DR. BRIAN J KEYASHIAN M.D.
NPI 1962776245
Surgery - Vascular Surgery in Walnut Creek, CA

Q: What is Brian Keyashian's NPI number?

The NPI number for Brian Keyashian is 1962776245. It was assigned to this individual provider in the NPPES registry on March 3, 2012.

Q: What is Brian Keyashian's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Q: When was this NPI record last updated?

The NPPES record for Brian Keyashian was last updated on February 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 03, 2012PECOS EnrolledAccepts Medicare Assignment

87.26/100

CMS Quality Rating

2637 SHADELANDS DR STE A, WALNUT CREEK, CA 94598(925) 932-6330(925) 932-0139 Get Directions Write a Review

NPPES record last updated: February 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 11, 2025, Dec 15, 2020, Mar 31, 2017 (3 updates tracked since 2017).

On this page

About Dr. Brian J Keyashian M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BRIAN J KEYASHIAN M.D. (NPI 1962776245) is an individual vascular surgery provider in Walnut Creek, California, licensed in California (A147947) and active in the NPI registry since March 2012. He is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1962776245

Entity TypeIndividualMale

Primary Taxonomy2086S0129X

Provider Legal NameDR. BRIAN J KEYASHIANCredential: M.D.

Location Address2637 SHADELANDS DR STE AWalnut Creek, CA 94598-2512

Mailing Address2637 Shadelands DrWalnut Creek, CA 94598-2512 · (925) 932-6330

Phone(925) 932-6330

Fax(925) 932-0139

Sole ProprietorYes

Medical School CMSOtherGraduated 2010

Enumeration DateMarch 3, 2012

Last NPPES UpdateFebruary 11, 20253 updates tracked since enumeration

NPPES CertifiedFebruary 11, 2025

✔ NPI 1962776245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0129X

License✔ Licensed in CA · A147947

Definition

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Also ListedSurgeryTaxonomy 208600000X · License 125.058017 (IL)

2637 SHADELANDS DR STE A, Walnut Creek, CA 94598

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Brian J Keyashian M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517257413

PECOS Enrollment IDI20170510001571

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Brian Keyashian reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bass Medical Group

Same address

Specialist

2637 SHADELANDS DR
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
347 clinicians in this Medicare group

NPI 1154401941 (925) 932-6330

Shadelands Endovascular, LLC

0.4 mi

Ambulatory Surgical

460 N WIGET LN STE B
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
6 clinicians in this Medicare group

NPI 1245620954 (925) 627-3495

John Muir Trauma Physicians Billing Service

1.4 mi

Trauma Surgery

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
810 clinicians in this Medicare group

NPI 1962551861 (925) 947-5331

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 28

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

557 services339 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

314 services225 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

292 services205 patients

Ultrasound of hemodialysis access 93990

An ultrasound of hemodialysis access is a non-invasive procedure that uses sound waves to create images of your dialysis access site. It helps monitor the access site's health and detect any potential issues like blockages or narrowing.

197 services88 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

166 services118 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

135 services133 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

133 services133 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

130 services109 patients

Review by radiologist of arm or leg artery image 75710

This procedure involves a radiologist examining images of your arm or leg arteries. These images are obtained through a non-invasive method, like an ultrasound or CT scan. The radiologist reviews these images to identify any abnormalities, such as blockages or narrowing, which can affect blood flow.

107 services82 patients

Review by radiologist of abdominal aorta image 75625

This is a procedure where a radiologist, a doctor specialized in medical imaging, examines an image of your abdominal aorta. The abdominal aorta is the large blood vessel that carries blood to your lower body. The radiologist checks for any abnormalities to ensure your overall vascular health.

94 services75 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

65 services32 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

54 services47 patients

Removal of plaque in artery of leg, initial vessel 37229

This procedure involves removing plaque from the initial vessel in your leg. Plaque, a build-up of fat, cholesterol, and other substances, can block blood flow. The removal process, known as an angioplasty, restores healthy blood circulation in your leg.

45 services38 patients

Removal of plaque in arteries of leg 37225

This procedure, known as atherectomy, involves clearing out plaque buildup in the leg arteries. Plaque can restrict blood flow, causing discomfort and potential health issues. A special device is inserted into the artery to carefully remove the plaque, improving blood circulation.

39 services35 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

38 services36 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

36 services36 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

33 services19 patients

Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist 36902

This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.

