DR. ANN AILEEN HOFFMAN D.O.
NPI 1578593976
Obstetrics & Gynecology in Arlington, WA
About Dr. Ann Aileen Hoffman D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANN AILEEN HOFFMAN D.O. (NPI 1578593976) is an individual obstetrics & gynecology provider in Arlington, Washington, licensed in Washington (OP00001821) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Dr. Ann Aileen Hoffman D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ann Hoffman 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
- 129 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98223 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ARLINGTON, WA 98223
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 Hoffman's NPI number?
The NPI number for Ann Hoffman is 1578593976. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Ann Hoffman located?
Ann Hoffman practices at 903 Medical Center Dr, Arlington, WA 98223. The listed phone number is (360) 435-0242.
What is Ann Hoffman's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Ann Hoffman enrolled in Medicare?
Yes. Ann Hoffman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ann Hoffman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Hoffman reassigns Medicare benefits to Obstetrix Medical Group Of Washington Inc Ps (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 Hoffman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Hoffman accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Ann Hoffman 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 Ann Hoffman was last updated on February 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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. Ann Aileen Hoffman, D.O. · NPI 1578593976
Obstetrics & Gynecology physician in Arlington, Washington. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1578593976 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** OP00001821 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 903 MEDICAL CENTER DR, Arlington, WA 98223-1697
- **Phone:** (360) 435-0242 · **Fax:** (360) 435-9135
## 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:** Obstetrix Medical Group Of Washington Inc Ps (NPI 1861599573, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 23, 2011
- **Other identifiers:** Medicaid 8314585 (WA); Medicare UPIN H10976 (WA); Medicare PIN AB29717 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1578593976) · Data from the CMS NPPES public registry.