or more specific muscle trigger points to relieve pain. |
104 | $40 | $200 |
| Facet joint nerve destruction, additional joint This procedure uses imaging guidance to destroy nerves in an additional lower or sacral spinal facet joint. |
100 | $248 | $550 |
| Drug test with direct observation A drug screening test performed under direct observation to ensure the sample is provided correctly. This method is used to verify the integrity of the specimen collection process. |
77 | $12 | $30 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
73 | $63 | $180 |
| Spine facet joint injection with imaging guidance, single level An injection is administered into a single facet joint of the upper or middle spine while using imaging guidance to ensure accurate placement. |
66 | $180 | $600 |
| Facet joint injection, second level, with imaging An injection into a second spinal facet joint in the upper or middle spine, guided by imaging to ensure accurate placement. |
64 | $93 | $300 |
| Betamethasone steroid injection An injection containing a combination of betamethasone acetate and betamethasone sodium phosphate. |
62 | $5 | $18 |
| Additional sacral spine nerve root injection with imaging An injection of anesthetic and/or steroid medication into an additional sacral spine nerve root level, guided by imaging. |
58 | $79 | $400 |
| Injection into lower spine canal with imaging guidance A procedure where a substance is injected into the lower part of the spinal canal. The injection is performed using imaging guidance to ensure accurate placement. |
56 | $181 | $600 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
54 | $74 | $300 |
| Trigger point injection, 1-2 muscles A procedure involving the injection of medication into one or two specific muscles to treat trigger points. |
48 | $34 | $200 |
| Annual depression screening | 41 | $17 | $40 |
| Complete ultrasound scan of joint An ultrasound exam that uses sound waves to create detailed images of a joint. This procedure allows for the visualization of the joint's internal structures. |
33 | $36 | $200 |
| Facet joint nerve destruction, single joint This procedure uses imaging guidance to destroy the nerves supplying a single upper or middle spinal facet joint. It is performed to interrupt pain signals from that specific joint. |
30 | $409 | $1,200 |
| Facet joint nerve destruction, additional joint This procedure uses imaging guidance to destroy nerves in an additional upper or middle spinal facet joint. |
29 | $248 | $600 |
| Injection of anesthetic agent and/or steroid into other nerve or branch | 22 | $46 | $250 |
| Spinal injection with imaging guidance A procedure where medication is injected into the middle or upper part of the spinal canal. Imaging technology is used to guide the needle to the correct location. |
21 | $171 | $750 |
| Methylprednisolone acetate injection, 80 mg An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication. |
17 | $9 | $18 |
| Limited ultrasound of joint or extremity A focused ultrasound exam of a specific joint or other structure in the arm or leg, excluding blood vessels. |
14 | $32 | $150 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$8,975
Total received (2018-2024)
Avg $1,282/year across 7 years
Top 28% in NC for interventional pain medicine physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
18
Companies
192
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$7,166 (79.8%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,810 (20.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,206
2023
$1,371
2022
$1,952
2021
$446
2020
$312
2019
$2,371
2018
$1,317
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Boston Scientific Corporation
$574
Abbott Laboratories
$322
Nevro Corp.
$119
Curonix LLC
$98
Vertos Medical, Inc.
$44
PAINTEQ LLC
$30
Stryker Corporation
$20
Top 3 companies account for 84.1% of 2024 payments
All-time payments by company (2018-2024) ›
Nevro Corp.
$3,506
Boston Scientific Corporation
$3,030
Stryker Corporation
$816
Abbott Laboratories
$656
Relievant Medsystems, Inc.
$358
BOSTON SCIENTIFIC CORPORATION
$154
COMSORT, Inc
$100
Curonix LLC
$98
Vertos Medical, Inc.
$59
Saluda Medical Americas, Inc.
$40
PAINTEQ LLC
$30
Medtronic USA, Inc.
$22
Pacira Pharmaceuticals Incorporated
$21
Nalu Medical, Inc.
$20
Sonex Health, Inc.
$18
PFIZER INC.
$16
Stimwave Technologies Incorporated
$16
Collegium Pharmaceutical, Inc.
$15
Top 3 companies account for 81.9% of all-time payments
Associated products mentioned in payments ›
BRIDION · ETERNA · EXPAREL · Evoke SCS · GENERAL PAIN MANAGEMENT · GENERAL - PAIN MANAGEMENT · GENERAL PAIN MANAGEMENT · General - Pain Management · INTELLIS · IVS - MULTIGEN 2RF · IVS - NEW PRODUCT DEVELOPMENT · IVS - VERTEBRAL AUGMENTATION PRODUCTS · Intracept · LYRICA · MULTIGEN 2 · Nalu Neurostimulation System · OCTRODE · Omnia · PAINTEQ · PENTA · PNS FREEDOM-4A PERMANENT NEUROSTIMULATOR RECEIVER KIT CHANNEL A · PROCLAIM · SX-ONE MICROKNIFE · SYNCHROMED · Senza · Senza Spinal Cord Stimulation System · StimQ Peripheral Nerve StimulatorSystem · WAVEWRITER ALPHA · WaveWriter Alpha Prime 16 · XTAMPZA · mild Device Kit
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (80%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Interventional pain medicine physicians within 10 mi
5
Per 100K population
2.2
County median income
$72,892
Nearest hospital
WILMINGTON TREATMENT CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Knab is a mixed practice specialist, with above-average Medicare volume (top 15% in NC), with low-engagement industry engagement, with 21 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Knab experienced with injection, ropivacaine hydrochloride, 1 mg?
Based on Medicare claims data, Dr. Knab performed 5,114 injection, ropivacaine hydrochloride, 1 mg services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Knab receive payments from pharmaceutical companies?
Yes. Dr. Knab received a total of $8,975 from 18 companies across 192 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Knab's costs compare to other interventional pain medicine physicians in Wilmington?
Dr. Knab's average Medicare payment per service is $33. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Knab) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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