Medicare Enrolled
Dr. Christopher Zylak, MD
Radiation Oncology · Spokane, WA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Mixed 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. Zylak 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. Zylak
Dr. Christopher Zylak is a radiation oncology specialist in Spokane, WA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Zylak performed 2,719 Medicare services across 849 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zylak received a total of $46,831 from 34 pharmaceutical and/or device companies across 255 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. The majority of payments are classified as financial or ownership interests (royalties, licensing fees, or investment interests). Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zylak 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.
✓ 20 years in practice
▲ Top 45% volume in WA
$46,831 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,719
Medicare services
Top 45% in WA for radiation oncology
849
Unique beneficiaries
$33
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~136 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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
1,768 | $0 | $1 |
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
153 | $0 | $1 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
92 | $87 | $391 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
76 | $141 | $600 |
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
76 | $9 | $32 |
| Injection, fentanyl citrate, 0.1 mg | 76 | $1 | $2 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
65 | $40 | $151 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
35 | $14 | $54 |
| Ultrasound of abdominal aorta An imaging test that uses sound waves to create pictures of the abdominal aorta, the large blood vessel that carries blood from the heart to the lower body. |
32 | $109 | $400 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
30 | $135 | $600 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
29 | $114 | $448 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
26 | $31 | $109 |
| Abdominal fluid drainage with imaging guidance Removal of fluid from the abdominal cavity using imaging technology to guide the procedure. |
25 | $229 | $899 |
| Neck artery catheter insertion with radiology review A tube is inserted into an artery in the neck for diagnostic or treatment purposes. A radiologist reviews the procedure. |
20 | $218 | $1,216 |
| Bone marrow biopsy and aspiration A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions. |
20 | $136 | $519 |
| Insertion of tunneled central venous catheter for infusion, age 5+ A surgical procedure to place a long-term catheter into a large vein for delivering medications or fluids. The catheter is tunneled under the skin to reduce infection risk and provide stable access for patients aged 5 and older. |
19 | $196 | $828 |
| Infusion tube insertion with imaging guidance A radiologist inserts an infusion tube into the body while using imaging guidance to ensure proper placement and reviews the procedure. |
19 | $65 | $243 |
| Radiologist review of image for embolization A radiologist reviews medical images to guide the insertion of material designed to block blood flow. |
19 | $55 | $192 |
| Blood vessel imaging Imaging test to visualize the blood vessels. |
19 | $69 | $243 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
19 | $47 | $400 |
| Complete ultrasound of abdomen and pelvis blood flow This procedure uses sound waves to create images of blood flow in the arteries and veins of the abdomen and pelvis. It evaluates the rate and direction of blood movement within these vessels. |
17 | $201 | $800 |
| Chest fluid aspiration with imaging guidance This procedure involves removing fluid from the chest cavity using imaging technology to guide the needle placement. |
15 | $256 | $930 |
| Head artery clot removal and dissolution A procedure to remove a blood clot from an artery in the head and inject medication to dissolve remaining clots, guided by fluoroscopy. |
15 | $646 | $2,485 |
| Ultrasound of leg arteries at rest and after exercise This test uses sound waves to create images of the blood vessels in the legs while the patient is resting and after physical activity to assess blood flow. |
15 | $114 | $600 |
| Occlusion of central nervous system or spinal cord artery | 14 | $819 | $3,216 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
13 | $168 | $800 |
| Arterial catheter insertion in neck A tube is inserted into an artery in the neck for diagnostic or treatment purposes. A radiologist reviews the procedure. |
12 | $118 | $415 |
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.
2.6% high complexity
88.1% medium
9.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$46,831
Total received (2018-2024)
Avg $6,690/year across 7 years
Top 4% in WA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
34
Companies
255
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.
Financial / Ownership
Ownership or investment interests, royalties, and licensing fees
$17,617 (37.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$13,816 (29.5%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$11,648 (24.9%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$3,750 (8.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$16,499
2023
$2,026
2022
$1,257
2021
$3,263
2020
$2,909
2019
$13,429
2018
$7,448
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Janssen Pharmaceuticals, Inc
$13,544
Balt USA, LLC
$445
Imperative Care, Inc
$420
MicroVention, Inc.
$392
Medtronic, Inc.
$389
Sirtex Medical Inc
$350
Rapid Medical Ltd
$330
Route 92 Medical, Inc.
$225
Abbott Laboratories
$140
GE HEALTHCARE
$92
Chiesi USA, Inc.
