PATRICIA M CALLAHAN MD
NPI 1023010543
Pediatrics in Eugene, OR
About Patricia M Callahan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICIA M CALLAHAN MD (NPI 1023010543) is an individual pediatrics provider in Eugene, Oregon, licensed in Oregon (MD221841) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS, maintains a secondary practice location in Appleton, and is a graduate of West Virginia University School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
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
Patricia M Callahan 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
2Medicare enrollment records show Patricia Callahan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Eugene, OR 97401
- Reassigned Medicare billing, Oregon enrollment
- 248 clinicians in this Medicare group
Oneida, WI 54155
- Reassigned Medicare billing, Wisconsin enrollment
- 78 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 97408 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EUGENE, OR 97408
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 Patricia Callahan's NPI number?
The NPI number for Patricia Callahan is 1023010543. It was assigned to this individual provider in the NPPES registry on August 15, 2005.
Where is Patricia Callahan located?
Patricia Callahan practices at 2830 Crescent Ave, Eugene, OR 97408. The listed phone number is (541) 686-9000.
What is Patricia Callahan's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Patricia Callahan enrolled in Medicare?
Yes. Patricia Callahan 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 Patricia Callahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patricia Callahan reassigns Medicare benefits to 2 organizations: Oregon Healthcare Resources, LLC (Eugene, OR) and Oneida Nation (Oneida, WI). 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 Patricia Callahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Patricia Callahan accept?
Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Patricia Callahan 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 Patricia Callahan was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
# Patricia M Callahan, MD · NPI 1023010543
Pediatrics physician in Eugene, Oregon. Individual provider, active in the CMS NPPES registry since August 15, 2005.
## Identity
- **NPI:** 1023010543 (Entity type: Individual)
- **Enumerated:** August 15, 2005
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** MD221841 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 2830 CRESCENT AVE, Eugene, OR 97408-7397
- **Phone:** (541) 686-9000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Oregon Healthcare Resources, LLC (NPI 1215761002, Eugene, OR); Oneida Nation (NPI 1740278308, Oneida, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** West Virginia University School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** September 19, 2025
- **Other identifiers:** Medicaid 4657480 (MI); Medicaid 4514404 (MI)
---
Source: [NPI Profile](https://npiprofile.com/npi/1023010543) · Data from the CMS NPPES public registry.