ALEXANDER JOSEPH DIAZ AGACNP-BC
NPI 1790439263
Nurse Practitioner - Acute Care in Seattle, WA
About Alexander Joseph Diaz Agacnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER JOSEPH DIAZ AGACNP-BC (NPI 1790439263) is an individual acute care provider in Seattle, Washington, licensed in Washington (AP61427907) and active in the NPI registry since February 2022. He is enrolled in Medicare PECOS, is affiliated with Virginia Mason Medical Center, and maintains a secondary practice location in Tacoma.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Alexander Joseph Diaz Agacnp-bc 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.
Areas of Expertise CMS Part B claims 3
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Virginia Mason Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98101
SEATTLE, WA 98101
SEATTLE, WA 98101
SEATTLE, WA 98101
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 Alexander Diaz's NPI number?
The NPI number for Alexander Diaz is 1790439263. It was assigned to this individual provider in the NPPES registry on February 3, 2022.
Where is Alexander Diaz located?
Alexander Diaz practices at 925 Seneca St, Seattle, WA 98101. The listed phone number is (206) 625-7373.
What is Alexander Diaz's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Alexander Diaz enrolled in Medicare?
Yes. Alexander Diaz 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.
What insurance does Alexander Diaz accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Alexander Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexander Diaz affiliated with any hospitals?
According to CMS data, Alexander Diaz is affiliated with Virginia Mason Medical Center.
When was this NPI record last updated?
The NPPES record for Alexander Diaz was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
