DR. ABIGAIL FILLMORE TIRRELL M.D., M.P.H.
NPI 1386039394
Anesthesiology in Portland, OR
About Dr. Abigail Fillmore Tirrell M.d., M.p.h. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ABIGAIL FILLMORE TIRRELL M.D., M.P.H. (NPI 1386039394) is an individual anesthesiology provider in Portland, Oregon, licensed in Oregon (MD186991) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with Legacy Mount Hood Medical Center, and is a graduate of Oregon Health Sciences University School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Abigail Fillmore Tirrell M.d., M.p.h. 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 Abigail Tirrell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, OR 97205
- Reassigned Medicare billing, Oregon and Washington enrollments
- 271 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 3
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Legacy Mount Hood Medical Center
Acute Care Hospitals · Gresham, OROther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Abigail Tirrell's NPI number?
The NPI number for Abigail Tirrell is 1386039394. It was assigned to this individual provider in the NPPES registry on April 6, 2015.
Where is Abigail Tirrell located?
Abigail Tirrell practices at 707 SW Washington St Ste 700, Portland, OR 97205. The listed phone number is (503) 299-9906.
What is Abigail Tirrell's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Abigail Tirrell enrolled in Medicare?
Yes. Abigail Tirrell 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 Abigail Tirrell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abigail Tirrell reassigns Medicare benefits to Oregon Anesthesiology Group PC (Portland, OR). 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 Abigail Tirrell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Abigail Tirrell affiliated with any hospitals?
According to CMS data, Abigail Tirrell is affiliated with Legacy Mount Hood Medical Center.
When was this NPI record last updated?
The NPPES record for Abigail Tirrell was last updated on October 16, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.