30 services27 patients

Removal of plaque and insertion of stents in arteries of leg 37227

This procedure, known as angioplasty, involves a small tube being inserted into your leg artery. The tube has a tiny balloon that inflates to remove plaque blocking the artery. A stent (a small mesh tube) is then placed to keep the artery open, improving blood flow.

30 services26 patients

Chemical destruction of first incompetent vein of arm or leg using imaging guidance 36482

This procedure involves using a chemical to close off a malfunctioning vein in your arm or leg. Imaging guidance is used to accurately locate the vein. This helps improve blood flow by rerouting it through healthier veins.

27 services23 patients

Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 93978

This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.

27 services25 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

25 services24 patients

Balloon dilation of dialysis segment with review by radiologist 36907

Balloon dilation of a dialysis segment is a procedure where a tiny balloon is inserted and inflated in a narrowed area of your dialysis access site, improving blood flow. A radiologist reviews images to ensure success.

23 services19 patients

Complete ultrasound of artery and vein blood flow pre-op assessment on both sides of body for hemodialysis access 93985

This procedure involves using ultrasound technology to examine the blood flow in your arteries and veins on both sides of your body. It's crucial for preparing for hemodialysis access, ensuring safe and effective treatment.

17 services16 patients

Balloon dilation of artery of leg 37224

Balloon dilation of the leg artery is a procedure to improve blood flow. A tiny balloon is inserted into a narrowed artery, then inflated to widen the artery. This helps increase blood circulation to the leg. It's usually done under local anesthesia.

16 services15 patients

Balloon dilation of artery of leg, initial vessel 37228

Balloon dilation of the artery of the leg is a procedure to improve blood flow. A small balloon is inserted into the leg artery and inflated to widen the vessel, allowing better circulation. This is typically the first vessel treated.

16 services15 patients

Balloon dilation of artery with review by radiologist, initial artery 37246

Balloon dilation of an artery is a procedure where a small balloon is inserted into a narrowed artery and inflated to widen it. This improves blood flow. A radiologist reviews the procedure to ensure its success. It's typically the first artery treated.

16 services13 patients

Ultrasonic guidance for blood vessel access 76937

13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.26/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

82.97

Promoting Interoperability

85.91

Improvement Activities

Reported Quality Measures

Appropriate Use of DXA Scans in Women Under 65 Years Who Do Not Meet the Risk Factor Profile for Osteoporotic Fracture

Lower rates are better for this measure.

0%50 patients

Breast Cancer Screening

63%206 patients3/55-star benchmark: 93%

Cervical Cancer Screening

22%165 patients1/55-star benchmark: 98%

Colorectal Cancer Screening

29%500 patients2/55-star benchmark: 88%

Controlling High Blood Pressure

69%177 patients4/55-star benchmark: 91%

Diabetes: Eye Exam

15%130 patients1/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

63%130 patients2/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

92%1,727 patients4/55-star benchmark: 100%

e-Prescribing

100%68 patients5/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

22%571 patients1/55-star benchmark: 100%

HIV Screening

26%373 patients2/55-star benchmark: 60%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

39%904 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

16%767 patients1/55-star benchmark: 97%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 84% · 456 patients

Patients screened: 92% · 456 patients

22%45 patients1/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

100%341 patients5/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

87%474 patients4/55-star benchmark: 91%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Pneumatic compressor, segmental home model without calibrated gradient pressure E0651

DME-Other DME · category DE000N

1 supplier11 claims11 services$752.95 avg. paid by Medicare

Segmental pneumatic appliance for use with pneumatic compressor, full leg E0667

DME-Other DME · category DE000N

1 supplier11 claims22 services$312.28 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JON CHRISTOPHER PINEDA ORLINO M.D.

Surgery (Vascular Surgery)

2637 SHADELANDS DR STE A
WALNUT CREEK, CA 94598

Contra Costa County (925) 932-6330

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brian Keyashian's NPI number?

The NPI number for Brian Keyashian is 1962776245. It was assigned to this individual provider in the NPPES registry on March 3, 2012.

Where is Brian Keyashian located?

Brian Keyashian practices at 2637 Shadelands Dr Ste A, Walnut Creek, CA 94598. The listed phone number is (925) 932-6330.

What is Brian Keyashian's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Brian Keyashian enrolled in Medicare?

Yes. Brian Keyashian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Brian Keyashian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brian Keyashian reassigns Medicare benefits to 3 organizations: Bass Medical Group (Walnut Creek, CA), Shadelands Endovascular, LLC (Walnut Creek, CA) and John Muir Trauma Physicians Billing Service (Walnut Creek, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brian Keyashian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Brian Keyashian was last updated on February 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.