Medicare Enrolled
Dr. Christopher Zylak, MD
Radiation Oncology · Spokane, WA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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 2,982 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Zylak received a total of $46,831 from 34 pharmaceutical and/or device companies across 255 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. 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 of NPI registration
▲ Top 48% volume in WA
$46,831 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,982
Medicare services
Top 48% in WA for radiation oncology
Not available
Unique patients (not deduplicated)
$31
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
| 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. |
162 | $56 | $253 |
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
153 | $0 | $1 |
| 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. |
123 | $25 | $96 |
| 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. |
99 | $16 | $60 |
| 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. |
99 | $115 | $480 |
| 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 |
| 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. |
69 | $73 | $317 |
| 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 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
29 | $114 | $448 |
| 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. These counts do not measure clinical quality or years of experience.
2.3% high complexity
87.2% medium
10.4% 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
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
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)
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? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Radiation oncologists in nearby ZIP areas
104
County median income
$73,513
Nearest hospital to ZIP centroid (approximate)
SHRINERS HOSPITAL FOR CHILDREN
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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 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. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Zylak receive payments from pharmaceutical companies?
Yes. Dr. Zylak received a total of $46,831 from 34 companies across 255 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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 $31. 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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