ANN E GIESEL
NPI 1366523615
Pediatrics - Adolescent Medicine in Seattle, WA
About Ann E Giesel NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN E GIESEL (NPI 1366523615) is an individual adolescent medicine provider in Seattle, Washington, licensed in Washington (MD00024215) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ann E Giesel is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ann Giesel 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 Ann Giesel's NPI number?
The NPI number for Ann Giesel is 1366523615. It was assigned to this individual provider in the NPPES registry on October 17, 2006.
Where is Ann Giesel located?
Ann Giesel practices at 4800 Sand Point Way NE, Seattle, WA 98105. The listed phone number is (206) 987-2000.
What is Ann Giesel's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.
Is Ann Giesel enrolled in Medicare?
Yes. Ann Giesel is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ann Giesel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Giesel 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 Ann Giesel'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 Ann Giesel was last updated on December 4, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Ann E Giesel · NPI 1366523615
Adolescent Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since October 17, 2006.
## Identity
- **NPI:** 1366523615 (Entity type: Individual)
- **Enumerated:** October 17, 2006
- **Primary specialty:** Pediatrics - Adolescent Medicine · taxonomy 2080A0000X
- **State license:** MD00024215 (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:** December 4, 2007
- **Other identifiers:** Medicaid 8109712 (WA); Medicare PIN 8805351 (WA); Medicare UPIN E37848; and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1366523615) · Data from the CMS NPPES public registry.