Medicare Enrolled
Dr. Brian Keyashian, M.D.
Surgery · Walnut Creek, 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. Keyashian 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. Keyashian?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Keyashian
Dr. Brian Keyashian is a surgery specialist in Walnut Creek, CA, with 14 years of NPI registration. Based on federal Medicare data, Dr. Keyashian performed 9,090 Medicare services across 1,795 unique beneficiaries.
Between the years covered by Open Payments, Dr. Keyashian received a total of $18,996 from 20 pharmaceutical and/or device companies across 194 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in 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. Keyashian 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.
✓ 14 years in practice
▲ Top 1% volume in CA
$18,996 industry payments
Medicare Practice Summary
Medicare Utilization ↗9,090
Medicare services
Top 1% in CA for surgery
1,795
Unique beneficiaries
$128
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~649 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. |
6,555 | $0 | $1 |
| 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. |
512 | $121 | $460 |
| 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. |
295 | $239 | $1,022 |
| Ultrasound of arm and leg arteries This procedure uses sound waves to create images of the blood vessels in the arms and legs. It allows healthcare providers to examine the structure and blood flow within these arteries. |
280 | $75 | $438 |
| Ultrasound of hemodialysis access An ultrasound imaging test used to evaluate the blood flow and structure of a hemodialysis access site. |
222 | $126 | $790 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
172 | $168 | $635 |
| 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. |
115 | $189 | $776 |
| Additional blood vessel ultrasound evaluation An ultrasound exam of a blood vessel that includes a radiologist's review. This code applies to each additional vessel evaluated beyond the initial one. |
101 | $173 | $776 |
| 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. |
100 | $153 | $585 |
| 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. |
77 | $39 | $122 |
| 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. |
66 | $176 | $801 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
64 | $145 | $612 |
| Radiologist review of abdominal aorta image A radiologist reviews images of the abdominal aorta to evaluate the blood vessel. |
63 | $121 | $191 |
| 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. |
57 | $116 | $475 |
| 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. |
47 | $118 | $450 |
| New patient office visit, complex (60-74 min) | 44 | $208 | $770 |
| Hemodialysis circuit intervention with balloon dilation A procedure to insert a needle or tube into a hemodialysis circuit and dilate the dialysis segment using a balloon, with radiological review. |
42 | $183 | $4,830 |
| Ultrasound of blood vessel, initial vessel An ultrasound exam of a blood vessel that includes a radiologist's review of the initial vessel. |
39 | $1,050 | $5,304 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts A complete ultrasound exam of the aorta, vena cava, groin vessels, or bypass grafts. This imaging test uses sound waves to visualize these blood vessels. |
34 | $157 | $602 |
| 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. |
32 | $11 | $194 |
| Arterial plaque removal, initial vessel A procedure to remove plaque buildup from an artery in the leg. This is performed on the first vessel treated during the session. |
31 | $7,790 | $40,569 |
| Arterial plaque removal in leg A procedure to remove plaque buildup from the arteries in the leg to restore blood flow. |
27 | $7,560 | $43,000 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
27 | $72 | $237 |
| Artery plaque removal and stent insertion in leg This procedure involves removing plaque buildup from leg arteries and placing stents to keep the blood vessels open. |
24 | $12,455 | $55,974 |
| Balloon dilation of dialysis access with radiologist review A minimally invasive procedure to widen a narrowed section of a dialysis access vessel using a balloon catheter. The procedure includes review by a radiologist to ensure proper placement and effectiveness. |
19 | $124 | $2,893 |
| Chemical destruction of first incompetent vein with imaging guidance This procedure uses imaging guidance to chemically destroy the first incompetent vein in the arm or leg. |
15 | $1,837 | $8,432 |
| Arm vein relocation with artery connection for hemodialysis A surgical procedure to move a vein in the arm and connect it to an artery to create access for hemodialysis. |
15 | $545 | $2,275 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
15 | $136 | $550 |
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
87.1% medium
12.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$18,996
Total received (2018-2024)
Avg $2,714/year across 7 years
Top 13% in CA for surgery
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
20
Companies
194
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
$18,996 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$850
2023
$2,469
2022
$10,651
2021
$759
2020
$337
2019
$1,635
2018
$2,295
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Philips North America LLC
$283
Medtronic, Inc.
