PHOEBE THAM MD
NPI 1659957462
Anesthesiology in Seattle, WA
About Phoebe Tham Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHOEBE THAM MD (NPI 1659957462) is an individual anesthesiology provider in Seattle, Washington, licensed in Washington (MD.MD.61582677) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Phoebe Tham Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Phoebe Tham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 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.
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.
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 Phoebe Tham's NPI number?
The NPI number for Phoebe Tham is 1659957462. It was assigned to this individual provider in the NPPES registry on March 22, 2021.
Where is Phoebe Tham located?
Phoebe Tham practices at 325 9th Ave, Seattle, WA 98104. The listed phone number is (206) 520-5000.
What is Phoebe Tham's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Phoebe Tham enrolled in Medicare?
Yes. Phoebe Tham is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Phoebe Tham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Phoebe Tham reassigns Medicare benefits to The Association Of University Physicians (Seattle, WA). 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 Phoebe Tham'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 Phoebe Tham was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 days 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.
# Phoebe Tham, MD · NPI 1659957462
Anesthesiology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since March 22, 2021.
## Identity
- **NPI:** 1659957462 (Entity type: Individual)
- **Enumerated:** March 22, 2021
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD.MD.61582677 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 325 9TH AVE, Seattle, WA 98104-2420
- **Phone:** (206) 520-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Association Of University Physicians (NPI 1023041159, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659957462) · Data from the CMS NPPES public registry.