DR. ZHIHONG ZHANG MD, PHD
NPI 1215345913
Internal Medicine - Hematology & Oncology in Seattle, WA
About Dr. Zhihong Zhang Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZHIHONG ZHANG MD, PHD (NPI 1215345913) is an individual hematology & oncology provider in Seattle, Washington, licensed in Washington (MD61019267) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS, is affiliated with Providence Regional Medical Center Everett, and maintains a secondary practice location in Everett.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
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
Dr. Zhihong Zhang Md, Phd 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 Zhihong Zhang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 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 41
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.
Providence Regional Medical Center Everett
Acute Care Hospitals · Everett, WAOverlake Hospital Medical Center
Acute Care Hospitals · Bellevue, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98109 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.
SEATTLE, WA 98109
SEATTLE, WA 98109
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 Zhihong Zhang's NPI number?
The NPI number for Zhihong Zhang is 1215345913. It was assigned to this individual provider in the NPPES registry on July 25, 2014.
Where is Zhihong Zhang located?
Zhihong Zhang practices at 825 Eastlake Ave E, Seattle, WA 98109. The listed phone number is (206) 520-5000.
What is Zhihong Zhang's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Zhihong Zhang enrolled in Medicare?
Yes. Zhihong Zhang 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 Zhihong Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zhihong Zhang reassigns Medicare benefits to 2 organizations: The Association Of University Physicians (Seattle, WA) and Optum Care Washington PLLC (Everett, 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 Zhihong Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zhihong Zhang accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Zhihong Zhang 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 Zhihong Zhang affiliated with any hospitals?
According to CMS data, Zhihong Zhang is affiliated with Providence Regional Medical Center Everett and Overlake Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Zhihong Zhang was last updated on December 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.