DOUGLAS S DIEKEMA
NPI 1720178619
Pediatrics - Pediatric Emergency Medicine in Seattle, WA
About Douglas S Diekema NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DOUGLAS S DIEKEMA (NPI 1720178619) is an individual pediatric emergency medicine provider in Seattle, Washington, licensed in Washington (MD00027354) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Douglas S Diekema is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Douglas Diekema reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 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.
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
SEATTLE, WA 98105
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 Douglas Diekema's NPI number?
The NPI number for Douglas Diekema is 1720178619. It was assigned to this individual provider in the NPPES registry on October 13, 2006.
Where is Douglas Diekema located?
Douglas Diekema practices at 4800 Sand Point Way NE, Seattle, WA 98105. The listed phone number is (206) 987-2000.
What is Douglas Diekema's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.
Is Douglas Diekema enrolled in Medicare?
Yes. Douglas Diekema is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Douglas Diekema's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Diekema reassigns Medicare benefits to Association Of Chmc And 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 Douglas Diekema's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Douglas Diekema accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Douglas Diekema 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.
When was this NPI record last updated?
The NPPES record for Douglas Diekema was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Douglas S Diekema · NPI 1720178619
Pediatric Emergency Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since October 13, 2006.
## Identity
- **NPI:** 1720178619 (Entity type: Individual)
- **Enumerated:** October 13, 2006
- **Primary specialty:** Pediatrics - Pediatric Emergency Medicine · taxonomy 2080P0204X
- **State license:** MD00027354 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 4800 SAND POINT WAY NE, Seattle, WA 98105-3901
- **Phone:** (206) 987-2000
## 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:** Association Of Chmc And University Physicians (NPI 1649497827, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Other 2874; Medicaid 8153959 (WA); Medicare UPIN F75306; and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1720178619) · Data from the CMS NPPES public registry.