GEORGE A. DIAZ MD
NPI 1164523130
Internal Medicine - Infectious Disease in Everett, WA
About George A. Diaz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GEORGE A. DIAZ MD (NPI 1164523130) is an individual infectious disease provider in Everett, Washington, licensed in Washington (MD00043980) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and is a graduate of University Of Oklahoma College Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Accepted Insurance
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
George A. Diaz Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show George Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Shoreline, WA 98177
- Reassigned Medicare billing, Washington enrollment
Olympia, WA 98506
- Reassigned Medicare billing, Washington enrollment
- 646 clinicians in this Medicare group
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 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Skagit Valley Hospital
Acute Care Hospitals · Mount Vernon, WAProvidence Regional Medical Center Everett
Acute Care Hospitals · Everett, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
EVERETT, WA 98201
EVERETT, WA 98201
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 George Diaz's NPI number?
The NPI number for George Diaz is 1164523130. It was assigned to this individual provider in the NPPES registry on September 25, 2006.
Where is George Diaz located?
George Diaz practices at 1330 Rockefeller Ave Suite 210, Everett, WA 98201. The listed phone number is (425) 261-4940.
What is George Diaz's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is George Diaz enrolled in Medicare?
Yes. George 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.
Which organizations bill Medicare for George Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), George Diaz reassigns Medicare benefits to 2 organizations: Everett Infectious Diseases, PLLC (Shoreline, WA) and Providence Health & Services Washington (Olympia, WA). 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 George Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does George Diaz accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list George 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 George Diaz affiliated with any hospitals?
According to CMS data, George Diaz is affiliated with Skagit Valley Hospital and Providence Regional Medical Center Everett.
When was this NPI record last updated?
The NPPES record for George Diaz was last updated on January 23, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.
# George A. Diaz, MD · NPI 1164523130
Infectious Disease physician in Everett, Washington. Individual provider, active in the CMS NPPES registry since September 25, 2006.
## Identity
- **NPI:** 1164523130 (Entity type: Individual)
- **Enumerated:** September 25, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MD00043980 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1330 ROCKEFELLER AVE, SUITE 210, Everett, WA 98201-1684
- **Phone:** (425) 261-4940 · **Fax:** (425) 261-4945
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Everett Infectious Diseases, PLLC (NPI 1679961130, Shoreline, WA); Providence Health & Services Washington (NPI 1174744304, Olympia, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Oklahoma College Of Medicine, class of 1999
## Record status
- **NPPES last updated:** January 23, 2009
- **Other identifiers:** Medicaid 8423550 (WA); Medicare UPIN I31035 (WA); Medicare UPIN G8877968 (WA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1164523130) · Data from the CMS NPPES public registry.