$189
Silk Road Medical, Inc.
$186
Boston Scientific Corporation
$143
Terumo Medical Corporation
$30
Bard Peripheral Vascular, Inc.
$20
Top 3 companies account for 77.3% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic, Inc.
$12,724
Medtronic Vascular, Inc.
$1,916
Silk Road Medical, Inc.
$1,276
Cook Incorporated
$691
Philips Electronics North America Corporation
$423
Bard Peripheral Vascular, Inc.
$400
Abbott Laboratories
$346
Shockwave Medical, Inc
$286
Philips North America LLC
$283
Boston Scientific Corporation
$201
Cardiovascular Systems Inc.
$152
MEDELA LLC
$60
W. L. Gore & Associates, Inc.
$38
Cook Medical LLC
$37
ABBVIE INC.
$33
Maquet Cardiovascular U.S. Sales, L.L.C.
$31
Terumo Medical Corporation
$30
BARD PERIPHERAL VASCULAR, INC.
$26
PORTOLA PHARMACEUTICALS, INC.
$24
Janssen Pharmaceuticals, Inc
$18
Top 3 companies account for 83.8% of all-time payments
Associated products mentioned in payments ›
(6577) Visions 014 · (6578) Visions 018 · (9281) Turbo Elite · (AZ7) Lasers · ABRE · BEVYXXA · COOK MEDICAL AAA · COOK MEDICAL ZENITH · ClosureFast · ELLIPSYS VASCULAR ACCESS SYSTEM · ELUVIA · ENROUTE Transcarotid Neuroprotection System · Endurant · FLIXENE · Fluency Endovascular Stent Graft · HAWKONE · HawkOne · IGT D Service Syst · IN.PACT ADMIRAL · IN.PACT AV · IN.PACT Admiral · JETI PERIPHERAL CATHETER · LIFESTREAM · NATRELLE SALINE-FILLED BREAST IMPLANTS · Omnilink Elite vascular stent system · PERCLOSE PROGLIDE · Perclose ProGlide suture mediated closure system · Peripheral Orbital Atherectomy System · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · TurboHawk · VALIANT CAPTIVIA · VENASEAL · VENOVO · VIABAHN Endoprosthesis with PROPATEN Bioactive Surface · VIABAHN VBX Balloon Expandable Endoprosthesis · Vascular Lithotripsy · XARELTO
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Surgerists within 10 mi
273
Per 100K population
23.5
County median income
$125,727
Nearest hospital
JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS
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. Keyashian is a mixed practice specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement in the top 13% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Keyashian experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Keyashian performed 6,555 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. Keyashian receive payments from pharmaceutical companies?
Yes. Dr. Keyashian received a total of $18,996 from 20 companies across 194 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. Keyashian's costs compare to other surgerists in Walnut Creek?
Dr. Keyashian's average Medicare payment per service is $128. 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. Keyashian) 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
Same specialty & city
Surgerists in Walnut Creek
Browse surgerists in Walnut Creek ranked by procedure volume and transparency data.
Highest volume
Top Surgerists in CA
Surgerists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Surgerists in CA
Which CA surgerists receive the most from drug and device companies.
By company
Medtronic, Inc. Payments to Doctors
See all physicians who received payments from Medtronic, Inc.
By company
Medtronic Vascular, Inc. Payments to Doctors
See all physicians who received payments from Medtronic Vascular, Inc.
By company
Silk Road Medical, Inc. Payments to Doctors
See all physicians who received payments from Silk Road Medical, Inc.
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