Physician Profile
Ian C. Duncan, MD
Unclaimed ProfileAbout Dr. Duncan
Ian C. Duncan, MD is a healthcare provider in Visalia, CA specializing in orthopaedic surgery. Ian is also listed as specializing in orthopaedic sports medicine. Medicare claims data shows Ian provided 5,654 services to 2,402 patients. The services billed most often include epifix, per square centimeter, injection, triamcinolone acetonide, not otherwise specified, 10 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (559) 733-3346
- Email not available
Practice Locations
820 S AKERS 220
Visalia, CA 93277
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Arthritis
- Carpal tunnel
- Rotator cuff tear
- Sciatica
- Torn Achilles tendon
- Torn ACL
- Torn meniscus
Elbow, hand, and wrist
- Cubital tunnel syndrome
- Golfer's elbow
- Tennis elbow
- Trigger finger
- Wrist fracture
Foot and ankle
- Ankle fracture
- Ankle sprain
- Heel pain
Hip
- Hip labral tear
- Lateral hip pain and trochanteric bursitis
Shoulder
- Broken collarbone
- Frozen shoulder
- Shoulder impingement
- Dislocated joint
Sports and soft tissue
- Stress fracture
Trauma and bone
- Bone fractures
- Osteoporosis
Foot & Ankle
- Bunions
Spine
- Herniated disc
- Scoliosis
- Spinal stenosis
Procedures & services
Most searched procedures
- Achilles tendon repair
- ACL reconstruction
- Carpal tunnel surgery
- Hip replacement
- Knee replacement
Evaluation and nonsurgical
- Cast placement and management
Arthroscopy
- Hip arthroscopy
- Rotator cuff repair
- Shoulder arthroscopy
Foot & Ankle
- Ankle Ligament Surgery
- Hammertoe Surgery
Foot and ankle
- Ankle arthroscopy
- Ankle fusion
- Bunion surgery
Hand & Wrist
- De Quervain's Release
Hand and upper extremity
- Cubital tunnel decompression
- Dupuytren contracture surgery
- Trigger finger release
Injections & Non-Surgical
- Knee Joint Injection
- PRP Injection
Injections & pain relief
- Cortisone Shot for Joint Pain
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
- Kneecap Stabilization Surgery
- Meniscus Surgery
Shoulder surgery
- Shoulder labrum repair
Trauma & Fractures
- Broken Hip Surgery
- Hardware Removal Surgery
Trauma and fixation
- Open reduction and internal fixation
Procedures Most Often Billed to Medicare
5,654 services · 2,402 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
257 | More often than most peers in Orthopaedic Surgery |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
109 | More often than most peers in Orthopaedic Surgery |
| Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm | Procedure | 13121 |
100 | Too few peers to compare |
| Complicated repair of wound of scalp, arms, or legs, each additional 5.0 cm or less | Procedure | 13122 |
71 | Too few peers to compare |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
57 | More often than most peers in Orthopaedic Surgery |
| Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less | Procedure | 15271 |
55 | Too few peers to compare |
| Application of skin substitute graft to wound of trunk, arms, or legs, each additional 25.0 sq cm of wound 100.0 sq cm or less | Procedure | 15272 |
41 | Too few peers to compare |
| Incision of knee joint with removal of cartilage of front and back of knee | Procedure | 27335 |
29 | Too few peers to compare |
| Replacement of thigh bone and hip joint with prosthesis | Procedure | 27130 |
29 | As often as other peers in Orthopaedic Surgery |
| Shaving of part of shoulder bone and repair of ligament using an endoscope | Procedure | 29826 |
21 | More often than most peers in Orthopaedic Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopaedic surgeons at this location 4
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopaedic surgeons in Visalia 5
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2006 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Duncan specialize in?
Dr. Duncan is an orthopaedic surgeon in Visalia, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where is Dr. Duncan located?
Dr. Duncan is listed at 820 S Akers 220, Visalia, CA 93277. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Duncan's phone number?
The number on file is (559) 733-3346. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Duncan?
Dr. Duncan's National Provider Identifier is 1982866927. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Duncan go to medical school?
Dr. Duncan attended Other, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Duncan have?
Dr. Duncan has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Duncan do most often?
According to Medicare billing data, Dr. Duncan performs procedures including aspiration and/or injection of fluid from large joint, aspiration and/or injection of fluid large joint using ultrasound guidance and complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm; reads or performs imaging such as x-ray of knee, 3 views and x-ray of knee, 1-2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Duncan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Duncan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.