DEYAN Z MILLIGAN MD
NPI 1871677450
Anesthesiology in Seattle, WA
About Deyan Z Milligan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEYAN Z MILLIGAN MD (NPI 1871677450) is an individual anesthesiology provider in Seattle, Washington, licensed in Washington (MD00033396) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Deyan Z Milligan 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 Deyan Milligan 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
- Medicare enrollment name: Physicians Anesthesia Service PLLC
- 233 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 6
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.
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 98104
SEATTLE, WA 98104
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 Deyan Milligan's NPI number?
The NPI number for Deyan Milligan is 1871677450. It was assigned to this individual provider in the NPPES registry on October 24, 2006.
Where is Deyan Milligan located?
Deyan Milligan practices at 1229 Madison St Ste 1440, Seattle, WA 98104. The listed phone number is (206) 625-0578.
What is Deyan Milligan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Deyan Milligan enrolled in Medicare?
Yes. Deyan Milligan 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 Deyan Milligan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deyan Milligan reassigns Medicare benefits to Proliance Surgeons, Inc., P.S. (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 Deyan Milligan'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 Deyan Milligan was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Deyan Z Milligan, MD · NPI 1871677450
Anesthesiology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since October 24, 2006.
## Identity
- **NPI:** 1871677450 (Entity type: Individual)
- **Enumerated:** October 24, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD00033396 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1229 MADISON ST STE 1440, Seattle, WA 98104-3538
- **Phone:** (206) 625-0578
## 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:** Proliance Surgeons, Inc., P.S. (NPI 1811936990, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1983
## Record status
- **NPPES last updated:** March 7, 2023
- **Other identifiers:** Medicaid 1106483 (WA); Other 166720 (WA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1871677450) · Data from the CMS NPPES public registry.