Dr. Matthew Siljander, MD
What this data tells you about Dr. Siljander
Dr. Matthew Siljander is an orthopedic surgery specialist in Newport Beach, CA, with 11 years of NPI registration. Based on federal Medicare data, Dr. Siljander performed 4,230 Medicare services across 2,343 unique beneficiaries.
Between the years covered by Open Payments, Dr. Siljander received a total of $56,614 from 10 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. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Siljander 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.
Medicare Practice Summary
Medicare Utilization ↗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 |
|---|---|---|---|
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
1,371 | $1 | $5 |
| 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. |
668 | $74 | $210 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
356 | $41 | $140 |
| 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. |
348 | $103 | $310 |
| 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. |
265 | $42 | $134 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
226 | $56 | $250 |
| 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. |
156 | $37 | $120 |
| Pelvis X-ray, 1-2 views An X-ray imaging test of the pelvic area using one to two different angles to visualize the bones and joints. |
142 | $25 | $90 |
| 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. |
107 | $128 | $480 |
| 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. |
98 | $87 | $320 |
| Total knee replacement | 68 | $1,086 | $4,650 |
| Total hip replacement Surgical procedure to replace the thigh bone and hip joint with artificial components. |
66 | $1,076 | $4,250 |
| Remote therapeutic monitoring, first 20 minutes Physician management of remote therapeutic monitoring data for the first 20 minutes per calendar month. |
59 | $42 | $153 |
| Musculoskeletal remote monitoring device supply, 30 days A device supply that records and transmits data for remote monitoring of the musculoskeletal system over a 30-day period. |
57 | $45 | $180 |
| Remote therapy monitoring setup and education This service involves setting up equipment and providing patient education for the remote monitoring of therapy. |
55 | $17 | $62 |
| 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. |
51 | $30 | $99 |
| Remote therapeutic monitoring, additional 20 minutes This service covers the physician's time for managing remote therapeutic monitoring data beyond the initial monthly allotment. It applies for each additional 20-minute increment used within a calendar month. |
43 | $32 | $112 |
| Hip X-ray, 1 view An X-ray image of the hip joint taken from a single angle to visualize the bones and surrounding structures. |
34 | $28 | $97 |
| X-ray for bone length assessment An X-ray image is taken to measure and evaluate the length of bones. |
33 | $41 | $130 |
| MRI of leg joint, without contrast A magnetic resonance imaging scan of a joint in the leg performed without the use of contrast dye. |
15 | $137 | $1,627 |
| X-ray of both hips, 2 views An X-ray imaging test that captures two views of both hip joints to evaluate bone structure and alignment. |
12 | $31 | $130 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (80%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Geographic Context
2.8 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. Siljander is a clinical cardiology specialist, with above-average Medicare volume (top 13% in CA), with consulting-driven industry engagement in the top 12% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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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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