WILLIAM WANG MD
NPI 1932603321
Anesthesiology in Seattle, WA
About William Wang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM WANG MD (NPI 1932603321) is an individual anesthesiology provider in Seattle, Washington, licensed in Washington (MD61274741) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Tulane University School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
William Wang 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 Reassignment
Medicare enrollment records show William Wang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 241 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.
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 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 William Wang's NPI number?
The NPI number for William Wang is 1932603321. It was assigned to this individual provider in the NPPES registry on March 20, 2018.
Where is William Wang located?
William Wang practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 520-5000.
What is William Wang's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Wang enrolled in Medicare?
Yes. William Wang 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 organization bills Medicare for William Wang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Wang reassigns Medicare benefits to Darin Rentz Do PC (Redlands, CA). The 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 William Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Wang was last updated on June 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# William Wang, MD · NPI 1932603321
Anesthesiology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since March 20, 2018.
## Identity
- **NPI:** 1932603321 (Entity type: Individual)
- **Enumerated:** March 20, 2018
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD61274741 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1959 NE PACIFIC ST, Seattle, WA 98195-1352
- **Phone:** (206) 520-5000
## 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:** Darin Rentz Do PC (NPI 1689321747, Redlands, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** June 14, 2022
- **Other identifiers:** Medicaid 1932603321 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1932603321) · Data from the CMS NPPES public registry.