$75
LeMaitre Vascular, Inc.
$43
Boston Scientific Corporation
$32
Penumbra, Inc.
$21
Top 3 companies account for 87.3% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic Vascular, Inc.
$19,367
Janssen Pharmaceuticals, Inc
$14,324
Balt USA, LLC
$3,280
Sirtex Medical Inc
$1,465
MicroVention, Inc.
$1,398
Medtronic, Inc.
$1,330
Inari Medical, Inc.
$1,068
Abbott Laboratories
$595
Imperative Care, Inc
$504
Bard Peripheral Vascular, Inc.
$439
Medtronic USA, Inc.
$346
Rapid Medical Ltd
$330
Agiliti Surgical, Inc.
$272
Route 92 Medical, Inc.
$269
Penumbra, Inc.
$217
Terumo Medical Corporation
$210
GE HEALTHCARE
$201
AngioDynamics, Inc.
$175
BARD PERIPHERAL VASCULAR, INC.
$169
phenox Inc.
$125
ShockWave Medical, Inc
$109
Stryker Corporation
$108
Philips Electronics North America Corporation
$101
Biogen, Inc.
$84
Chiesi USA, Inc.
$75
LeMaitre Vascular, Inc.
$43
Boston Scientific Corporation
$43
Viz.ai, Inc.
$42
DePuy Synthes Sales Inc.
$39
ASAHI INTECC USA, INC.
$37
Avenu Medical Inc.
$24
Radius Health, Inc.
$19
GE HealthCare
$14
Merit Medical Systems Inc
$8
Top 3 companies account for 78.9% of all-time payments
Associated products mentioned in payments ›
8F BASE CAMP SHEATH SYSTEM · ASAHI PTCA Guide Wire · AZUR · Acculink carotid stent system · Auryon Laser System 100-120 Vac · Avenir Coils · Barricade Coil System · CLEVIPREX · CROSSER · CT THROMBECTOMY SYSTEM KIT · ClosureFast · DIREXION · ELLIPSYS VASCULAR ACCESS SYSTEM · Ellipsys · Emboshield NAV6 system · FLOWTRIEVER CATHETER · FlowTriever · Glidesheath · Headway Duo Microcatheter · Headway Microcatheter · HydroFrame Coil · IGT D Peripheral · Indigo System · JETI PERIPHERAL CATHETER · KYPHON EXPRESS II KYPHOPAK TRAY · LAVA LES (Liquid Embolic System) · LIFESTREAM · LUTONIX · LVIS · LVIS Jr. · Navicross · OSTEOCOOL RF ABLATION · Optima Coil System · Optima Thermal Coil System · PIPELINE · PULSERIDER · Penumbra System · Perclose ProGlide suture mediated closure system · Pipeline · Prestige Coil System · RED 72 · RESTOREFLOW · RIST · Ranger · Rotarex · RotarexS 6 F x 135 cm · Ruby · S · SIR-Spheres Microspheres · SOFIA 6F-131CM STR · SOLITAIRE X · SPINRAZA · SUPERA · Scepter XC Balloon Catheter · Solitaire · StabiliT System · Supera peripheral stent system · TIGERTRIEVER 17 REVASCULARIZATION DEVICE · TR Band · TREVO · Tymlos · VASCUTAPE RADIOPAQUE TAPE · VENOVO · Varithena Administration Pack · Vascular Lithotripsy · VenaSeal · Viz.AI LVO · WEB · WEB ANEURYSM EMBOLIZATION SYSTEM · WEB Aneurysm Embolization System · XARELTO · ZOOM 88-T LARGE DISTAL PLATFORM
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 →
Payments are distributed across multiple categories with no single dominant type. Total industry engagement is in the top 4% for radiation oncology in WA.
Geographic Context
Radiation oncologists within 10 mi
104
Per 100K population
19.1
County median income
$73,513
Nearest hospital
SHRINERS HOSPITAL FOR CHILDREN
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. Zylak is a mixed practice specialist, with moderate Medicare volume, with mixed engagement industry engagement in the top 4% of WA peers, with 20 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. Zylak experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Zylak performed 1,768 contrast dye for imaging (iodine-based) 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. Zylak receive payments from pharmaceutical companies?
Yes. Dr. Zylak received a total of $46,831 from 34 companies across 255 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. Zylak's costs compare to other radiation oncologists in Spokane?
Dr. Zylak'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. Zylak) 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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