DR. DEBORAH M MERRILL MD
NPI 1740324235
Anesthesiology in Seattle, WA
About Dr. Deborah M Merrill Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEBORAH M MERRILL MD (NPI 1740324235) is an individual anesthesiology provider in Seattle, Washington, licensed in Washington (MD60017325) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS, is affiliated with Highline Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
Other Identifiers 3
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. Deborah M Merrill 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
7Medicare enrollment records show Deborah Merrill reassigns Medicare billing to 7 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
- Medicare enrollment name: Physicians Anesthesia Service PLLC
- 233 clinicians in this Medicare group
Tacoma, WA 98405
- Reassigned Medicare billing, Washington enrollment
- 152 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Providence Wa Anesthesia Services, PC
- 171 clinicians in this Medicare group
Portland, OR 97213
- Reassigned Medicare billing, Oregon enrollment
- 419 clinicians in this Medicare group
Portland, OR 97205
- Reassigned Medicare billing, Oregon enrollment
- 271 clinicians in this Medicare group
Flagstaff, AZ 86001
- Reassigned Medicare billing, Arizona enrollment
- 552 clinicians in this Medicare group
Minneapolis, MN 55454
- Reassigned Medicare billing, Minnesota enrollment
- 681 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Highline Medical Center
Acute Care Hospitals · Burien, WAOther 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
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 Deborah Merrill's NPI number?
The NPI number for Deborah Merrill is 1740324235. It was assigned to this individual provider in the NPPES registry on February 16, 2007. The provider is also known as Deborah Williams M.D..
Where is Deborah Merrill located?
Deborah Merrill practices at 1229 Madison St Suite 1440, Seattle, WA 98104. The listed phone number is (206) 625-0578.
What is Deborah Merrill's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Deborah Merrill enrolled in Medicare?
Yes. Deborah Merrill 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 Deborah Merrill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deborah Merrill reassigns Medicare benefits to 7 organizations: Proliance Surgeons, Inc., P.S. (Seattle, WA), Pacific Anesthesia PC (Tacoma, WA), Providence Wa Anesthesia Services, P.C. (Everett, WA), Hospitalist Medicine Physicians Of Washington - Tcs (Portland, OR), Oregon Anesthesiology Group PC (Portland, OR) and 2 more organizations, listed in the Medicare section above. 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 Deborah Merrill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Deborah Merrill accept?
Health plans from Blue Cross Blue Shield of Arizona and Premera Blue Cross Blue Shield of Alaska list Deborah Merrill 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 Deborah Merrill affiliated with any hospitals?
According to CMS data, Deborah Merrill is affiliated with Highline Medical Center.
When was this NPI record last updated?
The NPPES record for Deborah Merrill was last updated on May 11, 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.
# Dr. Deborah M Merrill, MD · NPI 1740324235
Anesthesiology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since February 16, 2007.
## Identity
- **NPI:** 1740324235 (Entity type: Individual)
- **Enumerated:** February 16, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD60017325 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1229 MADISON ST, SUITE 1440, Seattle, WA 98104-3586
- **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:** 7 organizations under Medicare reassignment (form CMS-855R): Proliance Surgeons, Inc., P.S. (NPI 1811936990, Seattle, WA); Pacific Anesthesia PC (NPI 1497796452, Tacoma, WA); Providence Wa Anesthesia Services, P.C. (NPI 1669615894, Everett, WA); Hospitalist Medicine Physicians Of Washington - Tcs (NPI 1649816380, Portland, OR); Oregon Anesthesiology Group PC (NPI 1477527786, Portland, OR); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** May 11, 2023
- **Other identifiers:** Other P00823574; Medicaid 8514515 (WA); Other CD5550
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Source: [NPI Profile](https://npiprofile.com/npi/1740324235) · Data from the CMS NPPES public registry.