Alexander David Malloy, D.O.
General Surgery (CMS) · Seattle, WA
At a glance
325 9Th Ave, Seattle, WA 98104-2420
Published activity: Hernia repair (minimally invasive) · Removal of tissue · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Oct 24, 2025. 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
325 9Th AveSeattle, WA 98104-2420
Additional reported practice locations
1321 Colby AveEverett, WA 982011665
Phone: 4252612000 999 N Curtis Rd Ste 415
Boise, ID 837061334
Phone: 2083022600
Fax: 2083022625
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2012
- CMS specialties
- General Surgery
Practice groups
- Billings Clinic Specialty Supplies And Services, Llc
- Providence Health And Services- Washington
- The Association Of University Physicians
Reported hospital affiliations
- Billings Clinic Hospital Billings, MT
- Harborview Medical Center Seattle, WA
- Providence Regional Medical Center Everett Everett, 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.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Hernia repair (minimally invasive) | 1-10 |
| Removal of tissue | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
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.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Travel and lodging | $925.92 |
| Food and beverage | $329.55 |
Reporting companies
| Company | Amount |
|---|---|
| ZIMMER BIOMET HOLDINGS, INC. | $1,255.47 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- General Surgery (CMS)
- Taxonomy code
- 2086S0127X
- Enumeration date
- Jun 18, 2012
- Record updated
- Oct 24, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- D.O.
Reported taxonomies and licenses
2086S0127X · Primary
License reported: OP61134169 WA
208600000X
License reported: DOS-1605 HI
2086S0102X
License reported: OC-0411 ID
208D00000X
License reported: DOS-1605 HI
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
325 9Th AveSeattle, WA 98104-2420
- Phone
- (206) 520-5000
Mailing address
PO BOX 50095SEATTLE, WA 981455095
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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