Medicare Enrolled
Dr. Ian Duncan, MD
Orthopedic Surgery · Visalia, CA
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. Duncan 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 →
Are you Dr. Duncan?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Duncan
Dr. Ian Duncan is an orthopedic surgery specialist in Visalia, CA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Duncan performed 18,815 Medicare services across 2,164 unique beneficiaries.
Between the years covered by Open Payments, Dr. Duncan received a total of $7,359 from 39 pharmaceutical and/or device companies across 125 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in orthopedic surgery. 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. Duncan 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.
✓ 17 years in practice
▲ Top 1% volume in CA
$7,359 industry payments
Medicare Practice Summary
Medicare Utilization ↗18,815
Medicare services
Top 1% in CA for orthopedic surgery
2,164
Unique beneficiaries
$118
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,107 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 |
|---|---|---|---|
| Epifix, per square centimeter | 14,586 | $117 | $330 |
| 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. |
963 | $70 | $155 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
548 | $1 | $12 |
| Skin substitute graft application, 25 sq cm or less Application of a skin substitute graft to a wound on the trunk, arms, or legs covering 25 square centimeters or less. |
397 | $127 | $248 |
| 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. |
396 | $103 | $211 |
| Skin substitute graft, additional 25 sq cm Application of a skin substitute graft to an additional 25 square centimeters of a wound on the trunk, arms, or legs. |
352 | $20 | $40 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
208 | $84 | $294 |
| Skin and tissue removal, 20 sq cm or less This procedure involves the surgical excision of skin and underlying tissue from an area measuring 20 square centimeters or smaller. |
181 | $102 | $210 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
181 | $55 | $248 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
118 | $34 | $99 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
113 | $27 | $90 |
| Radiofrequency vein destruction, first vein A procedure to treat the first incompetent vein in the arm or leg using radiofrequency energy and imaging guidance. |
111 | $905 | $1,808 |
| 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. |
109 | $129 | $264 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
79 | $28 | $99 |
| Total knee replacement | 74 | $1,004 | $4,498 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
71 | $38 | $100 |
| Complicated wound repair, scalp/arms/legs, 2.6-7.5 cm A complex surgical procedure to close a wound on the scalp, arms, or legs that measures between 2.6 and 7.5 centimeters in length. |
57 | $102 | $850 |
| Orthovisc intra-articular injection An injection of hyaluronan or its derivative into a joint space to provide lubrication and cushioning. |
38 | $99 | $600 |
| Arthroscopic rotator cuff repair A minimally invasive surgery to repair torn shoulder tendons using a small camera and instruments inserted through tiny incisions. |
28 | $833 | $3,342 |
| Wrist X-ray, 2 views An X-ray imaging test of the wrist using two different angles to visualize the bones and joints. |
27 | $26 | $85 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
27 | $104 | $341 |
| Arthroscopic shoulder surgery for bone shaving and ligament repair A minimally invasive procedure using a small camera to shave part of the shoulder bone and repair a ligament. |
25 | $132 | $3,049 |
| Chemical injection for multiple incompetent leg veins A procedure involving the injection of a chemical agent into several non-functioning veins in the leg. |
23 | $155 | $321 |
| Total hip replacement Surgical procedure to replace the thigh bone and hip joint with artificial components. |
22 | $1,015 | $4,164 |
| X-ray of hand, 2 views An X-ray imaging test of the hand using two different angles to visualize the bones and joints. |
21 | $25 | $84 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
20 | $46 | $89 |
| Removal of both knee cartilages using an endoscope | 14 | $457 | $1,966 |
| Total shoulder joint prosthetic repair Surgical replacement of the shoulder joint with a prosthetic device. This procedure involves removing damaged joint components and inserting artificial parts to restore function. |
13 | $1,087 | $4,420 |
| Partial collarbone removal via endoscope This procedure involves the surgical removal of a portion of the collarbone (clavicle) using an endoscope, a small camera inserted through a tiny incision to guide the surgeon. |
13 | $247 | $1,953 |
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.
0.6% high complexity
4.2% medium
95.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,359
Total received (2018-2024)
Avg $1,051/year across 7 years
Top 36% in CA for orthopedic surgery
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
39
Companies
125
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
$3,711 (50.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$3,648 (49.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,077
2023
$193
2022
$1,334
2021
$445
2020
$997
2019
$1,545
2018
$1,769
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Zimmer Biomet Holdings, Inc.
$292
Avanos Medical
$171
Stryker Corporation
$147
Medical Device Business Services, Inc.
$130
DePuy Synthes Sales Inc.
$122
Smith+Nephew, Inc.
$94
ORTHO DEVELOPMENT CORPORATION
$68
Ethicon US, LLC
$37
VERTEX PHARMACEUTICALS INCORPORATED
$17
Top 3 companies account for 56.7% of 2024 payments
All-time payments by company (2018-2024) ›
Sequoia Surgical, Inc.
