Brendan John Mccullough, MD

Diagnostic Radiology (CMS) · Walnut Creek, CA

Call (425) 563-1500 Directions

At a glance

2401 Shadelanders Drive, Walnut Creek, CA 94598

NPPES record updated Jun 4, 2026. Public records can lag behind changes at a practice.

Before you call: a quick checklist

Are you accepting new patients?
Do you accept my specific insurance plan?
Do you provide the service I need at this address?
Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

2401 Shadelanders Drive
Walnut Creek, CA 94598

Additional reported practice locations

19020 33Rd Ave W Ste 210
Lynnwood, WA 980364748
Phone: 4255631500
Fax: 4255631501

203 S Western Ave
Tonasket, WA 988558803
Phone: 5094862151
Fax: 5092231640

REPORTED BACKGROUND

Education & affiliations

Medical / professional school: University Of Washington School Of Medicine
Graduation year: 2007
CMS specialties: Diagnostic Radiology

Practice groups

Reported hospital affiliations

Asante Rogue Regional Medical Center Medford, OR
Overlake Hospital Medical Center & Clinics Bellevue, WA
Peacehealth Southwest Medical Cente Vancouver, WA
Swedish Medical Center / Cherry Hill Seattle, WA
Yakima Valley Memorial Yakima, WA

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

Source: CMS Facility Affiliation Data · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

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PAYMENT TRANSPARENCY

Industry-reported general payments

No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record

NPI1497954317

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Registry details

Primary taxonomy: Diagnostic Radiology (CMS)
Taxonomy code: 2085R0202X
Enumeration date: Jul 11, 2007
Record updated: Jun 4, 2026

More registry details

Provider type: Individual · Type 1
Reported credentials: MD