$1,485
Cornerstone Medical Associates, Inc.
$1,200
DJO, LLC
$964
Ortho Development Corporation
$498
Zimmer Biomet Holdings, Inc.
$332
Smith+Nephew, Inc.
$329
Stryker Corporation
$321
Avanos Medical
$171
Flexion Therapeutics, Inc.
$166
DePuy Synthes Sales Inc.
$156
Skeletal Dynamics LLC
$152
Pacira Pharmaceuticals Incorporated
$152
Smith & Nephew, Inc.
$144
Pacira Therapeutics, Inc.
$134
Medical Device Business Services, Inc.
$130
Skeletal Dynamics Inc
$118
Arthrex, Inc.
$110
PFIZER INC.
$99
Heron Therapeutics, Inc.
$92
Catalyst OrthoScience
$70
ORTHO DEVELOPMENT CORPORATION
$68
Medtronic Vascular, Inc.
$61
Orthofix Medical, Inc.
$51
Endo Pharmaceuticals Inc.
$43
Ethicon US, LLC
$37
Bioventus LLC
$36
NextStep Arthropedix, LLC
$34
Melinta Therapeutics, Inc.
$30
Heraeus Medical, LLC.
$29
ORGANOGENESIS INC.
$21
SANOFI-AVENTIS U.S. LLC
$21
VERTEX PHARMACEUTICALS INCORPORATED
$17
KCI USA, Inc
$16
Horizon Therapeutics plc
$15
Ferring Pharmaceuticals Inc.
$14
E.R. Squibb & Sons, L.L.C.
$14
Vericel Corporation
$14
Merck Sharp & Dohme Corporation
$11
Osiris Therapeutics Inc.
$7
Top 3 companies account for 49.6% of all-time payments
Associated products mentioned in payments ›
AEQUALIS ASCEND FLEX · AEQUALIS FLEX REVIVE · AEQUALIS PERFORM · AEQUALIS PERFORM REVERSED · ANCHOR C · ANCHORAGE · ARTHROPLASTY IMPLANTS SHOULDER ARTHROPLASTY & FRACTURE REVERS · Archer CSR Total Shoulder System · BKS Revision · BKS TriMax · BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION · Baxdela · Biomet Knee Blades-Surgical · CHANTIX · COLLAGENASE SANTYL · ClosureFast · Coblation Wands · Durolane · ELIQUIS · EUFLEXXA · EXPAREL · Entrada · Exogen · Exparel · Fast-Fix 360 · GRAFIX/GRAFIXPL/STRAVIX · Geminus · MACI · MAKO · ON-Q* PUMP AND ACCESSORIES · ORTHOVISC · PALACOS · PENNSAID · PICO · PICO 7 · PICO 7 Single Use Negative Pressure Wound Therapy · PICO Single Use Negative Pressure Wound Therapy · PICO7 · Physio-Stim · Puraply Antimicrobial · REGENETEN · RENASYS GO · Regeneten · SIVEXTRO · SNAP · SYNVISC-ONE · Santyl · Tapestry · Trivicta · VISTASEAL · XIAFLEX · Zilretta · Zynrelef · iNSitu Hip System
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 (50%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Orthopedic surgeons within 10 mi
12
Per 100K population
2.5
County median income
$69,489
Nearest hospital
KAWEAH HEALTH MEDICAL CENTER
6.2 mi
6.2 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. Duncan is a mixed practice specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement, with 17 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. Duncan experienced with epifix, per square centimeter?
Based on Medicare claims data, Dr. Duncan performed 14,586 epifix, per square centimeter 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. Duncan receive payments from pharmaceutical companies?
Yes. Dr. Duncan received a total of $7,359 from 39 companies across 125 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. Duncan's costs compare to other orthopedic surgeons in Visalia?
Dr. Duncan's average Medicare payment per service is $118. 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. Duncan) 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 →
Explore related providers
Specialty guide
Understanding Orthopedic Surgery
Common procedures, typical costs, and what industry payments mean in orthopedic surgery.
Same specialty & city
Orthopedic Surgeons in Visalia
Browse orthopedic surgeons in Visalia ranked by procedure volume and transparency data.
Highest volume
Top Orthopedic Surgeons in CA
Orthopedic surgeons ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Orthopedic Surgeons in CA
Which CA orthopedic surgeons receive the most from drug and device companies.
By company
Sequoia Surgical, Inc. Payments to Doctors
See all physicians who received payments from Sequoia Surgical, Inc.
By company
Cornerstone Medical Associates, Inc. Payments to Doctors
See all physicians who received payments from Cornerstone Medical Associates, Inc.
By company
DJO, LLC Payments to Doctors
See all physicians who received payments from DJO, LLC.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology